protein modification ; MOD:00000 def: "Covalent modification of, or a change resulting in an alteration of the measured molecular mass of, a peptide or protein amino acid residue." [PubMed:18688235] alkylated residue ; MOD:00001 def: "A protein modification that effectively replaces a hydrogen atom with an alkyl group." [PubMed:18688235] O-glycosyl-L-serine ; MOD:00002 def: "A protein modification that effectively converts an L-serine residue to O3-glycosylserine." [PubMed:18688235] UniMod ; MOD:00003 def: "Entry from UniMod." [PubMed:18688235] artifact ; MOD:00004 def: "Artifact entry from UniMod - OBSOLETE because organizational use is no longer required." [PubMed:18688235] is_obsolete: true O-glycosyl-L-threonine ; MOD:00005 def: "A protein modification that effectively converts an L-threonine residue to O3-glycosylthreonine." [PubMed:18688235] N-glycosylated residue ; MOD:00006 def: "A protein modification that effectively replaces a residue hydrogen atom on a nitrogen with a carbohydrate-like group through a glycosidic bond." [PubMed:18688235] selenium substitution for sulfur ; MOD:00007 def: "A protein modification that effectively substitutes a selenium atom for a sulfur atom." [PubMed:12148805, UniMod:162] common ; MOD:00008 def: "Entry from UniMod representing one or more entries in RESID. OBSOLETE because organizational use is no longer required." [PubMed:18688235] is_obsolete: true natural residue ; MOD:00009 def: "A protein modification that removes a residue, or inserts or replaces a residue with a natural, standard or nonstandard, encoded residue." [PubMed:6692818, RESID:AA0000] L-alanine residue ; MOD:00010 def: "A protein modification that effectively converts a source amino acid residue to an L-alanine." [ChEBI:29948, DeltaMass:0, PubMed:6692818, RESID:AA0001] L-arginine residue ; MOD:00011 def: "A protein modification that effectively converts a source amino acid residue to an L-arginine." [ChEBI:29952, DeltaMass:0, PubMed:518876, PubMed:6692818, RESID:AA0002] L-asparagine residue ; MOD:00012 def: "A protein modification that effectively converts a source amino acid residue to an L-asparagine." [ChEBI:29956, DeltaMass:0, PubMed:15736973, PubMed:5681232, PubMed:6692818, PubMed:9789001, RESID:AA0003] L-aspartic acid residue ; MOD:00013 def: "A protein modification that effectively converts a source amino acid residue to an L-aspartic acid." [ChEBI:29958, DeltaMass:0, PubMed:1097438, PubMed:339692, PubMed:4399050, PubMed:5764436, PubMed:6692818, PubMed:8089117, PubMed:9521123, PubMed:9582379, RESID:AA0004] L-cysteine residue ; MOD:00014 def: "A protein modification that effectively converts a source amino acid residue to an L-cysteine." [ChEBI:29950, DeltaMass:0, PubMed:1310545, PubMed:15790858, PubMed:3447159, PubMed:6692818, PubMed:7338899, RESID:AA0005] L-glutamic acid residue ; MOD:00015 def: "A protein modification that effectively converts a source amino acid residue to an L-glutamic acid." [ChEBI:29972, DeltaMass:0, PubMed:1881881, PubMed:4565668, PubMed:4922541, PubMed:6692818, PubMed:9326660, PubMed:957425, RESID:AA0006] L-glutamine residue ; MOD:00016 def: "A protein modification that effectively converts a source amino acid residue to an L-glutamine." [ChEBI:30011, DeltaMass:0, PubMed:3340166, PubMed:6692818, PubMed:9342308, RESID:AA0007] glycine residue ; MOD:00017 def: "A protein modification that effectively converts a source amino acid residue to a glycine." [ChEBI:29947, DeltaMass:0, PubMed:1310545, PubMed:6692818, RESID:AA0008] L-histidine residue ; MOD:00018 def: "A protein modification that effectively converts a source amino acid residue to an L-histidine." [ChEBI:29979, DeltaMass:0, PubMed:14342316, PubMed:2722967, PubMed:512, PubMed:5460889, PubMed:6129252, PubMed:6692818, PubMed:6876174, RESID:AA0009] L-isoleucine residue ; MOD:00019 def: "A protein modification that effectively converts a source amino acid residue to an L-isoleucine." [ChEBI:30009, DeltaMass:0, PubMed:6692818, RESID:AA0010] L-leucine residue ; MOD:00020 def: "A protein modification that effectively converts a source amino acid residue to an L-leucine." [ChEBI:30006, DeltaMass:0, PubMed:11478885, PubMed:6692818, RESID:AA0011] L-lysine residue ; MOD:00021 def: "A protein modification that effectively converts a source amino acid residue to L-lysine." [ChEBI:29967, DeltaMass:0, PubMed:3106962, PubMed:6120171, PubMed:6692818, RESID:AA0012] L-methionine residue ; MOD:00022 def: "A protein modification that effectively converts a source amino acid residue to L-methionine." [ChEBI:29983, DeltaMass:0, PubMed:6411710, PubMed:6692818, RESID:AA0013] L-phenylalanine residue ; MOD:00023 def: "A protein modification that effectively converts a source amino acid residue to L-phenylalanine." [ChEBI:29997, DeltaMass:0, PubMed:6692818, RESID:AA0014] L-proline residue ; MOD:00024 def: "A protein modification that effectively converts a source amino acid residue to L-proline." [ChEBI:30017, DeltaMass:0, PubMed:6692818, PubMed:8547259, RESID:AA0015] L-serine residue ; MOD:00025 def: "A protein modification that effectively converts a source amino acid residue to L-serine." [ChEBI:29999, DeltaMass:0, PubMed:4399050, PubMed:6692818, RESID:AA0016] L-threonine residue ; MOD:00026 def: "A protein modification that effectively converts a source amino acid residue to L-threonine." [ChEBI:30013, DeltaMass:0, PubMed:2989287, PubMed:6692818, RESID:AA0017] L-tryptophan residue ; MOD:00027 def: "A protein modification that effectively converts a source amino acid residue to L-tryptophan." [ChEBI:29954, DeltaMass:0, PubMed:2059637, PubMed:6692818, PubMed:9324768, RESID:AA0018] L-tyrosine residue ; MOD:00028 def: "A protein modification that effectively converts a source amino acid residue to L-tyrosine." [ChEBI:29975, DeltaMass:0, PubMed:2190093, PubMed:2542938, PubMed:5550972, PubMed:6061414, PubMed:6120171, PubMed:6692818, RESID:AA0019] L-valine residue ; MOD:00029 def: "A protein modification that effectively converts a source amino acid residue to an L-valine." [ChEBI:30015, DeltaMass:0, PubMed:6692818, RESID:AA0020] N-formyl-L-methionine residue ; MOD:00030 def: "A protein modification that effectively converts a source amino acid residue to an N-formyl-L-methionine, a natural pretranslational modification." [ChEBI:33718, OMSSA:22, PubMed:10825024, PubMed:11152118, PubMed:2165784, PubMed:3042771, PubMed:8758896, RESID:AA0021#FMET, UniMod:107#N-term] L-selenocysteine residue ; MOD:00031 def: "A protein modification that effectively converts a source amino acid residue to an L-selenocysteine, a natural pretranslational modification." [ChEBI:30000, PubMed:10523135, PubMed:1066676, PubMed:2037562, PubMed:2963330, PubMed:4734725, PubMed:6076213, PubMed:6217842, PubMed:6714945, RESID:AA0022] uncategorized protein modification ; MOD:00032 def: "A protein modification that is not chemically categorized." [PubMed:18688235] crosslinked residues ; MOD:00033 def: "A protein modification that crosslinks two or more amino acid residues with covalent bonds." [PubMed:18688235] L-cystine (cross-link) ; MOD:00034 def: "A protein modification that effectively cross-links two L-cysteine residues to form L-cystine." [ChEBI:16283, DeltaMass:0, PubMed:1988019, PubMed:2001356, PubMed:2076469, PubMed:3083866, PubMed:366603, PubMed:7918467, PubMed:8344916, RESID:AA0025#CYS2] (2S,3R)-3-hydroxyasparagine ; MOD:00035 def: "A protein modification that effectively converts an L-asparagine residue to (2S,3R)-3-hydroxyasparagine." [PubMed:11823643, PubMed:2820791, RESID:AA0026] (2S,3R)-3-hydroxyaspartic acid ; MOD:00036 def: "A protein modification that effectively converts an L-aspartic acid residue to (2S,3R)-3-hydroxyaspartic acid." [OMSSA:59, PubMed:6572939, PubMed:6871167, PubMed:8355279, RESID:AA0027, UniMod:35#D] 5-hydroxy-L-lysine ; MOD:00037 def: "A protein modification that effectively converts an L-lysine residue to one of the diastereomeric 5-hydroxy-L-lysine residues." [ChEBI:60175, PubMed:18688235] 3-hydroxy-L-proline ; MOD:00038 def: "A protein modification that effectively converts an L-proline residue to 3-hydroxy-L-proline." [ChEBI:16889, PubMed:2400108, PubMed:3734192, PubMed:4343807, RESID:AA0029] 4-hydroxy-L-proline ; MOD:00039 def: "A protein modification that effectively converts an L-proline residue to 4-hydroxy-L-proline" [ChEBI:18095, PubMed:11292863, PubMed:2400108, PubMed:3734192, RESID:AA0030] 2-pyrrolidone-5-carboxylic acid (Gln) ; MOD:00040 def: "A protein modification that effectively converts an L-glutamine residue to 2-pyrrolidone-5-carboxylic acid." [ChEBI:30652, DeltaMass:123, OMSSA:110, PubMed:10214721, PubMed:1836357, PubMed:26343, PubMed:3473473, RESID:AA0031#GLN, UniMod:28#Q] L-gamma-carboxyglutamic acid ; MOD:00041 def: "A protein modification that effectively converts an L-glutamic acid residue to L-gamma-carboxyglutamic acid." [DeltaMass:217, OMSSA:48, PubMed:10517147, PubMed:1807167, PubMed:3263814, PubMed:4528109, PubMed:7457858, PubMed:8135347, PubMed:8868490, PubMed:9188685, RESID:AA0032, UniMod:299#E] L-aspartic 4-phosphoric anhydride ; MOD:00042 def: "A protein modification that effectively converts an L-aspartic acid residue to L-aspartic 4-phosphoric anhydride." [ChEBI:15836, PubMed:4357737, RESID:AA0033, UniMod:21#D] S-phospho-L-cysteine ; MOD:00043 def: "A protein modification that effectively converts an L-cysteine residue to S-phospho-L-cysteine." [PubMed:3142516, PubMed:7961745, PubMed:8128219, RESID:AA0034, UniMod:21#C] 1'-phospho-L-histidine ; MOD:00044 def: "A protein modification that effectively converts an L-histidine residue to tele-phospho-L-histidine (N-tau-phospho-L-histidine, 1'-phospho-L-histidine)." [PubMed:11038361, PubMed:5642389, PubMed:6692818, RESID:AA0035] 3'-phospho-L-histidine ; MOD:00045 def: "A protein modification that effectively converts an L-histidine residue to pros-phospho-L-histidine (N-pi-phospho-L-histidine, 3'-phospho-L-histidine)." [PubMed:1549615, PubMed:5642389, PubMed:6692818, PubMed:7669763, PubMed:7803390, RESID:AA0036] O-phospho-L-serine ; MOD:00046 def: "A protein modification that effectively converts an L-serine residue to O-phospho-L-serine." [ChEBI:15811, DeltaMass:0, OMSSA:6, PubMed:12923550, PubMed:4065410, PubMed:8061611, RESID:AA0037, UniMod:21#S] O-phospho-L-threonine ; MOD:00047 def: "A protein modification that effectively converts an L-threonine residue to O-phospho-L-threonine." [ChEBI:21967, DeltaMass:0, OMSSA:7, PubMed:12923550, PubMed:7678926, RESID:AA0038, UniMod:21#T] O4'-phospho-L-tyrosine ; MOD:00048 def: "A protein modification that effectively converts an L-tyrosine residue to O4'-phospho-L-tyrosine." [DeltaMass:0, OMSSA:8, PubMed:10226369, PubMed:1725475, RESID:AA0039, UniMod:21#Y] 2'-[3-carboxamido-3-(trimethylammonio)propyl]-L-histidine ; MOD:00049 def: "A protein modification that effectively converts an L-histidine residue to diphthamide." [ChEBI:16692, DeltaMass:122, PubMed:15316019, PubMed:7430147, RESID:AA0040, UniMod:375#H] N-acetyl-L-alanine ; MOD:00050 def: "A protein modification that effectively converts an L-alanine residue to N-acetyl-L-alanine." [PubMed:363452, PubMed:4700463, RESID:AA0041] N-acetyl-L-aspartic acid ; MOD:00051 def: "A protein modification that effectively converts an L-aspartic acid residue to N-acetyl-L-aspartic acid." [ChEBI:21547, PubMed:1560020, PubMed:2395459, RESID:AA0042] N-acetyl-L-cysteine ; MOD:00052 def: "A protein modification that effectively converts an L-cysteine residue to N-acetyl-L-cysteine." [ChEBI:28939, PubMed:11857757, PubMed:11999733, PubMed:12175151, PubMed:14730666, PubMed:1500421, PubMed:15350136, PubMed:6725286, RESID:AA0043] N-acetyl-L-glutamic acid ; MOD:00053 def: "A protein modification that effectively converts an L-glutamic acid residue to N-acetyl-L-glutamic acid." [ChEBI:17533, PubMed:6725286, RESID:AA0044] N-acetyl-L-glutamine ; MOD:00054 def: "A protein modification that effectively converts an L-glutamine residue to N-acetyl-L-glutamine." [RESID:AA0045] N-acetylglycine ; MOD:00055 def: "A protein modification that effectively converts a glycine residue to N-acetylglycine." [PubMed:272676, PubMed:5545094, PubMed:6754709, RESID:AA0046] N-acetyl-L-isoleucine ; MOD:00056 def: "A protein modification that effectively converts an L-isoleucine residue to N-acetyl-L-isoleucine." [PubMed:8034631, RESID:AA0047] N2-acetyl-L-lysine ; MOD:00057 def: "A protein modification that effectively converts an L-lysine residue to N2-acetyl-L-lysine." [PubMed:11857757, PubMed:11999733, PubMed:12175151, PubMed:14730666, PubMed:15350136, RESID:AA0048] N-acetyl-L-methionine ; MOD:00058 def: "A protein modification that effectively converts an L-methionine to N-acetyl-L-methionine." [PubMed:7944406, RESID:AA0049] N-acetyl-L-proline ; MOD:00059 def: "A protein modification that effectively converts an L-proline residue to N-acetyl-L-proline." [PubMed:2928307, RESID:AA0050] N-acetyl-L-serine ; MOD:00060 def: "A protein modification that effectively converts an L-serine residue to N-acetyl-L-serine." [PubMed:11857757, PubMed:11999733, PubMed:12175151, PubMed:14730666, PubMed:15350136, PubMed:1880797, PubMed:2106685, PubMed:6997045, RESID:AA0051] N-acetyl-L-threonine ; MOD:00061 def: "A protein modification that effectively converts an L-threonine residue to N-acetyl-L-threonine." [PubMed:11857757, PubMed:11999733, PubMed:12175151, PubMed:14730666, PubMed:15350136, PubMed:2106685, PubMed:6997045, RESID:AA0052] N-acetyl-L-tyrosine ; MOD:00062 def: "A protein modification that effectively converts an L-tyrosine residue to N-acetyl-L-tyrosine." [PubMed:11857757, PubMed:11999733, PubMed:12175151, PubMed:14730666, PubMed:15350136, PubMed:2506074, PubMed:475783, RESID:AA0053] N-acetyl-L-valine ; MOD:00063 def: "A protein modification that effectively converts an L-valine residue to N-acetyl-L-valine." [PubMed:1735421, RESID:AA0054] N6-acetyl-L-lysine ; MOD:00064 def: "A protein modification that effectively converts an L-lysine residue to N6-acetyl-L-lysine." [ChEBI:17752, DeltaMass:214, OMSSA:24, PubMed:11369851, PubMed:11857757, PubMed:11999733, PubMed:12175151, PubMed:14730666, PubMed:15350136, PubMed:1680872, PubMed:670159, RESID:AA0055, UniMod:1#K] S-acetyl-L-cysteine ; MOD:00065 def: "A protein modification that effectively converts an L-cysteine residue to S-acetyl-L-cysteine." [PubMed:11857757, PubMed:11999733, PubMed:12175151, PubMed:1310545, PubMed:14730666, PubMed:15350136, RESID:AA0056, UniMod:1#C] N-formylglycine ; MOD:00066 def: "A protein modification that effectively converts a glycine residue to N-formylglycine." [PubMed:5139483, RESID:AA0057] N-D-glucuronoylglycine ; MOD:00067 def: "A protein modification that effectively converts a glycine residue to N-D-glucuronoylglycine." [OMSSA:50, PubMed:10858503, PubMed:12716131, PubMed:6493057, PubMed:7398618, RESID:AA0058] N-myristoylglycine ; MOD:00068 def: "A protein modification that effectively converts a glycine residue to N-myristoylglycine." [OMSSA:80, PubMed:11955007, PubMed:11955008, PubMed:1326520, PubMed:1386601, PubMed:6436247, PubMed:7543369, RESID:AA0059, UniMod:45#G] N-palmitoyl-L-cysteine ; MOD:00069 def: "A protein modification that effectively converts an L-cysteine residue to N-palmitoyl-L-cysteine." [PubMed:10896212, PubMed:4575979, PubMed:9056182, PubMed:9593755, RESID:AA0060] N-methyl-L-alanine ; MOD:00070 def: "A protein modification that effectively converts an L-alanine residue to N-methyl-L-alanine." [ChEBI:17519, PubMed:323502, PubMed:337304, PubMed:7007074, RESID:AA0061] N,N,N-trimethyl-L-alanine ; MOD:00071 def: "A protein modification that effectively converts an L-alanine residue to N,N,N-trimethyl-L-alanine." [PubMed:12590383, PubMed:332162, PubMed:3979397, PubMed:6778808, PubMed:7715456, RESID:AA0062] N-methylglycine ; MOD:00072 def: "A protein modification that effectively converts a glycine residue to N-methylglycine." [ChEBI:15611, DeltaMass:0, PubMed:1593629, RESID:AA0063] N-methyl-L-methionine ; MOD:00073 def: "A protein modification that effectively converts an L-methionine residue to N-methyl-L-methionine." [DeltaMass:169, PubMed:323502, PubMed:3298225, RESID:AA0064] N-methyl-L-phenylalanine ; MOD:00074 def: "A protein modification that effectively converts an L-phenylalanine residue to N-methyl-L-phenylalanine." [PubMed:2577730, PubMed:413571, RESID:AA0065] N,N-dimethyl-L-proline ; MOD:00075 def: "A protein modification that effectively converts an L-proline residue to N,N-dimethyl-L-proline." [ChEBI:21451, PubMed:12964758, PubMed:14570711, PubMed:193025, PubMed:3882426, PubMed:6254758, RESID:AA0066, UniMod:529] symmetric dimethyl-L-arginine ; MOD:00076 def: "A protein modification that effectively converts an L-arginine residue to symmetric dimethylarginine, N(omega),N'(omega)-dimethyl-L-arginine." [PubMed:12964758, PubMed:14570711, PubMed:15835918, PubMed:2426402, PubMed:5128665, RESID:AA0067, UniMod:36#R] asymmetric dimethyl-L-arginine ; MOD:00077 def: "A protein modification that effectively converts an L-arginine residue to asymmetric dimethylarginine, N(omega),N(omega)-dimethyl-L-arginine." [ChEBI:17929, PubMed:11152131, PubMed:12964758, PubMed:14570711, PubMed:15835918, PubMed:3032834, RESID:AA0068, UniMod:36#R] omega-N-methyl-L-arginine ; MOD:00078 def: "A protein modification that effectively converts an L-arginine residue to N(omega)-methyl-L-arginine." [PubMed:11875433, PubMed:15835918, PubMed:2426402, PubMed:5128665, RESID:AA0069] N4-methyl-L-asparagine ; MOD:00079 def: "A protein modification that effectively converts an L-asparagine residue to N4-methyl-L-asparagine." [OMSSA:75, PubMed:11875433, PubMed:2356973, PubMed:3782095, RESID:AA0070, UniMod:34#N] N5-methyl-L-glutamine ; MOD:00080 def: "A protein modification that effectively converts an L-glutamine residue to N5-methyl-L-glutamine." [ChEBI:17592, DeltaMass:166, PubMed:11118225, PubMed:11875433, PubMed:365579, RESID:AA0071] L-glutamic acid 5-methyl ester (Glu) ; MOD:00081 def: "A protein modification that effectively converts an L-glutamic acid residue to L-glutamate 5-methyl ester." [DeltaMass:167, OMSSA:17, OMSSA:70, PubMed:16888, PubMed:6300110, RESID:AA0072#GLU, UniMod:34#E] 3'-methyl-L-histidine ; MOD:00082 def: "A protein modification that effectively converts an L-histidine residue to pros-methyl-L-histidine (N-pi-methyl-L-histidine, 3'-methyl-L-histidine)." [PubMed:10660523, PubMed:11875433, PubMed:3467365, PubMed:6692818, PubMed:8076, PubMed:8645219, RESID:AA0073] N6,N6,N6-trimethyl-L-lysine ; MOD:00083 def: "A protein modification that effectively converts an L-lysine residue to N6,N6,N6-trimethyl-L-lysine." [ChEBI:17311, PubMed:12590383, PubMed:3145979, PubMed:4304194, PubMed:6778808, PubMed:7093227, PubMed:8453381, RESID:AA0074] N6,N6-dimethyl-L-lysine ; MOD:00084 def: "A protein modification that effectively converts an L-lysine residue to N6,N6-dimethyl-L-lysine." [OMSSA:36, PubMed:10550045, PubMed:12964758, PubMed:14570711, PubMed:3100523, PubMed:8453381, RESID:AA0075, UniMod:36#K] N6-methyl-L-lysine ; MOD:00085 def: "A protein modification that effectively converts an L-lysine residue to N6-methyl-L-lysine." [ChEBI:17604, DeltaMass:165, PubMed:11875433, PubMed:3926756, RESID:AA0076, UniMod:34#K] N6-palmitoyl-L-lysine ; MOD:00086 def: "A protein modification that effectively converts an L-lysine residue to N6-palmitoyl-L-lysine." [OMSSA:93, PubMed:2498336, PubMed:7801126, PubMed:7939682, RESID:AA0077, UniMod:47#K] N6-myristoyl-L-lysine ; MOD:00087 def: "A protein modification that effectively converts an L-lysine residue to N6-myristoyl-L-lysine." [OMSSA:81, PubMed:1402651, PubMed:8346241, RESID:AA0078, UniMod:45#K] O-palmitoyl-L-threonine ; MOD:00088 def: "A protein modification that effectively converts an L-threonine residue to O-palmitoyl-L-threonine." [OMSSA:95, PubMed:6642431, PubMed:8413602, RESID:AA0079, UniMod:47#T] O-palmitoyl-L-serine ; MOD:00089 def: "A protein modification that effectively converts an L-serine residue to O-palmitoyl-L-serine." [OMSSA:94, PubMed:3467339, RESID:AA0080, UniMod:47#S] L-alanine amide ; MOD:00090 def: "A protein modification that effectively converts an L-alanine residue to L-alanine amide." [PubMed:1377792, PubMed:2069951, PubMed:8472537, PubMed:952951, RESID:AA0081] L-arginine amide ; MOD:00091 def: "A protein modification that effectively converts an L-arginine residue to L-arginine amide." [PubMed:2229025, PubMed:2753890, PubMed:743209, RESID:AA0082] L-asparagine amide ; MOD:00092 def: "A protein modification that effectively converts an L-asparagine residue to L-asparagine amide." [PubMed:2753132, PubMed:279902, PubMed:3415690, RESID:AA0083] L-aspartic acid 1-amide ; MOD:00093 def: "A protein modification that effectively converts an L-aspartic acid residue to L-aspartic acid 1-amide." [PubMed:2542051, RESID:AA0084] L-cysteine amide ; MOD:00094 def: "A protein modification that effectively converts an L-cysteine residue to L-cysteine amide." [PubMed:1892838, PubMed:7149738, RESID:AA0085] L-glutamine amide ; MOD:00095 def: "A protein modification that effectively converts an L-glutamine residue to L-glutamine amide." [PubMed:7673220, PubMed:9048550, RESID:AA0086] L-glutamic acid 1-amide ; MOD:00096 def: "A protein modification that effectively converts an L-glutamic acid residue to L-glutamic acid 1-amide." [PubMed:1093875, PubMed:14550575, RESID:AA0087] glycine amide ; MOD:00097 def: "A protein modification that effectively converts a glycine residue to glycine amide." [PubMed:13591312, RESID:AA0088] L-histidine amide ; MOD:00098 def: "A protein modification that effectively converts an L-histidine residue to L-histidine amide." [PubMed:2153586, PubMed:2307683, PubMed:2839478, RESID:AA0089] L-isoleucine amide ; MOD:00099 def: "A protein modification that effectively converts an L-isoleucine residue to L-isoleucine amide." [RESID:AA0090] L-leucine amide ; MOD:00100 def: "A protein modification that effectively converts an L-leucine residue to L-leucine amide." [PubMed:2578459, RESID:AA0091] L-lysine amide ; MOD:00101 def: "A protein modification that effectively converts an L-lysine residue to L-lysine amide." [PubMed:6579533, RESID:AA0092] L-methionine amide ; MOD:00102 def: "A protein modification that effectively converts an L-methionine residue to L-methionine amide." [PubMed:4375977, RESID:AA0093] L-phenylalanine amide ; MOD:00103 def: "A protein modification that effectively converts an L-phenylalanine residue to L-phenylalanine amide." [PubMed:2905621, PubMed:8868490, RESID:AA0094] L-proline amide ; MOD:00104 def: "A protein modification that effectively converts an L-proline residue to L-proline amide." [PubMed:4982117, PubMed:5760861, RESID:AA0095] L-serine amide ; MOD:00105 def: "A protein modification that effectively converts an L-serine residue to L-serine amide." [PubMed:743209, RESID:AA0096] L-threonine amide ; MOD:00106 def: "A protein modification that effectively converts an L-threonine residue to L-threonine amide." [PubMed:1390774, RESID:AA0097] L-tryptophan amide ; MOD:00107 def: "A protein modification that effectively converts an L-tryptophan residue to L-tryptophan amide." [PubMed:3947348, RESID:AA0098] L-tyrosine amide ; MOD:00108 def: "A protein modification that effectively converts an L-tyrosine residue to L-tyrosine amide." [PubMed:1377792, PubMed:3562898, PubMed:6509012, RESID:AA0099] L-valine amide ; MOD:00109 def: "A protein modification that effectively converts an L-valine residue to L-valine amide." [PubMed:2578459, PubMed:5465996, RESID:AA0100] L-cysteine methyl disulfide ; MOD:00110 def: "A protein modification that effectively converts an L-cysteine residue to L-cysteine methyl disulfide." [OMSSA:179, PubMed:10555576, PubMed:163643, PubMed:2056535, PubMed:6381494, RESID:AA0101, UniMod:39#C] S-farnesyl-L-cysteine ; MOD:00111 def: "A protein modification that effectively converts an L-cysteine residue to S-farnesyl-L-cysteine." [DeltaMass:293, OMSSA:42, PubMed:1409665, PubMed:15609361, PubMed:1872463, PubMed:2684976, RESID:AA0102, UniMod:44#C] S-12-hydroxyfarnesyl-L-cysteine ; MOD:00112 def: "A protein modification that effectively converts an L-cysteine residue to S-12-hydroxyfarnesyl-L-cysteine." [PubMed:17790543, RESID:AA0103, UniMod:376] S-geranylgeranyl-L-cysteine ; MOD:00113 def: "A protein modification that effectively converts an L-cysteine residue to S-geranylgeranyl-L-cysteine." [DeltaMass:0, OMSSA:49, PubMed:1483450, PubMed:15609361, RESID:AA0104, UniMod:48#C] L-cysteine methyl ester ; MOD:00114 def: "A protein modification that effectively converts an L-cysteine residue to L-cysteine methyl ester." [PubMed:11875433, PubMed:1872463, RESID:AA0105, UniMod:34#C-term] S-palmitoyl-L-cysteine ; MOD:00115 def: "A protein modification that effectively converts an L-cysteine residue to S-palmitoyl-L-cysteine." [DeltaMass:303, PubMed:1872406, PubMed:3166978, PubMed:8180229, PubMed:8824274, RESID:AA0106, UniMod:47#C] S-diacylglycerol-L-cysteine ; MOD:00116 def: "A protein modification that effectively converts an L-cysteine residue to S-diacylglycerol-L-cysteine." [PubMed:10896212, PubMed:4575979, PubMed:9056182, RESID:AA0107, UniMod:377#C] S-(L-isoglutamyl)-L-cysteine ; MOD:00117 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-glutamine residue by a thioester bond with the formation of S-(L-isoglutamyl)-L-cysteine and the release of ammonia." [ChEBI:22021, DeltaMass:0, PubMed:6838833, RESID:AA0108] 2'-(S-L-cysteinyl)-L-histidine ; MOD:00118 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-histidine residue by a thioether bond to form 2'-(S-L-cysteinyl)-L-histidine." [DeltaMass:0, PubMed:6210696, RESID:AA0109] L-lanthionine (Cys-Ser) ; MOD:00119 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-serine residue by a thioether bond to form L-lanthionine." [ChEBI:21347, DeltaMass:7, RESID:AA0110#CSX] meso-lanthionine ; MOD:00120 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-serine residue by a thioether bond to form meso-lanthionine." [PubMed:15023056, PubMed:3769923, RESID:AA0111] (2S,3S,2'R)-3-methyllanthionine ; MOD:00121 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-threonine residue by a thioether bond to form (2S,3S,2'R)-3-methyllanthionine." [PubMed:3769923, RESID:AA0112] 3'-(S-L-cysteinyl)-L-tyrosine ; MOD:00122 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-tyrosine residue by a thioether bond to form 2-(S-L-cysteinyl)-L-tyrosine." [DeltaMass:0, PubMed:15917234, PubMed:2002850, RESID:AA0113] N6-carboxy-L-lysine ; MOD:00123 def: "A protein modification that effectively converts an L-lysine residue to N6-carboxy-L-lysine." [PubMed:11369851, PubMed:4436319, PubMed:637859, PubMed:7754395, RESID:AA0114, UniMod:299#K] N6-1-carboxyethyl-L-lysine ; MOD:00124 def: "A protein modification that effectively converts an L-lysine residue to N6-1-carboxyethyl-L-lysine." [PubMed:3123486, PubMed:8253186, PubMed:8421682, RESID:AA0115, UniMod:378#K] hypusine ; MOD:00125 def: "A protein modification that effectively converts an L-lysine residue to hypusine, N6-(4-amino-2-hydroxybutyl)-L-lysine." [DeltaMass:0, PubMed:6806267, PubMed:8108861, RESID:AA0116, UniMod:379#K] N6-biotinyl-L-lysine ; MOD:00126 def: "A protein modification that effectively converts an L-lysine residue to N6-biotinyl-L-lysine." [DeltaMass:305, PubMed:16109483, PubMed:3178228, PubMed:7948875, PubMed:8747466, RESID:AA0117, UniMod:3#K] N6-lipoyl-L-lysine ; MOD:00127 def: "A protein modification that effectively converts an L-lysine residue to N6-lipoyl-L-lysine." [DeltaMass:0, OMSSA:67, PubMed:3421911, PubMed:3522581, PubMed:7719855, RESID:AA0118, UniMod:42#K] N6-pyridoxal phosphate-L-lysine ; MOD:00128 def: "A protein modification that effectively converts an L-lysine residue to N6-pyridoxal phosphate-L-lysine." [DeltaMass:0, PubMed:1544460, RESID:AA0119, UniMod:46#K] N6-retinylidene-L-lysine ; MOD:00129 def: "A protein modification that effectively converts an L-lysine residue to N6-retinylidene-L-lysine, the adduct of retinal." [PubMed:6794028, PubMed:6870827, RESID:AA0120, UniMod:380#K] L-allysine ; MOD:00130 def: "A protein modification that effectively converts an L-lysine residue to L-allysine." [ChEBI:17917, DeltaMass:0, PubMed:11120890, PubMed:11332453, PubMed:358196, PubMed:5337886, PubMed:5529814, RESID:AA0121, UniMod:352#K] L-2-aminoadipic acid ; MOD:00131 def: "A protein modification that effectively converts an L-lysine residue to L-2-aminoadipic acid." [DeltaMass:353, PubMed:336041, PubMed:358196, PubMed:7419498, RESID:AA0122, UniMod:381#K] L-lysinoalanine (Lys-Ser) ; MOD:00132 def: "A protein modification that effectively crosslinks an L-serine residue and an L-lysine residue to release water and form 2-amino-6-(2-amino-2-carboxyethylamino)hexanoic acid." [DeltaMass:0, PubMed:2544544, RESID:AA0123#KSX] N6-(L-isoglutamyl)-L-lysine (Gln) ; MOD:00133 def: "A protein modification that effectively crosslinks an L-glutamine residue and an L-lysine residue by an isopeptide bond with the formation of N6-(L-isoglutamyl)-L-lysine and the release of ammonia." [ChEBI:21863, DeltaMass:0, PubMed:2461365, PubMed:5637041, PubMed:5656070, PubMed:8598899, RESID:AA0124#GLN] N6-glycyl-L-lysine ; MOD:00134 def: "A protein modification that effectively crosslinks an L-lysine residue and a glycine residue by an isopeptide bond to form N6-glycyl-L-lysine." [ChEBI:21885, RESID:AA0125] N-(L-isoaspartyl)-glycine (Asn) ; MOD:00135 def: "A protein modification that effectively crosslinks an L-asparagine residue and a glycine residue by an isopeptide bond with formation of N-(L-isoaspartyl)glycine and the release of ammonia." [ChEBI:21479, PubMed:1826288, RESID:AA0126] pyruvic acid (Cys) ; MOD:00136 def: "A protein modification that effectively converts an L-cysteine residue to pyruvic acid." [PubMed:10085076, PubMed:3042771, PubMed:8464063, RESID:AA0127#CYS, UniMod:382] L-3-phenyllactic acid ; MOD:00137 def: "A protein modification that effectively converts an L-phenylalanine residue into L-3-phenyllactic acid." [PubMed:1973541, RESID:AA0128, UniMod:7#F] 2-oxobutanoic acid ; MOD:00138 def: "A protein modification that effectively converts an L-threonine residue into 2-oxobutanoic acid." [PubMed:15023056, PubMed:1680314, PubMed:2253617, PubMed:2764678, RESID:AA0129, UniMod:385#T] N2-succinyl-L-tryptophan ; MOD:00139 def: "A protein modification that effectively converts an L-tryptophan residue to N2-succinyl-L-tryptophan." [PubMed:11857757, PubMed:12175151, PubMed:8471040, RESID:AA0130, UniMod:64#N-term] S-phycocyanobilin-L-cysteine ; MOD:00140 def: "A protein modification that effectively results from forming an adduct between a cysteine residue and the tetrapyrrole compound phycocyanobilin." [ChEBI:15617, DeltaMass:0, PubMed:16644722, PubMed:3208761, PubMed:3838747, PubMed:7918400, RESID:AA0131, UniMod:387#C] S-phycoerythrobilin-L-cysteine ; MOD:00141 def: "A protein modification that effectively results from forming an adduct between a cysteine residue and the tetrapyrrole compound phycoerythrobilin." [ChEBI:15618, PubMed:14588022, PubMed:3208761, PubMed:3838747, PubMed:8876649, RESID:AA0132, UniMod:388#C] S-phytochromobilin-L-cysteine ; MOD:00142 def: "A protein modification that effectively results from forming an adduct between a cysteine residue and the tetrapyrrole compound phytochromobilin." [ChEBI:15619, PubMed:1634523, PubMed:16593380, PubMed:3208761, PubMed:7918400, RESID:AA0133, UniMod:389#C] heme-bis-L-cysteine ; MOD:00143 def: "A protein modification that effectively results from forming an adduct between two cysteine residues and the porphyrin compound heme b, (7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-dipropanoato)iron." [ChEBI:17627, PubMed:5545094, PubMed:8827449, RESID:AA0134] heme-L-cysteine ; MOD:00144 def: "A protein modification that effectively results from forming an adduct between a cysteine residue and the porphyrin compound heme b, (7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-dipropanoato)iron." [ChEBI:17627, DeltaMass:0, PubMed:170910, PubMed:192772, PubMed:2536325, PubMed:9535866, RESID:AA0135, UniMod:390#C] tetrakis-L-cysteinyl iron ; MOD:00145 def: "A protein modification that effectively converts four L-cysteine residues iron atom to tetrakis-L-cysteinyl iron." [PubMed:1303768, PubMed:2244884, RESID:AA0136] tetrakis-L-cysteinyl diiron disulfide ; MOD:00146 def: "A protein modification that effectively converts four L-cysteine residues and a two-iron two-sulfur cluster to tetrakis-L-cysteinyl diiron disulfide." [PubMed:2123937, PubMed:6801028, PubMed:7763242, PubMed:8688437, RESID:AA0137] hexakis-L-cysteinyl triiron trisulfide ; MOD:00147 def: "A protein modification that effectively converts six L-cysteine residues and a three-iron three-sulfur cluster to hexakis-L-cysteinyl triiron trisulfide." [PubMed:3379067, PubMed:3932661, PubMed:7354058, RESID:AA0138] tris-L-cysteinyl triiron tetrasulfide ; MOD:00148 def: "A protein modification that effectively converts three L-cysteine residues and a three-iron four-sulfur cluster to tris-L-cysteinyl triiron tetrasulfide." [PubMed:10555576, PubMed:2056535, PubMed:3422475, PubMed:6848518, PubMed:7819255, PubMed:9063899, RESID:AA0139] tetrakis-L-cysteinyl tetrairon tetrasulfide ; MOD:00149 def: "A protein modification that effectively converts four L-cysteine residues and a four-iron four-sulfur cluster to tetrakis-L-cysteinyl tetrairon tetrasulfide." [PubMed:3351918, PubMed:7803404, PubMed:7819196, PubMed:932007, RESID:AA0140] L-cysteinyl-L-histidino-homocitryl molybdenum heptairon nonasulfide ; MOD:00150 def: "A protein modification that effectively converts an L-cysteine residue, an L-histidine residue, homocitric acid and a one-molybdenum seven-iron nine-sulfur cluster to L-cysteinyl-L-histidino-homocitryl molybdenum heptairon nonasulfide." [PubMed:10525412, PubMed:12215645, PubMed:12733878, PubMed:1529354, PubMed:8027059, RESID:AA0141] L-cysteinyl molybdopterin ; MOD:00151 def: "A protein modification that effectively converts an L-cysteine residue to L-cysteinyl molybdopterin." [PubMed:14527393, PubMed:7878465, PubMed:9428520, RESID:AA0142, UniMod:391#C] S-(8alpha-FAD)-L-cysteine ; MOD:00152 def: "A protein modification that effectively converts an L-cysteine residue to S'-(8alpha-FAD)-L-cystine." [PubMed:10220347, RESID:AA0143, UniMod:50#C] 3'-(8alpha-FAD)-L-histidine ; MOD:00153 def: "A protein modification that effectively converts an L-histidine residue to 3'-(8alpha-FAD)-L-histidine." [PubMed:241294, PubMed:8076, RESID:AA0144, UniMod:50#H] O4'-(8alpha-FAD)-L-tyrosine ; MOD:00154 def: "A protein modification that effectively converts an L-tyrosine residue to O4'-(8alpha-FAD)-L-tyrosine." [DeltaMass:0, PubMed:7391034, RESID:AA0145, UniMod:50#Y] 3'-hydroxylation of L-tyrosine to L-3',4'-dihydroxyphenylalanine ; MOD:00155 def: "A protein modification that effectively converts an L-tyrosine residue to L-3',4'-dihydroxyphenylalanine." [DeltaMass:0, OMSSA:194, OMSSA:64, PubMed:1610822, PubMed:1903612, PubMed:3734192, RESID:AA0146, UniMod:35#Y] oxidation of tyrosine to L-2',4',5'-topaquinone ; MOD:00156 def: "A protein modification that effectively converts an L-tyrosine residue to an L-2',4',5'-topaquinone." [ChEBI:21187, PubMed:10387067, PubMed:1457410, PubMed:1569055, PubMed:2111581, RESID:AA0147, UniMod:392#Y] oxidation of tryptophan to L-tryptophyl quinone ; MOD:00157 def: "A protein modification that effectively converts an L-tryptophan residue to an L-tryptophan quinone." [DeltaMass:0, PubMed:2028257, RESID:AA0148, UniMod:392#W] 4'-(L-tryptophan)-L-tryptophyl quinone ; MOD:00158 def: "A protein modification that effectively cross-links two L-tryptophan residues by a carbon-carbon bond to form 4'-(L-tryptophan)-L-tryptophyl quinone." [ChEBI:20251, DeltaMass:0, PubMed:2028257, RESID:AA0149] O-phosphopantetheine-L-serine ; MOD:00159 def: "A protein modification that effectively converts an L-serine residue to O-phosphopantetheine-L-serine." [DeltaMass:0, PubMed:10320345, PubMed:10997907, PubMed:12057197, PubMed:12869567, PubMed:4568609, RESID:AA0150, UniMod:49#S] N4-glycosyl-L-asparagine ; MOD:00160 def: "A protein modification that effectively converts an L-asparagine residue to an N4-glycosyl-L-asparagine." [PubMed:111247, PubMed:1694179, PubMed:5490222, RESID:AA0151#var] S-glucosyl-L-cysteine ; MOD:00161 def: "A protein modification that effectively converts an L-cysteine residue to S-glucosylated L-cysteine." [PubMed:1145128, PubMed:15279557, PubMed:5286858, RESID:AA0152, UniMod:41#C] O5-glucosylgalactosyl-L-hydroxylysine ; MOD:00162 def: "A protein modification that effectively converts an L-lysine residue to O5-glucosylgalactosyl-L-hydroxylysine." [PubMed:15149698, PubMed:4288358, PubMed:4319110, RESID:AA0153, UniMod:393] O-(N-acetylamino)galactosyl-L-serine ; MOD:00163 def: "A protein modification that effectively converts an L-serine residue to O-(N-acetylaminogalactosyl)-L-serine." [PubMed:115869, PubMed:16005634, PubMed:3086323, PubMed:8948436, PubMed:9092502, RESID:AA0154] O-(N-acetylamino)galactosyl-L-threonine ; MOD:00164 def: "A protein modification that effectively converts an L-asparagine residue to O-(N-acetylaminogalactosyl)-L-threonine." [PubMed:16005634, PubMed:1997327, PubMed:3086323, PubMed:8948436, PubMed:9092502, RESID:AA0155] 1'-mannosyl-L-tryptophan ; MOD:00165 def: "A protein modification that effectively converts an L-tryptophan residue to 1'-mannosyl-L-tryptophan." [PubMed:1482345, PubMed:16150691, RESID:AA0156] O4'-glucosyl-L-tyrosine ; MOD:00166 def: "A protein modification that effectively converts an L-tyrosine residue to O4'-glucosyl-tyrosine." [PubMed:15279557, PubMed:3181138, RESID:AA0157, UniMod:41#Y] N-asparaginyl-glycosylphosphatidylinositolethanolamine ; MOD:00167 def: "A protein modification that effectively converts an L-asparagine residue to N-asparaginyl-glycosylphosphatidylinositolethanolamine." [PubMed:1824714, PubMed:8276756, RESID:AA0158] N-aspartyl-glycosylphosphatidylinositolethanolamine ; MOD:00168 def: "A protein modification that effectively converts an L-aspartic acid residue to N-(aspart-1-yl)-glycosylphosphatidylinositolethanolamine." [PubMed:7120400, RESID:AA0159] N-cysteinyl-glycosylphosphatidylinositolethanolamine ; MOD:00169 def: "A protein modification that effectively converts an L-cysteine residue to N-cysteinyl-glycosylphosphatidylinositolethanolamine." [PubMed:2897081, RESID:AA0160] N-glycyl-glycosylphosphatidylinositolethanolamine ; MOD:00170 def: "A protein modification that effectively converts a glycine residue to N-glycyl-glycosylphosphatidylinositolethanolamine." [PubMed:2341397, RESID:AA0161] N-seryl-glycosylphosphatidylinositolethanolamine ; MOD:00171 def: "A protein modification that effectively converts an L-serine residue to N-seryl-glycosylphosphatidylinositolethanolamine." [PubMed:2111324, PubMed:8448158, RESID:AA0162] N-alanyl-glycosylphosphatidylinositolethanolamine ; MOD:00172 def: "A protein modification that effectively converts an L-alanine residue to N-alanyl-glycosylphosphatidylinositolethanolamine." [PubMed:7682556, PubMed:7744038, RESID:AA0163] N-threonyl-glycosylphosphatidylinositolethanolamine ; MOD:00173 def: "A protein modification that effectively converts an L-threonine residue to N-threonyl-glycosylphosphatidylinositolethanolamine." [RESID:AA0164] N-glycyl-glycosylsphingolipidinositolethanolamine ; MOD:00174 def: "A protein modification that effectively converts a glycine residue to N-glycyl-glycosylsphingolipidinositolethanolamine." [PubMed:12626404, PubMed:8404891, RESID:AA0165] N-seryl-glycosylsphingolipidinositolethanolamine ; MOD:00175 def: "A protein modification that effectively converts an L-serine residue to N-seryl-glycosylsphingolipidinositolethanolamine." [PubMed:12626404, PubMed:2721485, PubMed:8269952, RESID:AA0166] O-(phosphoribosyl dephospho-coenzyme A)-L-serine ; MOD:00176 def: "A protein modification that effectively converts an L-serine residue to O-(phosphoribosyl dephospho-coenzyme A)-L-serine." [PubMed:10924139, PubMed:11052675, PubMed:179809, PubMed:180526, PubMed:368065, RESID:AA0167, UniMod:395#S] omega-N-(ADP-ribosyl)-L-arginine ; MOD:00177 def: "A protein modification that effectively converts an L-argininine residue to omega-N-(ADP-ribosyl)-L-arginine." [DeltaMass:0, PubMed:15842200, PubMed:209022, PubMed:3090031, PubMed:3923473, PubMed:6582062, RESID:AA0168, UniMod:213#R] S-(ADP-ribosyl)-L-cysteine ; MOD:00178 def: "A protein modification that effectively converts an L-cysteine residue to S-(ADP-ribosyl)-L-cysteine." [DeltaMass:0, PubMed:15842200, PubMed:3863818, RESID:AA0169, UniMod:213#C] L-glutamyl 5-glycerylphosphorylethanolamine ; MOD:00179 def: "A protein modification that effectively converts an L-glutamic acid residue to L-glutamyl 5-glycerylphosphorylethanolamine." [PubMed:2511205, PubMed:2569467, PubMed:9662537, RESID:AA0170, UniMod:396#E] S-sulfo-L-cysteine ; MOD:00180 def: "A protein modification that effectively converts an L-cysteine residue to S-sulfo-L-cysteine." [PubMed:12876326, PubMed:14752058, PubMed:643076, RESID:AA0171, UniMod:40#C] O4'-sulfo-L-tyrosine ; MOD:00181 def: "A protein modification that effectively converts an L-tyrosine residue to O4'-sulfo-L-tyrosine." [DeltaMass:88, OMSSA:114, PubMed:10226369, PubMed:14752058, PubMed:2303439, PubMed:3778455, PubMed:3801003, RESID:AA0172, UniMod:40#Y] L-bromohistidine ; MOD:00182 def: "A protein modification that effectively converts an L-histidine residue to L-bromohistidine." [PubMed:2076468, PubMed:9033387, RESID:AA0173, UniMod:340#H] L-2'-bromophenylalanine ; MOD:00183 def: "A protein modification that effectively converts an L-phenylalanine residue to L-2'-bromophenylalanine." [DeltaMass:83, PubMed:2059627, PubMed:2076468, PubMed:9033387, RESID:AA0174] L-3'-bromophenylalanine ; MOD:00184 def: "A protein modification that effectively converts an L-phenylalanine residue to L-3'-bromophenylalanine." [PubMed:2076468, PubMed:9033387, RESID:AA0175] L-4'-bromophenylalanine ; MOD:00185 def: "A protein modification that effectively converts an L-phenylalanine residue to L-4'-bromophenylalanine." [PubMed:2076468, PubMed:9033387, RESID:AA0176] 3',3'',5'-triiodo-L-thyronine ; MOD:00186 def: "A protein modification that effectively substitutes an L-tyrosine residue with 3',3'',5'-triiodo-L-thyronine." [ChEBI:18258, DeltaMass:0, RESID:AA0177, UniMod:397] L-thyroxine ; MOD:00187 def: "A protein modification that effectively substitutes an L-tyrosine residue with L-thyroxine." [ChEBI:18332, PubMed:6704086, RESID:AA0178, UniMod:398] 6'-bromo-L-tryptophan ; MOD:00188 def: "A protein modification that effectively converts an L-tryptophan residue to 6'-bromo-L-tryptophan." [PubMed:12118011, PubMed:9030520, PubMed:9033387, PubMed:9434739, RESID:AA0179, UniMod:340#W] dehydroalanine (Ser) ; MOD:00189 def: "A protein modification that effectively converts an L-serine residue to dehydroalanine." [DeltaMass:0, OMSSA:140, OMSSA:164, OMSSA:96, PubMed:10220322, PubMed:1547888, PubMed:1815586, PubMed:2914619, PubMed:7947813, PubMed:8239649, RESID:AA0181#SER, UniMod:23#S] dehydrobutyrine (Thr) ; MOD:00190 def: "A protein modification that effectively converts an L-threonine residue to dehydrobutyrine." [DeltaMass:0, OMSSA:141, OMSSA:164, OMSSA:97, PubMed:1547888, PubMed:3769923, RESID:AA0182, UniMod:23#T] (Z)-2,3-didehydrotyrosine ; MOD:00191 def: "A protein modification that effectively converts L-tyrosine to (Z)-2,3-didehydrotyrosine." [PubMed:1347277, PubMed:9631087, RESID:AA0183] L-serine 5-imidazolinone glycine ; MOD:00192 def: "A protein modification that effectively crosslinks an L-serine residue and a glycine residue to form L-serine 5-imidazolinone glycine." [ChEBI:21393, PubMed:1347277, PubMed:9631087, RESID:AA0184] L-3-oxoalanine (Cys) ; MOD:00193 def: "A protein modification that effectively converts an L-cysteine residue to L-oxoalanine." [DeltaMass:350, PubMed:14563551, PubMed:7628016, PubMed:8681943, PubMed:9478923, RESID:AA0185#CYS, UniMod:402#C] lactic acid ; MOD:00194 def: "A protein modification that effectively converts an L-serine residue to an amino-terminal lactic acid." [PubMed:7607233, RESID:AA0186, UniMod:403#S] L-alanine 5-imidazolinone glycine ; MOD:00195 def: "A protein modification that effectively crosslinks an L-alanine residue and a glycine residue to form L-alanine 5-imidazolinone glycine." [PubMed:10220322, RESID:AA0187] L-cysteine 5-imidazolinone glycine ; MOD:00196 def: "A protein modification that effectively crosslinks an L-cysteine residue and a glycine residue to form L-cysteine 5-imidazolinone glycine." [PubMed:1537807, RESID:AA0188] 2-imino-glutamine 5-imidazolinone glycine ; MOD:00197 def: "A protein modification that effectively crosslinks an L-glutamine residue and a glycine residue to form 2-imino-glutamine 5-imidazolinone glycine." [PubMed:11050230, PubMed:11209050, RESID:AA0189] D-alanine (Ala) ; MOD:00198 def: "A protein modification that effectively converts an L-alanine residue to D-alanine." [PubMed:15023056, PubMed:7287302, PubMed:7961627, RESID:AA0191#ALA] D-allo-isoleucine ; MOD:00199 def: "A protein modification that effectively converts an L-isoleucine residue to a D-allo-isoleucine." [ChEBI:30007, PubMed:8223491, RESID:AA0192] D-methionine ; MOD:00200 def: "A protein modification that effectively converts an L-methionine residue to D-methionine." [ChEBI:29984, PubMed:16033333, PubMed:2542051, RESID:AA0193] D-phenylalanine ; MOD:00201 def: "A protein modification that effectively converts an L-phenylalanine residue to D-phenylalanine." [ChEBI:29996, PubMed:1548227, PubMed:1644179, PubMed:2597281, RESID:AA0194] D-serine (Ser) ; MOD:00202 def: "A protein modification that effectively converts an L-serine residue to D-serine." [PubMed:7973665, RESID:AA0195#SER] D-asparagine ; MOD:00203 def: "A protein modification that effectively converts an L-asparagine residue to D-asparagine." [ChEBI:29957, PubMed:1859408, RESID:AA0196] D-leucine ; MOD:00204 def: "A protein modification that effectively converts an L-leucine residue to D-leucine." [ChEBI:30005, PubMed:10461743, PubMed:12135762, PubMed:1358533, PubMed:1548227, RESID:AA0197] D-tryptophan ; MOD:00205 def: "A protein modification that effectively converts an L-tryptophan residue to D-tryptophan." [ChEBI:29955, PubMed:8910408, RESID:AA0198] L-isoglutamyl-polyglycine ; MOD:00206 def: "A protein modification that effectively converts an L-glutamic acid residue to L-isoglutamyl-polyglycine." [ChEBI:21343, PubMed:10074368, PubMed:16368691, PubMed:7992051, RESID:AA0201] L-isoglutamyl-polyglutamic acid ; MOD:00207 def: "A protein modification that effectively converts an L-glutamic acid residue to isoglutamyl-polyglutamic acid, forming an isopeptide bond with a polyglutamic acid." [PubMed:10747868, PubMed:1680872, RESID:AA0202] O4'-(phospho-5'-adenosine)-L-tyrosine ; MOD:00208 def: "A protein modification that effectively crosslinks an L-tyrosine residue and 5'-phosphoadenosine through a phosphodiester bond to form O4'-(phospho-5'-adenosine)-L-tyrosine." [DeltaMass:0, PubMed:5543675, RESID:AA0203, UniMod:405#Y] S-(2-aminovinyl)-D-cysteine (Cys-Ser) ; MOD:00209 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-serine residue by a thioether bond to form S-(2-aminovinyl)-D-cysteine." [PubMed:3181159, PubMed:3769923, RESID:AA0204#SER] L-cysteine sulfenic acid ; MOD:00210 def: "A protein modification that effectively monooxygenates an L-cysteine residue to L-cysteine sulfenic acid." [DeltaMass:41, OMSSA:193, PubMed:10964927, PubMed:2501303, PubMed:8756456, PubMed:9214307, PubMed:9586994, PubMed:9587003, RESID:AA0205, UniMod:35#C] S-(glycyl)-L-cysteine (Cys-Gly) ; MOD:00211 def: "A protein modification that effectively crosslinks an L-cysteine residue and a glycine residue by a thioester bond to form S-glycyl-L-cysteine." [ChEBI:22050, PubMed:3306404, RESID:AA0206] S-4-hydroxycinnamyl-L-cysteine ; MOD:00212 def: "A protein modification that effectively converts an L-cysteine residue to S-4-hydroxycinnamyl-L-cysteine." [PubMed:7947803, PubMed:7981196, RESID:AA0207, UniMod:407] chondroitin sulfate D-glucuronosyl-D-galactosyl-D-galactosyl-D-xylosyl-L-serine ; MOD:00213 def: "A protein modification that effectively cross-links an L-serine residue to the polymer chondroitin sulfate by a D-glucuronosyl-D-galactosyl-D-galactosyl-D-xylosyl tetrasaccharide." [PubMed:1794445, PubMed:1898736, PubMed:3472204, RESID:AA0208] dermatan 4-sulfate D-glucuronosyl-D-galactosyl-D-galactosyl-D-xylosyl-L-serine ; MOD:00214 def: "A protein modification that effectively cross-links an L-serine residue to the polymer dermatan 4-sulfate by a D-glucuronosyl-D-galactosyl-D-galactosyl-D-xylosyl tetrasaccharide." [PubMed:2914936, PubMed:3472204, RESID:AA0209] heparan sulfate D-glucuronosyl-D-galactosyl-D-galactosyl-D-xylosyl-L-serine ; MOD:00215 def: "A protein modification that effectively cross-links an L-serine residue to the polymer heparan sulfate by a D-glucuronosyl-D-galactosyl-D-galactosyl-D-xylosyl tetrasaccharide." [PubMed:3472204, RESID:AA0210] N6-formyl-L-lysine ; MOD:00216 def: "A protein modification that effectively converts an L-lysine residue to N6-formyl-L-lysine." [OMSSA:43, PubMed:15799070, RESID:AA0211, UniMod:122#K] O4-arabinosyl-L-hydroxyproline ; MOD:00217 def: "A protein modification that effectively converts an L-proline residue to O4-arabinosyl-L-hydroxyproline." [DeltaMass:0, PubMed:666730, PubMed:7852316, RESID:AA0212, UniMod:408] O-(phospho-5'-RNA)-L-serine ; MOD:00218 def: "A protein modification that effectively crosslinks an L-serine residue and the 5'-end of RNA through a phosphodiester to form O4'-(phospho-5'-RNA)-L-serine." [PubMed:1705009, RESID:AA0213] L-citrulline ; MOD:00219 def: "A protein modification that effectively converts an L-arginine residue to L-citrulline." [DeltaMass:0, OMSSA:33, PubMed:2466844, RESID:AA0214, UniMod:7#R] 4-hydroxy-L-arginine ; MOD:00220 def: "A protein modification that effectively converts an L-arginine residue to a 4-hydroxy-L-arginine." [PubMed:10966817, PubMed:7650037, RESID:AA0215] N-(L-isoaspartyl)-L-cysteine ; MOD:00221 def: "A protein modification that effectively crosslinks L-aspartic acid and L-cysteine residues via an isopeptide bond to form N-(L-isoaspartyl)-L-cysteine." [PubMed:8286361, RESID:AA0216] 2'-alpha-mannosyl-L-tryptophan ; MOD:00222 def: "A protein modification that effectively converts an L-tryptophan residue to 2'-alpha-mannosyl-L-tryptophan." [PubMed:15279557, PubMed:7547911, PubMed:7947762, RESID:AA0217, UniMod:41#W] N6-mureinyl-L-lysine ; MOD:00223 def: "A protein modification that effectively converts an L-lysine residue to N6-mureinyl-L-lysine." [PubMed:4261992, RESID:AA0218] 1-chondroitin sulfate-L-aspartic acid ester ; MOD:00224 def: "A protein modification that effectively converts an L-aspartic acid residue to 1-chondroitin sulfate-L-aspartic acid ester" [PubMed:1898736, RESID:AA0219] S-(6-FMN)-L-cysteine ; MOD:00225 def: "A protein modification that effectively converts an L-cysteine residue to S-(6-FMN)-L-cysteine." [PubMed:10869173, PubMed:1551870, PubMed:620783, RESID:AA0220, UniMod:409#C] 1'-(8alpha-FAD)-L-histidine ; MOD:00226 def: "A protein modification that effectively converts an L-histidine residue to 1'-(8alpha-FAD)-L-histidine." [DeltaMass:0, PubMed:10585424, PubMed:1396672, PubMed:4339951, PubMed:9261083, RESID:AA0221, UniMod:50#H] omega-N-phospho-L-arginine ; MOD:00227 def: "A protein modification that effectively converts an L-arginine residue to omega-N-phospho-L-arginine." [PubMed:8300603, RESID:AA0222, UniMod:21#R] S-diphytanylglycerol diether-L-cysteine ; MOD:00228 def: "A protein modification that effectively converts an L-cysteine residue to S-diphytanylglycerol diether-L-cysteine." [PubMed:7797461, PubMed:8195126, RESID:AA0223, UniMod:410] alpha-1-microglobulin-Ig alpha complex chromophore ; MOD:00229 def: "A protein modification that effectively converts two L-cysteine residues to form alpha-1-microglobulin-Ig alpha complex chromophore." [PubMed:11058759, PubMed:11877257, PubMed:7506257, PubMed:7535251, RESID:AA0224] bis-L-cysteinyl bis-L-histidino diiron disulfide ; MOD:00230 def: "A protein modification that effectively converts two L-cysteine residues, two L-histidine residues and a two-iron two-sulfur cluster to bis-L-cysteinyl bis-L-histidino diiron disulfide." [PubMed:2765515, PubMed:9651245, RESID:AA0225] hexakis-L-cysteinyl hexairon hexasulfide ; MOD:00231 def: "A protein modification that effectively converts six L-cysteine residues and a six-iron six-sulfur cluster to hexakis-L-cysteinyl hexairon hexasulfide." [PubMed:1311311, PubMed:1318833, RESID:AA0226] N6-(phospho-5'-adenosine)-L-lysine ; MOD:00232 def: "A protein modification that effectively crosslinks an L-lysine residue and 5'-phosphoadenosine through a phosphoramide ester bond to form N6-(phospho-5'-adenosine)-L-lysine." [DeltaMass:316, PubMed:3882425, PubMed:4944632, RESID:AA0227, UniMod:405#K] N6-(phospho-5'-guanosine)-L-lysine ; MOD:00233 def: "A protein modification that effectively crosslinks an L-lysine residue and 5'-phosphoguanosine through a phosphoramide ester bond to form N6-(phospho-5'-guanosine)-L-lysine." [DeltaMass:304, PubMed:6092377, PubMed:6264433, RESID:AA0228, UniMod:413#K] L-cysteine glutathione disulfide ; MOD:00234 def: "A protein modification that effectively converts an L-cysteine residue to S-glutathionyl-L-cysteine." [ChEBI:21264, DeltaMass:0, OMSSA:51, PubMed:3083866, PubMed:8344916, RESID:AA0229, UniMod:55] S-nitrosyl-L-cysteine ; MOD:00235 def: "A protein modification that effectively converts an L-cysteine residue to S-nitrosyl-L-cysteine." [PubMed:10442087, PubMed:11562475, PubMed:15688001, PubMed:8626764, PubMed:8637569, RESID:AA0230, UniMod:275] N4-(ADP-ribosyl)-L-asparagine ; MOD:00236 def: "A protein modification that effectively converts an L-asparagine residue to N4-(ADP-ribosyl)-L-asparagine." [PubMed:15842200, PubMed:2498316, RESID:AA0231, UniMod:213#N] L-beta-methylthioaspartic acid ; MOD:00237 def: "A protein modification that effectively converts an L-aspartic acid residue to L-beta-methylthioaspartic acid." [DeltaMass:61, OMSSA:13, OMSSA:26, PubMed:15473684, PubMed:8844851, RESID:AA0232, UniMod:39#D] 5'-(N6-L-lysine)-L-topaquinone ; MOD:00238 def: "A protein modification that effectively cross-links an L-lysine residue and an L-tyrosine residue by a carbon-nitrogen bond to form 5'-(N6-L-lysine)-L-topaquinone." [PubMed:8688089, RESID:AA0233] S-methyl-L-cysteine ; MOD:00239 def: "A protein modification that effectively converts an L-cysteine residue to S-methyl-L-cysteine." [PubMed:10660523, PubMed:11875433, PubMed:1339288, RESID:AA0234, UniMod:34#C] 4-hydroxy-L-lysine ; MOD:00240 def: "A protein modification that effectively converts an L-lysine residue to 4-hydroxy-L-lysine." [PubMed:4005040, RESID:AA0235] N4-hydroxymethyl-L-asparagine ; MOD:00241 def: "A protein modification that effectively converts an L-asparagine residue to N4-hydroxymethyl-L-asparagine." [RESID:AA0236, UniMod:414] O-(ADP-ribosyl)-L-serine ; MOD:00242 def: "A protein modification that effectively converts an L-serine residue to O-(ADP-ribosyl)-L-serine." [PubMed:15842200, PubMed:3141412, RESID:AA0237, UniMod:213#S] L-cysteine oxazole-4-carboxylic acid ; MOD:00243 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-serine residue to form L-cysteine oxazole-4-carboxylic acid." [PubMed:8183941, PubMed:8895467, RESID:AA0238] L-cysteine oxazoline-4-carboxylic acid ; MOD:00244 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-serine residue to form L-cysteine oxazoline-4-carboxylic acid." [PubMed:1880060, RESID:AA0239] glycine oxazole-4-carboxylic acid ; MOD:00245 def: "A protein modification that effectively crosslinks a glycine residue and an L-serine residue to form glycine oxazole-4-carboxylic acid." [PubMed:8183941, PubMed:8895467, RESID:AA0240] glycine thiazole-4-carboxylic acid ; MOD:00246 def: "A protein modification that effectively crosslinks an L-cysteine residue and a glycine residue to form glycine thiazole-4-carboxylic acid." [ChEBI:21276, PubMed:8183941, PubMed:8895467, RESID:AA0241] L-serine thiazole-4-carboxylic acid ; MOD:00247 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-serine residue to form L-serine thiazole-4-carboxylic acid." [PubMed:8183941, PubMed:8895467, RESID:AA0242] L-phenylalanine thiazole-4-carboxylic acid ; MOD:00248 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-phenylalanine residue to form L-phenylalanine thiazole-4-carboxylic acid." [PubMed:1880060, RESID:AA0243] L-cysteine thiazole-4-carboxylic acid ; MOD:00249 def: "A protein modification that effectively crosslinks two L-cysteine residues to form L-cysteine thiazole-4-carboxylic acid." [PubMed:1880060, RESID:AA0244] L-lysine thiazole-4-carboxylic acid ; MOD:00250 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-lysine residue to form L-lysine thiazole-4-carboxylic acid." [PubMed:1880060, RESID:AA0245] O-(phospho-5'-DNA)-L-serine ; MOD:00251 def: "A protein modification that effectively crosslinks an L-serine residue and the 5'-end of DNA through a phosphodiester bond to form O-(phospho-5'-DNA)-L-serine." [PubMed:7142163, PubMed:7265205, RESID:AA0246] keratan sulfate D-glucuronosyl-D-galactosyl-D-galactosyl-D-xylosyl-L-threonine ; MOD:00252 def: "A protein modification that effectively cross-links an L-threonine residue to the polymer keratan sulfate by a D-glucuronosyl-D-galactosyl-D-galactosyl-D-xylosyl tetrasaccharide." [PubMed:1417734, PubMed:3472204, RESID:AA0247] L-selenocysteinyl molybdenum bis(molybdopterin guanine dinucleotide) (Sec) ; MOD:00253 def: "A protein modification that effectively converts an L-selenocysteine residue to L-selenocysteinyl molybdenum bis(molybdopterin guanine dinucleotide)." [PubMed:14235557, PubMed:2211698, PubMed:8052647, PubMed:9036855, RESID:AA0248#SEC, UniMod:415] O4'-(phospho-5'-RNA)-L-tyrosine ; MOD:00254 def: "A protein modification that effectively crosslinks an L-tyrosine residue and the 5'-end of RNA through a phosphodiester to form O4'-(phospho-5'-RNA)-L-tyrosine." [PubMed:1702164, PubMed:209034, PubMed:217003, PubMed:6264310, RESID:AA0249] 3-(3'-L-histidyl)-L-tyrosine ; MOD:00255 def: "A protein modification that effectively cross-links an L-histidine residue and an L-tyrosine residue by a carbon-nitrogen bond to form 3-(3'-L-histidyl)-L-tyrosine." [PubMed:9144772, RESID:AA0250] L-methionine sulfone ; MOD:00256 def: "A protein modification that dioxygenates an L-methionine residue to L-methionine sulfone." [DeltaMass:205, OMSSA:115, PubMed:12686488, PubMed:7786407, PubMed:7791219, PubMed:9252331, RESID:AA0251, UniMod:425#M] dipyrrolylmethanemethyl-L-cysteine ; MOD:00257 def: "A protein modification that effectively converts an L-cysteine residue to dipyrrolylmethanemethyl-L-cysteine." [PubMed:3042456, PubMed:3196304, PubMed:3421931, PubMed:8727319, RESID:AA0252, UniMod:416] S-(2-aminovinyl)-3-methyl-D-cysteine ; MOD:00258 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-threonine residue by a thioether bond to form S-(2-aminovinyl)-3-methyl-D-cysteine." [PubMed:9119018, RESID:AA0253] O4'-(phospho-5'-DNA)-L-tyrosine ; MOD:00259 def: "A protein modification that effectively crosslinks an L-tyrosine residue and the 5'-end of DNA through a phosphodiester bond to form O4'-(phospho-5'-DNA)-L-tyrosine." [PubMed:1861973, PubMed:2940511, PubMed:3684578, RESID:AA0254] O-(phospho-5'-DNA)-L-threonine ; MOD:00260 def: "A protein modification that effectively crosslinks an L-threonine residue and the 5'-end of DNA through a phosphodiester bond to form O-(phospho-5'-DNA)-L-threonine." [PubMed:3081736, RESID:AA0255] O4'-(phospho-5'-uridine)-L-tyrosine ; MOD:00261 def: "A protein modification that effectively crosslinks an L-tyrosine residue and 5'-phosphouridine through a phosphodiester bond to form O4'-(phospho-5'-uridine)-L-tyrosine." [DeltaMass:0, PubMed:11467524, PubMed:2885322, RESID:AA0256, UniMod:417#Y] N-(L-glutamyl)-L-tyrosine ; MOD:00262 def: "A protein modification that effectively forms a peptide bond between a C-terminal L-glutamic acid residue and a free L-tyrosine." [ChEBI:21477, PubMed:6387372, PubMed:8093886, RESID:AA0257] S-phycoviolobilin-L-cysteine ; MOD:00263 def: "A protein modification that effectively results from forming an adduct between a cysteine residue and the tetrapyrrole compound phycoviolobilin." [PubMed:2106585, PubMed:3208761, RESID:AA0258, UniMod:387] phycoerythrobilin-bis-L-cysteine ; MOD:00264 def: "A protein modification that effectively results from forming an adduct between two cysteine residues and the tetrapyrrole compound phycoerythrobilin." [PubMed:3208761, PubMed:3838747, RESID:AA0259] phycourobilin-bis-L-cysteine ; MOD:00265 def: "A protein modification that effectively results from forming an adduct between two cysteine residues and the tetrapyrrole compound phycourobilin." [PubMed:3208761, PubMed:3838665, PubMed:3838747, PubMed:8876649, RESID:AA0260] N-L-glutamyl-poly-L-glutamic acid ; MOD:00266 def: "A protein modification that effectively forms a peptide bond between a C-terminal L-glutamic acid residue and one or more free L-glutamic acid molecules to form N-(L-glutamyl)-poly-L-glutamic acid." [PubMed:2570347, PubMed:328274, RESID:AA0261] L-cysteine sulfinic acid ; MOD:00267 def: "A protein modification that effectively dioxygenates an L-cysteine residue to L-cysteine sulfinic acid." [ChEBI:16345, OMSSA:162, PubMed:12686488, PubMed:9252331, PubMed:9586994, RESID:AA0262, UniMod:425#C] L-3',4',5'-trihydroxyphenylalanine ; MOD:00268 def: "A protein modification that effectively converts an L-tyrosine residue to L-3',4',5'-trihydroxyphenylalanine." [DeltaMass:0, PubMed:12686488, PubMed:12771378, PubMed:8554314, PubMed:9252331, PubMed:9434739, RESID:AA0263, UniMod:425#Y] O-(sn-1-glycerophosphoryl)-L-serine ; MOD:00269 def: "A protein modification that effectively converts an L-serine residue to O-(sn-1-glycerophosphoryl)-L-serine." [PubMed:8645220, RESID:AA0264, UniMod:419#S] 1-thioglycine (internal) ; MOD:00270 def: "A protein modification that effectively converts a glycine residue to an internal 1-thioglycine." [PubMed:11463785, PubMed:9367957, RESID:AA0265#INT] heme P460-bis-L-cysteine-L-tyrosine ; MOD:00271 def: "A protein modification that effectively results from forming an adduct between two cysteine residues, the C-3' of a tyrosine residue, and the porphyrin compound heme b, (7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-dipropanoato)iron." [PubMed:8325841, PubMed:9095195, RESID:AA0266] O-(phospho-5'-adenosine)-L-threonine ; MOD:00272 def: "A protein modification that effectively crosslinks an L-threonine residue and 5'-phosphoadenosine through a phosphodiester bond to form O-(phospho-5'-adenosine)-L-threonine." [PubMed:2989287, PubMed:8917428, RESID:AA0267, UniMod:405#T] tris-L-cysteinyl L-cysteine persulfido bis-L-glutamato L-histidino tetrairon disulfide trioxide ; MOD:00273 def: "A protein modification that effectively converts four L-cysteine residues, two L-glutamic acid residues, an L-histidine residue and a four-iron three-sulfur three-oxygen cluster to tris-L-cysteinyl L-cysteine persulfido bis-L-glutamato L-histidino tetrairon disulfide trioxide." [PubMed:12764602, RESID:AA0268] L-cysteine persulfide ; MOD:00274 def: "A protein modification that effectively replaces the hydrogen atom of a cysteine sulfanyl group with a sulfanyl group, forming a disulfanyl group, and converting an L-cysteine residue to L-cysteine persulfide." [ChEBI:28839, PubMed:15096637, PubMed:4276457, PubMed:8161529, RESID:AA0269, UniMod:421] 3'-(1'-L-histidyl)-L-tyrosine ; MOD:00275 def: "A protein modification that effectively cross-links an L-histidine residue and an L-tyrosine residue by a carbon-nitrogen bond to form 3'-(1'-L-histidyl)-L-tyrosine." [ChEBI:19837, PubMed:10338009, RESID:AA0270] heme P460-bis-L-cysteine-L-lysine ; MOD:00276 def: "A protein modification that effectively results from forming an adduct between two cysteine residues, a lysine residue, and the porphyrin compound heme b, (7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-dipropanoato)iron." [PubMed:12709052, PubMed:9237682, RESID:AA0271] 5-methyl-L-arginine ; MOD:00277 def: "A protein modification that effectively converts an L-arginine residue to 5-methyl-L-arginine." [PubMed:10660523, PubMed:11875433, PubMed:9367957, RESID:AA0272] 2-methyl-L-glutamine ; MOD:00278 def: "A protein modification that effectively converts an L-glutamine residue to 2-methyl-L-glutamine." [PubMed:10660523, PubMed:11875433, PubMed:9367957, RESID:AA0273] N-pyruvic acid 2-iminyl-L-cysteine ; MOD:00279 def: "A protein modification that effectively converts an Lcysteline residue to N-pyruvic acid 2-iminyl-L-cysteine." [PubMed:1388164, RESID:AA0274, UniMod:422#C] N-pyruvic acid 2-iminyl-L-valine ; MOD:00280 def: "A protein modification that effectively converts an L-valine residue to N-pyruvic acid 2-iminyl-L-valine." [PubMed:2071591, RESID:AA0275, UniMod:422#V] 3'-heme-L-histidine ; MOD:00281 def: "A protein modification that effectively results from forming an adduct between the pros nitrogen of a histidine residue and the porphyrin compound heme b, (7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-dipropanoato)iron." [PubMed:12119398, PubMed:12429096, PubMed:12486054, PubMed:9712585, RESID:AA0276] S-selenyl-L-cysteine ; MOD:00282 def: "A protein modification that effectively converts an L-cysteine residue to S-selenyl-L-cysteine." [PubMed:10430865, PubMed:10966817, PubMed:11827487, PubMed:12716131, PubMed:14594807, RESID:AA0277, UniMod:423#C] N6-propylamino-poly(propylmethylamino)-propyldimethylamine-L-lysine ; MOD:00283 def: "A protein modification that effectively converts an L-lysine residue to an N6-propylamino-poly(propylmethylamino)-propyldimethylamine-L-lysine." [PubMed:10550045, PubMed:11349130, RESID:AA0278] dihydroxyheme-L-aspartate ester-L-glutamate ester ; MOD:00284 def: "A protein modification that effectively results from forming an adduct between an aspartic acid residue, a glutamic acid residue, and the porphyrin compound heme b, (7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-dipropanoato)iron." [PubMed:10447690, RESID:AA0279] dihydroxyheme-L-aspartate ester-L-glutamate ester-L-methionine sulfonium ; MOD:00285 def: "A protein modification that effectively results from forming an adduct between an aspartic acid residue, a glutamic acid residue, a methionine residue (forming a sulfonium ether), and the porphyrin compound heme b, (7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-dipropanoato)iron." [PubMed:10447690, PubMed:10480885, PubMed:1320128, PubMed:7840679, RESID:AA0280] L-cysteinyl molybdenum bis(molybdopterin guanine dinucleotide) ; MOD:00286 def: "A protein modification that effectively converts an L-cysteine residue to L-cysteinyl molybdenum bis(molybdopterin guanine dinucleotide)." [RESID:AA0281, UniMod:424#C] (2S,3R,4S)-3,4-dihydroxyproline ; MOD:00287 def: "A protein modification that effectively converts an L-proline residue to a (2S,3R,4S)-3,4-dihydroxyproline." [DeltaMass:0, PubMed:12686488, RESID:AA0282, UniMod:425#P] pyrroloquinoline quinone ; MOD:00288 def: "A protein modification that effectively doubly cross-links an L-glutamic acid residue and an L-tyrosine residue with a carbon-carbon bond and a carbon-nitrogen bond to form pyrroloquinoline quinone." [ChEBI:18315, PubMed:1310505, PubMed:7665488, RESID:AA0283] tris-L-cysteinyl L-N1'-histidino tetrairon tetrasulfide ; MOD:00289 def: "A protein modification that effectively converts three L-cysteine residues, an L-histidine residue and a four-iron four-sulfur cluster to tris-L-cysteinyl L-N1'-histidino tetrairon tetrasulfide." [PubMed:9836629, RESID:AA0284] tris-L-cysteinyl L-N3'-histidino tetrairon tetrasulfide ; MOD:00290 def: "A protein modification that effectively converts three L-cysteine residues, an L-histidine residue and a four-iron four-sulfur cluster to tris-L-cysteinyl L-N3'-histidino tetrairon tetrasulfide." [PubMed:7854413, RESID:AA0285] tris-L-cysteinyl L-aspartato tetrairon tetrasulfide ; MOD:00291 def: "A protein modification that effectively converts three L-cysteine residues, an L-aspartic acid residue and a four-iron four-sulfur cluster to tris-L-cysteinyl L-aspartato tetrairon tetrasulfide." [PubMed:7819255, PubMed:9283079, RESID:AA0286] N6-pyruvic acid 2-iminyl-L-lysine ; MOD:00292 def: "A protein modification that effectively converts an L-lysine residue to N6-pyruvic acid 2-iminyl-L-lysine." [PubMed:1463470, PubMed:7853400, PubMed:9047371, RESID:AA0287, UniMod:422#K] tris-L-cysteinyl L-serinyl tetrairon tetrasulfide ; MOD:00293 def: "A protein modification that effectively converts three L-cysteine residues, an L-serine residue and a four-iron four-sulfur cluster to tris-L-cysteinyl L-serinyl tetrairon tetrasulfide." [RESID:AA0288] bis-L-cysteinyl L-N3'-histidino L-serinyl tetrairon tetrasulfide ; MOD:00294 def: "A protein modification that effectively converts two L-cysteine residues, an L-histidine residues, an L-serine residue and a four-iron four-sulfur cluster to bis-L-cysteinyl L-N3'-histidino L-serinyl tetrairon tetrasulfide." [RESID:AA0289] O-octanoyl-L-serine ; MOD:00295 def: "A protein modification that effectively converts an L-serine residue to O-octanoyl-L-serine." [PubMed:10604470, PubMed:12716131, RESID:AA0290, UniMod:426#S] O-D-glucuronosyl-L-serine ; MOD:00296 def: "A protein modification that effectively converts an L-serine residue to O-D-glucuronosyl-L-serine." [PubMed:10858503, PubMed:12716131, PubMed:7398618, RESID:AA0291, UniMod:54#S] tris-L-cysteinyl L-cysteine persulfido bis-L-glutamato L-histidino nickel triiron disulfide trioxide ; MOD:00297 def: "A protein modification that effectively converts four L-cysteine residues, two L-glutamic acid residues, an L-histidine residue and a three-iron three-sulfur three-oxygen cluster to tris-L-cysteinyl L-cysteine persulfido bis-L-glutamato L-histidino nickel triiron disulfide trioxide." [RESID:AA0292] tris-L-cysteinyl L-cysteine persulfido L-glutamato L-histidino L-serinyl nickel triiron disulfide trioxide ; MOD:00298 def: "A protein modification that effectively converts four L-cysteine residues, an L-glutamic acid residue, an L-histidine residue, an L-serine residue and a one-nickel three-iron three-sulfur three-oxygen cluster to tris-L-cysteinyl L-cysteine persulfido L-glutamato L-histidino L-serinyl nickel triiron disulfide trioxide." [PubMed:2550436, RESID:AA0293] N6-(L-isoaspartyl)-L-lysine (Asn) ; MOD:00299 def: "A protein modification that effectively crosslinks an L-asparagine residue and an L-lysine residue by an isopeptide bond with the formation of N6-(L-isoaspartyl)-L-lysine and the release of ammonia." [ChEBI:21862, DeltaMass:0, PubMed:11000116, PubMed:6503713, RESID:AA0294] L-glutamyl-5-poly(ADP-ribose) ; MOD:00300 def: "A protein modification that effectively converts an L-glutamic acid residue to L-glutamyl-5-poly(ADP-ribose)." [DeltaMass:0, PubMed:11246023, PubMed:15842200, PubMed:8533153, RESID:AA0295, UniMod:213#E] O-(N-acetylglucosamine-1-phosphoryl)-L-serine ; MOD:00301 def: "A protein modification that effectively converts an L-serine residue to O-(N-acetylglucosamine-1-phosphoryl)-L-serine." [DeltaMass:0, PubMed:6438439, PubMed:6993483, PubMed:8631906, RESID:AA0296, UniMod:428] O-(phosphoglycosyl-D-mannose-1-phosphoryl)-L-serine ; MOD:00302 def: "A protein modification that effectively converts an L-serine residue to O-(phosphoglycosyl-D-mannose-1-phosphoryl)-L-serine." [PubMed:10037765, PubMed:15649890, RESID:AA0297, UniMod:429] heptakis-L-histidino tetracopper mu4-sulfide hydroxide ; MOD:00303 def: "A protein modification that effectively converts seven L-histidinine residues and a four-copper one-sulfur one-hydroxide cluster to heptakis-L-histidino tetracopper mu4-sulfide hydroxide." [PubMed:11024061, PubMed:11041839, RESID:AA0298] L-leucine methyl ester ; MOD:00304 def: "A protein modification that effectively converts an L-leucine residue to L-leucine methyl ester." [PubMed:10191253, PubMed:11875433, PubMed:8206937, RESID:AA0299, UniMod:34#C-term] hexakis-L-cysteinyl L-serinyl octairon heptasulfide ; MOD:00305 def: "A protein modification that effectively converts six L-cysteine residues, an L-serine residue and a eight-iron seven-sulfur cluster to hexakis-L-cysteinyl L-serinyl octairon heptasulfide." [PubMed:10525412, PubMed:12215645, PubMed:9063865, RESID:AA0300] residues isobaric at 113.084064 Da ; MOD:00306 def: "Natural or modified residues with a mass of 113.084064 Da." [PubMed:10523135, RESID:AA0301] L-aspartimide ; MOD:00307 def: "A protein modification that effectively cyclizes an L-asparagine residue to form a carboxyl-terminal L-aspartimide." [DeltaMass:18, PubMed:12771378, PubMed:2378679, PubMed:7662664, PubMed:7988548, PubMed:9309583, RESID:AA0302, UniMod:23#N] L-glutamimide ; MOD:00308 def: "A protein modification that effectively cyclizes an L-glutamine residue to form a carboxyl-terminal L-glutamimide." [PubMed:12771378, PubMed:14593103, RESID:AA0303, UniMod:23#Q] L-beta-carboxyaspartic acid ; MOD:00309 def: "A protein modification that effectively converts an L-aspartic acid residue to L-beta-carboxyaspartic acid." [OMSSA:47, PubMed:6390094, PubMed:7138832, PubMed:7457858, PubMed:8135347, RESID:AA0304, UniMod:299#D] N5-methyl-L-arginine ; MOD:00310 def: "A protein modification that effectively converts an L-arginine residue to N5-methyl-L-arginine." [PubMed:11875433, PubMed:9792625, PubMed:9873020, RESID:AA0305] L-cysteine coenzyme A disulfide ; MOD:00311 def: "A protein modification that effectively converts an L-cysteine residue to L-cysteine coenzyme A disulfide." [DeltaMass:0, PubMed:1734967, RESID:AA0306, UniMod:281#C] S-myristoyl-L-cysteine ; MOD:00312 def: "A protein modification that effectively converts an L-cysteine residue to S-myristoyl-L-cysteine." [PubMed:10026218, PubMed:10080938, PubMed:8824274, RESID:AA0307, UniMod:45#C] S-palmitoleyl-L-cysteine ; MOD:00313 def: "A protein modification that effectively converts an L-cysteine residue to S-palmitoleyl-L-cysteine." [OMSSA:187, PubMed:8294460, RESID:AA0308, UniMod:431#C] glycine cholesterol ester ; MOD:00314 def: "A protein modification that effectively converts a glycine residue to glycine cholesterol ester." [PubMed:11111088, PubMed:8824192, RESID:AA0309, UniMod:432#C-term] pentakis-L-cysteinyl L-histidino nickel tetrairon pentasulfide ; MOD:00315 def: "A protein modification that effectively converts five L-cysteine residues, an L-histidine residue and a one-nickel four-iron five-sulfur cluster to pentakis-L-cysteinyl L-histidino nickel tetrairon pentasulfide." [PubMed:11509720, PubMed:2550436, RESID:AA0310] N4,N4-dimethyl-L-asparagine ; MOD:00316 def: "A protein modification that effectively converts an L-asparagine residue to N4,N4-dimethyl-L-asparagine." [PubMed:12964758, PubMed:14570711, PubMed:8783012, RESID:AA0311, UniMod:36#N] N6-3,4-didehydroretinylidene-L-lysine ; MOD:00317 def: "A protein modification that effectively converts an L-lysine residue to N6-3,4-didehydroretinylidene-L-lysine." [PubMed:10717661, PubMed:3257009, PubMed:4056688, RESID:AA0312, UniMod:433#K] 4'-(S-L-cysteinyl)-L-tryptophyl quinone ; MOD:00318 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-tryptophan residue by a thioether bond to form 4'-(S-L-cysteinyl)-L-tryptophyl quinone." [PubMed:11555656, PubMed:11717396, RESID:AA0313] 3-(S-L-cysteinyl)-L-aspartic acid ; MOD:00319 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-aspartic acid residue by a thioether bond to form 2-(S-L-cysteinyl)-L-aspartic acid." [PubMed:11555656, PubMed:11717396, RESID:AA0314] 4-(S-L-cysteinyl)-L-glutamic acid ; MOD:00320 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-glutamic acid residue by a thioether bond to form 4-(S-L-cysteinyl)-L-glutamic acid." [ChEBI:20293, PubMed:11555656, PubMed:11717396, RESID:AA0315] cis-14-hydroxy-10,13-dioxo-7-heptadecenoic acid L-aspartate ester ; MOD:00321 def: "A protein modification that effectively converts an L-aspartic acid residue to cis-14-hydroxy-10,13-dioxo-7-heptadecenoic acid L-aspartate ester." [PubMed:11435437, PubMed:7949339, RESID:AA0316, UniMod:434#D] 1'-methyl-L-histidine ; MOD:00322 def: "A protein modification that effectively converts an L-histidine residue to tele-methyl-L-histidine." [PubMed:10601317, PubMed:11474090, PubMed:11875433, PubMed:6692818, PubMed:8076, PubMed:8645219, RESID:AA0317] L-lysine methyl ester ; MOD:00323 def: "A protein modification that effectively converts an L-lysine residue to L-lysine methyl ester." [PubMed:10973948, PubMed:11875433, RESID:AA0318, UniMod:34#C-term] L-serinyl molybdenum bis(molybdopterin guanine dinucleotide) ; MOD:00324 def: "A protein modification that effectively converts an L-serine residue to L-serinyl molybdenum bis(molybdopterin guanine dinucleotide)." [PubMed:8658132, PubMed:8658134, RESID:AA0319] L-beta-methylthioasparagine ; MOD:00325 def: "A protein modification that effectively converts an L-asparagine residue to L-beta-methylthioasparagine." [RESID:AA0320, UniMod:39#N] L-pyrrolysine (Lys) ; MOD:00326 def: "A protein modification that effectively converts an L-lysine residue to L-pyrrolysine (not known as a natural, post-translational modification process)." [PubMed:11435424, PubMed:12029131, PubMed:12029132, PubMed:15314242, PubMed:16096277, RESID:AA0321#LYS, UniMod:435#K] 3-hydroxy-L-tryptophan ; MOD:00327 def: "A protein modification that effectively converts an L-tryptophan residue to a 3-hydroxy-L-tryptophan." [PubMed:10024453, PubMed:11457355, RESID:AA0322] O4'-(phospho-3'-DNA)-L-tyrosine ; MOD:00328 def: "A protein modification that effectively crosslinks an L-tyrosine residue and the 3'-end of DNA through a phosphodiester bond to form O4'-(phospho-3'-DNA)-L-tyrosine." [PubMed:2211714, RESID:AA0323] hydroxyheme-L-glutamate ester ; MOD:00329 def: "A protein modification that effectively results from forming an adduct between a glutamic acid residue and the porphyrin compound heme b, (7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-dipropanoato)iron." [PubMed:11139583, PubMed:11821421, PubMed:11980497, RESID:AA0324, UniMod:436#E] (phospho-5'-guanosine)-L-histidine ; MOD:00330 def: "A protein modification that effectively converts an L-histidine residue to a (phospho-5'-guanosine)-L-histidine." [PubMed:10529169, PubMed:10869342, PubMed:7559521, RESID:AA0325, UniMod:413#H] tetrakis-L-cysteinyl triiron tetrasulfide ; MOD:00331 def: "A protein modification that effectively converts four L-cysteine residues and a three-iron four-sulfur cluster to tetrakis-L-cysteinyl triiron tetrasulfide." [PubMed:11592901, PubMed:11941493, PubMed:2511202, PubMed:6094558, RESID:AA0326] omega-N-glucosyl-L-arginine ; MOD:00332 def: "A protein modification that effectively converts an L-arginine residue to N4-glucosyl-arginine." [PubMed:15279557, PubMed:8521968, PubMed:9536051, RESID:AA0327, UniMod:41#R] (3-aminopropyl)(L-aspartyl-1-amino)phosphoryl-5'-adenosine ; MOD:00333 def: "A protein modification that effectively converts an L-asparagine residue to (3-aminopropyl)(L-aspartyl-1-amino)phosphoryl-5'-adenosine." [PubMed:7559516, PubMed:7835418, PubMed:8183363, RESID:AA0328, UniMod:437#C-term] 1'-heme-L-histidine ; MOD:00334 def: "A protein modification that effectively results from forming an adduct between the tele nitrogen of a histidine residue and the porphyrin compound heme b, (7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-dipropanoato)iron." [PubMed:12033922, PubMed:12121092, RESID:AA0329, UniMod:390#H] (2S,3S,2'R)-3-methyllanthionine sulfoxide ; MOD:00335 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-threonine residue by a thioether bond to form (2S,3S,2'R)-3-methyllanthionine sulfoxide." [PubMed:7737178, PubMed:9219543, RESID:AA0330] tris-L-cysteinyl L-aspartato diiron disulfide ; MOD:00336 def: "A protein modification that effectively converts three L-cysteine residues, an L-aspartic acid residue and a two-iron two-sulfur cluster to tris-L-cysteinyl L-aspartato diiron disulfide." [PubMed:10968624, PubMed:1312028, PubMed:7947772, RESID:AA0331] S-carbamoyl-L-cysteine ; MOD:00337 def: "A protein modification that effectively converts an L-cysteine residue to S-carbamoyl-L-cysteine." [PubMed:12586941, PubMed:240389, RESID:AA0332, UniMod:5#C] S-cyano-L-cysteine ; MOD:00338 def: "A protein modification that effectively converts an L-cysteine residue to S-cyano-L-cysteine." [PubMed:12586941, PubMed:4808702, RESID:AA0333, UniMod:438#C] L-cysteinyl hydrogenase diiron subcluster ; MOD:00339 def: "A protein modification that effectively converts an L-cysteine residue to L-cysteinyl hydrogenase diiron subcluster." [PubMed:10694885, PubMed:9836629, RESID:AA0334, UniMod:439#C] S-amidino-L-cysteine ; MOD:00340 def: "A protein modification that effectively converts an L-cysteine residue to S-amidino-L-cysteine." [PubMed:9148748, RESID:AA0335, UniMod:440#C] N-methyl-L-isoleucine ; MOD:00341 def: "A protein modification that effectively converts an L-isoleucine residue to N-methyl-L-isoleucine." [PubMed:11875433, RESID:AA0336] N-methyl-L-leucine ; MOD:00342 def: "A protein modification that effectively converts an L-leucine residue to N-methyl-L-leucine." [PubMed:11875433, RESID:AA0337] N-methyl-L-tyrosine ; MOD:00343 def: "A protein modification that effectively converts an L-tyrosine residue to N-methyl-L-tyrosine." [DeltaMass:0, RESID:AA0338] N-palmitoylglycine ; MOD:00344 def: "A protein modification that effectively converts a glycine residue to N-palmitoylglycine." [PubMed:12574119, RESID:AA0339] 2-(S-L-cysteinyl)-L-phenylalanine ; MOD:00345 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-phenylalanine residue by a thioether bond to form 2-(S-L-cysteinyl)-L-phenylalanine." [PubMed:12696888, PubMed:3936839, RESID:AA0340] 2-(S-L-cysteinyl)-D-phenylalanine ; MOD:00346 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-phenylalanine residue by a thioether bond to form 2-(S-L-cysteinyl)-D-phenylalanine." [PubMed:12696888, PubMed:3936839, RESID:AA0341] 2-(S-L-cysteinyl)-D-allo-threonine ; MOD:00347 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-threonine residue by a thioether bond to form 2-(S-L-cysteinyl)-D-allo-threonine." [PubMed:12696888, PubMed:3936839, RESID:AA0342] N-carbamoyl-L-alanine ; MOD:00348 def: "A protein modification that effectively converts an L-alanine residue to N-carbamoyl-L-alanine." [PubMed:12203680, RESID:AA0343] 4-amino-3-isothiazolidinone-L-serine ; MOD:00349 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-serine residue to form 4-amino-3-isothiazolidinone-L-serine." [PubMed:12802338, PubMed:12802339, RESID:AA0344] L-threonyl-pentaglycyl-murein peptidoglycan ; MOD:00350 def: "A protein modification that effectively attaches an L-threonine residue to murein peptidoglycan by a pentaglycine linker peptide." [PubMed:10754567, PubMed:1638631, RESID:AA0345] N-glycyl-1-(phosphatidyl)ethanolamine ; MOD:00351 def: "A protein modification that effectively converts a glycine residue to N-glycyl-1-(phosphatidyl)ethanolamine." [PubMed:11100732, RESID:AA0346] L-glutamyl 5-omega-hydroxyceramide ester ; MOD:00352 def: "A protein modification that effectively converts an L-glutamic acid residue to L-glutamyl 5-omega-hydroxyceramide ester." [PubMed:10411887, PubMed:9651377, RESID:AA0347] S-[5'-(L-tryptoph-6'-yl)-L-tyrosin-3'-yl]-L-methionin-S-ium ; MOD:00353 def: "A protein modification that effectively cross-links an L-tryptophan residue with an L-tyrosine residue by a carbon-carbon bond, and cross-links the L-tyrosine residue to an L-methionine residue by a thioether bond to form S-[5'-(L-tryptoph-6'-yl)-L-tyrosin-3'-yl]-L-methionin-S-ium." [PubMed:12172540, PubMed:16285713, RESID:AA0348] O-(riboflavin phosphoryl)-L-threonine ; MOD:00354 def: "A protein modification that effectively converts an L-threonine residue to O-(riboflavin phosphoryl)-L-threonine." [PubMed:10587447, PubMed:11163785, PubMed:11248234, RESID:AA0349, UniMod:442#T] O-(riboflavin phosphoryl)-L-serine ; MOD:00355 def: "A protein modification that effectively converts an L-serine residue to O-(riboflavin phosphoryl)-L-serine." [RESID:AA0350, UniMod:442#S] S-(4a-FMN)-L-cysteine ; MOD:00356 def: "A protein modification that effectively converts an L-cysteine residue to S-(4a-FMN)-L-cysteine." [PubMed:12668455, PubMed:12846567, PubMed:7692961, RESID:AA0351, UniMod:443#C] 1'-(8alpha-FMN)-L-histidine ; MOD:00357 def: "A protein modification that effectively converts an L-histidine residue to 1'-(8alpha-FMN)-L-histidine." [PubMed:11902668, PubMed:8611516, RESID:AA0352, UniMod:409#H] 3'-(8alpha-FMN)-L-histidine ; MOD:00358 def: "A protein modification that effectively converts an L-histidine residue to 3'-(8alpha-FMN)-L-histidine." [PubMed:12417325, RESID:AA0353, UniMod:409#H] N2-acetyl-L-arginine ; MOD:00359 def: "A protein modification that effectively converts an L-arginine residue to N2-acetyl-L-arginine." [PubMed:12883043, PubMed:1894641, RESID:AA0354] L-cysteinyl copper sulfido molybdopterin cytosine dinuncleotide ; MOD:00360 def: "A protein modification that effectively converts an L-cysteine residue to L-cysteinyl copper sulfido molybdopterin cytosine dinuncleotide." [PubMed:12475995, RESID:AA0355, UniMod:444#C] tris-L-cysteinyl S-adenosylmethion-N,O-diyl tetrairon tetrasulfide ; MOD:00361 def: "A protein modification that effectively converts three L-cysteine residues, an S-adenosylmethionine and a four-iron four-sulfur cluster to tris-L-cysteinyl S-adenosylmethion-N,O-diyl tetrairon tetrasulfide." [PubMed:11222759, PubMed:14704425, RESID:AA0356] tris-L-cysteinyl L-arginyl diiron disulfide ; MOD:00362 def: "A protein modification that effectively converts three L-cysteine residues, an L-arginine residue and a two-iron two-sulfur cluster to tris-L-cysteinyl L-arginyl diiron disulfide." [PubMed:14704425, RESID:AA0357] L-cysteinyl-L-selenocysteine (Cys-Sec) ; MOD:00363 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-selenocysteine residues to form L-cysteinyl-L-selenocystine." [PubMed:12911312, RESID:AA0358#SEC] 5-hydroxy-N6,N6,N6-trimethyl-L-lysine ; MOD:00364 def: "A protein modification that effectively converts an L-lysine residue to 5-hydroxy-N6,N6,N6-trimethyl-L-lysine." [PubMed:11349130, PubMed:14661085, RESID:AA0359, UniMod:445#K] N-(L-isoglutamyl)-glycine ; MOD:00365 def: "A protein modification that effectively crosslinks an L-glutamic acid residue and a glycine residue by an isopeptide bond to form N-(L-isoglutamyl)-glycine." [PubMed:14531691, RESID:AA0360] O-sulfo-L-serine ; MOD:00366 def: "A protein modification that effectively converts an L-serine residue to O-sulfo-L-serine." [PubMed:14752058, RESID:AA0361, UniMod:40#S] O-sulfo-L-threonine ; MOD:00367 def: "A protein modification that effectively converts an L-threonine residue to O-sulfo-L-threonine." [PubMed:14752058, RESID:AA0362, UniMod:40#T] N-carboxy-L-methionine ; MOD:00368 def: "A protein modification that effectively converts an L-methionine residue to N-carboxy-L-methionine." [PubMed:10368287, PubMed:11120890, PubMed:12595263, PubMed:8312270, RESID:AA0363, UniMod:299#M] O-acetyl-L-serine ; MOD:00369 def: "A protein modification that effectively converts an L-serine residue to O-acetyl-L-serine." [ChEBI:17981, PubMed:11857757, PubMed:11999733, PubMed:12175151, PubMed:14730666, PubMed:15350136, PubMed:16731519, PubMed:489587, PubMed:7309355, RESID:AA0364, UniMod:1#S] (E)-2,3-didehydrotyrosine ; MOD:00370 def: "A protein modification that effectively converts an L-tyrosine residue to (E)-2,3-didehydrotyrosine." [PubMed:12623015, RESID:AA0365] bis-L-aspartato tris-L-glutamato L-histidino calcium tetramanganese tetroxide ; MOD:00371 def: "A protein modification that effectively converts two L-aspartic acid residues, three L-glutamic acid residues, an L-histidine residue, and a one-calcium, four-iron, four-oxygen cluster to bis-L-aspartato tris-L-glutamato L-histidino calcium tetramanganese tetroxide." [PubMed:14764885, RESID:AA0366] 3'-(3'-L-tyrosinyl)-L-tyrosine ; MOD:00372 def: "A protein modification that effectively cross-links two L-tyrosine residues with a carbon-carbon bond to form 3'-(3'-L-tyrosinyl)-L-tyrosine." [DeltaMass:0, PubMed:14249161, PubMed:637884, PubMed:8702710, PubMed:8937563, RESID:AA0367] 3'-(O4'-L-tyrosinyl)-L-tyrosine ; MOD:00373 def: "A protein modification that effectively cross-links L-tyrosine residues with an ether bond to form 3'-(O4'-L-tyrosinyl)-L-tyrosine." [DeltaMass:0, PubMed:12719529, PubMed:7115340, PubMed:8702710, RESID:AA0368] 3,4-dihydroxy-L-arginine ; MOD:00374 def: "A protein modification that effectively converts an L-arginine residue to 3,4-dihydroxy-L-arginine." [PubMed:10978343, PubMed:12686488, RESID:AA0369, UniMod:425#R] 4,5-dihydroxy-L-lysine ; MOD:00375 def: "A protein modification that effectively converts an L-lysine residue to 4,5-dihydroxy-L-lysine." [PubMed:10978343, PubMed:12686488, RESID:AA0370, UniMod:425#K] 1'-(phospho-5'-adenosine)-L-histidine ; MOD:00376 def: "A protein modification that effectively crosslinks an L-histidine residue and 5'-phosphoadenosine through a phosphoramide ester bond to form 1'-(phospho-5'-adenosine)-L-histidine." [PubMed:15182206, PubMed:9323207, RESID:AA0371, UniMod:405#H] 1'-(phospho-5'-uridine)-L-histidine ; MOD:00377 def: "A protein modification that effectively crosslinks an L-histidine residue and 5'-phosphouridine through a phosphoramide ester bond to form 1'-(phospho-5'-uridine)-L-histidine." [PubMed:11467524, PubMed:321007, PubMed:380639, PubMed:8794735, RESID:AA0372, UniMod:417#H] L-aspartyl semialdehyde ; MOD:00378 def: "A protein modification that effectively converts an L-aspartic acid residue to L-aspartyl semialdehyde." [PubMed:1093385, PubMed:14235557, PubMed:15237995, RESID:AA0373, UniMod:447#D] L-serine microcin E492 siderophore ester ; MOD:00379 def: "A protein modification that effectively converts an L-serine residue to L-serine microcin E492 siderophore ester." [PubMed:15102848, RESID:AA0374, UniMod:448#C-term] L-aspartyl molybdenum bis(molybdopterin guanine dinucleotide) ; MOD:00380 def: "A protein modification that effectively converts an L-aspartic acid residue to L-aspartyl molybdenum bis(molybdopterin guanine dinucleotide)." [PubMed:12910261, PubMed:14725769, RESID:AA0375, UniMod:424#D] L-selenocysteinyl tungsten bis(molybdopterin guanine dinucleotide) (Sec) ; MOD:00381 def: "A protein modification that effectively converts an L-selenocysteine residue to L-selenocysteinyl tungsten bis(molybdopterin guanine dinucleotide)." [PubMed:11372198, PubMed:12220497, RESID:AA0376#SEC] 3-(2-methylthio)ethyl-6-(4-hydroxybenzylidene)-5-iminopiperazin-2-one ; MOD:00382 def: "A protein modification that effectively crosslinks an L-methionyl-L-tyrosine dipeptide to form 3-(2-methylthio)ethyl-6-(4-hydroxybenzylidene)-5-iminopiperazin-2-one." [PubMed:10852900, PubMed:11259412, PubMed:15491166, RESID:AA0377] 2-imino-glutamic acid 5-imidazolinone glycine ; MOD:00383 def: "A protein modification that effectively crosslinks an L-glutamic acid residue and a glycine residue to form 2-imino-glutamic acid 5-imidazolinone glycine." [PubMed:11682051, RESID:AA0378] 2-imino-methionine 5-imidazolinone glycine ; MOD:00384 def: "A protein modification that effectively crosslinks an L-methionine residue and a glycine residue to form 2-imino-methionine 5-imidazolinone glycine." [PubMed:10852900, PubMed:12185250, PubMed:12909624, PubMed:15542608, RESID:AA0379] L-asparagine 5-imidazolinone glycine ; MOD:00385 def: "A protein modification that effectively crosslinks an L-asparagine residue and a glycine residue to form L-asparagine 5-imidazolinone glycine." [PubMed:10504696, RESID:AA0380] L-lysine 5-imidazolinone glycine ; MOD:00386 def: "A protein modification that effectively crosslinks an L-lysine residue and a glycine residue to form L-lysine 5-imidazolinone glycine." [PubMed:10504696, RESID:AA0381] 2-tetrahydropyridinyl-5-imidazolinone glycine ; MOD:00387 def: "A protein modification that effectively crosslinks an L-lysine residue and a glycine residue to form 2-tetrahydropyridinyl-5-imidazolinone glycine." [PubMed:10504696, PubMed:15628861, RESID:AA0382] L-alanyl-pentaglycyl-murein peptidoglycan ; MOD:00388 def: "A protein modification that effectively attaches an L-alanine residue to murein peptidoglycan by a pentaglycine linker peptide." [PubMed:8163519, RESID:AA0383] N-formyl-L-proline ; MOD:00389 def: "A protein modification that effectively converts an L-proline residue to N-formyl-L-proline." [PubMed:12051774, PubMed:5464655, RESID:AA0384, UniMod:122#N-term] O-decanoyl-L-serine ; MOD:00390 def: "A protein modification that effectively converts an L-serine residue to O-decanoyl-L-serine." [PubMed:12630926, RESID:AA0385, UniMod:449#S] O-octanoyl-L-threonine ; MOD:00391 def: "A protein modification that effectively converts an L-threonine residue to O-octanoyl-L-threonine." [PubMed:11546772, PubMed:12716131, RESID:AA0386, UniMod:426#T] O-decanoyl-L-threonine ; MOD:00392 def: "A protein modification that effectively converts an L-threonine residue to O-decanoyl-L-threonine." [PubMed:11546772, RESID:AA0387, UniMod:449#T] O-methylated residue ; MOD:00393 def: "A protein modification that effectively replaces a hydroxyl group hydrogen with a methyl group to produce either an ether from an alcohol or an ester from an acid." [PubMed:18688235] acetylated residue ; MOD:00394 def: "A protein modification that effectively replaces a hydrogen atom with an acetyl group." [DeltaMass:0, PubMed:11857757, PubMed:11999733, PubMed:12175151, PubMed:14730666, PubMed:15350136, UniMod:1] thioester crosslinked residues ; MOD:00395 def: "A protein modification that crosslinks two residues by formation of a thioester bond between a cysteine thiol and either an alpha-carbonyl, as in S-(L-methionyl-L-cysteine), or a sidechain carbonyl, as in S-(L-isoglutamyl)-L-cysteine." [PubMed:18688235] O-glycosylated residue ; MOD:00396 def: "A protein modification that effectively replaces a residue hydrogen atom on an oxygen with a carbohydrate-like group through a glycosidic bond." [PubMed:18688235] iodoacetamide derivatized residue ; MOD:00397 def: "A protein modification that is produced by reaction with iodoacetamide, usually replacement of a reactive hydrogen with a methylcarboxamido group." [PubMed:11327326, PubMed:11510821, PubMed:12422359, UniMod:4] carbamoylated residue ; MOD:00398 def: "A protein modification that effectively replaces a hydrogen atom with a carbamoyl (carboxamido) group. Replacement of an amino hydrogen produces a ureido group." [DeltaMass:56, PubMed:10978403, PubMed:12203680, UniMod:5] iodoacetic acid derivatized residue ; MOD:00399 def: "A protein modification that is produced by reaction with iodoacetic acid, usually replacement of a reactive hydrogen with a methylcarboxy group." [DeltaMass:64, UniMod:6] deamidated residue ; MOD:00400 def: "A protein modification that effectively replaces a carboxamido group with a carboxyl group, with both a gain of oxygen and loss of a nitrogen and a hydrogen." [DeltaMass:32, OMSSA:4, UniMod:7] Gygi ICAT(TM) d0 modified cysteine ; MOD:00401 def: "A protein modification that is produced by formation of an adduct of a cysteine residue with the Gygi isotope-coded affinity tag d0 reagent." [PubMed:10504701, UniMod:8#C] Gygi ICAT(TM) d8 modified cysteine ; MOD:00402 def: "A protein modification that is produced by formation of an adduct of a cysteine residue with the Gygi isotope-coded affinity tag d8 reagent." [PubMed:10504701, UniMod:9#C] homoserine ; MOD:00403 def: "A protein modification that effectively converts an L-methionine residue to homoserine." [DeltaMass:113, OMSSA:56, UniMod:10#M] homoserine lactone ; MOD:00404 def: "A protein modification that effectively converts an L-methionine residue to homoserine lactone." [DeltaMass:90, OMSSA:57, UniMod:11#M] Applied Biosystems original ICAT(TM) d8 modified cysteine ; MOD:00405 def: "A protein modification that is produced by formation of an adduct of a cysteine residue with the Applied Biosystems original isotope-coded affinity tag d8 reagent." [UniMod:12#C] Applied Biosystems original ICAT(TM) d0 modified cysteine ; MOD:00406 def: "A protein modification that is produced by formation of an adduct of a cysteine residue with the Applied Biosystems original isotope-coded affinity tag d0 reagent." [UniMod:13#C] residue methyl ester ; MOD:00407 def: "A protein modification that effectively replaces a carboxyl group with a carboxy methyl ester group. OBSOLETE because UniMod:14 merged with entry 34, remap to MOD:00599." [PubMed:18688235] is_obsolete: true N-acetylated residue ; MOD:00408 def: "A protein modification that effectively replaces a residue amino or imino hydrogen with an acetyl group." [PubMed:18688235] N-formylated residue ; MOD:00409 def: "A protein modification that effectively replaces a residue amino group with a formamido group." [OMSSA:44, OMSSA:82] S-(N-isopropylcarboxamidomethyl)-L-cysteine ; MOD:00410 def: "A protein modification that effectively converts an L-cysteine residue to S-(N-isopropylcarboxamidomethyl)-L-cysteine." [OMSSA:84, PubMed:11465505, PubMed:8465942, UniMod:17#C] O18 label ; MOD:00411 def: "modification from UniMod Isotopic label. OBSOLETE because UniMod:18 is now merged with entry 258 remap to MOD:00581 'single 018 label'" [PubMed:18688235] is_obsolete: true oxidation ; MOD:00412 def: "modification from UniMod artifact. OBSOLETE because UniMod entry 19 is now merged with UniMod 35 remap to MOD:00425 'monohydroxylated residue'." [PubMed:18688235] is_obsolete: true biotinyl-iodoacetamidyl-3,6-dioxaoctanediamine derivatized cysteine ; MOD:00413 def: "A protein modification that is produced by reaction of a cysteine residue with biotinyl-iodoacetamidyl-3,6-dioxaoctanediamine." [UniMod:20#C] monomethylated L-arginine ; MOD:00414 def: "A protein modification that effectively replaces one hydrogen atom of an L-arginine residue with one methyl group." [DeltaMass:215, OMSSA:77, UniMod:34#R] phosphorylation without neutral loss ; MOD:00415 def: "modification from UniMod - OBSOLETE because UniMod entry 22 is now merged with entry 21 remap to MOD:00696 'phosphorylated residue'." [PubMed:18688235] is_obsolete: true phosphorylation of an hydroxyl amino acid with prompt loss of phosphate ; MOD:00416 def: "A change resulting in an alteration of the measured molecular mass of a peptide or protein hydroxyl amino acid phosphorylated promptly followed by secondary loss of a neutral trihydrogen phosphate molecular fragment." [UniMod:23] S-carboxamidoethyl-L-cysteine ; MOD:00417 def: "A protein modification that effectively converts an L-cysteine residue to S-carboxamidoethyl-L-cysteine." [DeltaMass:72, OMSSA:5, PubMed:1481983, UniMod:24#C] pyridylacetylated residue ; MOD:00418 def: "A protein modification that effectively replaces a hydrogen atom with an (pyridin-3-yl)acetyl group." [PubMed:9276974, UniMod:25] (R)-5-oxo-1,4-tetrahydrothiazine-3-carboxylic acid ; MOD:00419 def: "A protein modification that effectively converts an L-cysteine residue to (R)-5-oxo-1,4-tetrahydrothiazine-3-carboxylic acid." [DeltaMass:336, PubMed:12643538, UniMod:26#C] 2-pyrrolidone-5-carboxylic acid (Glu) ; MOD:00420 def: "A protein modification that effectively converts an L-glutamic acid residue to 2-pyrrolidone-5-carboxylic acid." [DeltaMass:16, OMSSA:109, PubMed:10214721, PubMed:1836357, PubMed:3473473, PubMed:8382902, RESID:AA0031#GLU, UniMod:27#E] C-glycosylated residue ; MOD:00421 def: "A protein modification that effectively replaces a residue hydrogen atom on a carbon with a carbohydrate-like group through a glycosidic bond." [PubMed:18688235] alpha-amino morpholine-2-acetylated residue ; MOD:00422 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a morpholine-2-acetyl group." [PubMed:10446193, UniMod:29#N-term] monosodium salt ; MOD:00423 def: "A protein modification that effectively substitutes one sodium atom for one hydrogen atom." [DeltaMass:0, UniMod:30] S-pyridylethyl-L-cysteine ; MOD:00424 def: "A protein modification that effectively converts an L-cysteine residue to S-pyridylethyl-L-cysteine." [DeltaMass:253, OMSSA:112, PubMed:11760118, PubMed:626389, PubMed:8297018, PubMed:8783016, UniMod:31#C] monohydroxylated residue ; MOD:00425 def: "A protein modification that effectively replaces one hydrogen atom with a hydroxyl group." [UniMod:35] S-glycosylated residue ; MOD:00426 def: "A protein modification that effectively replaces a residue hydrogen atom on a sulfur with a carbohydrate-like group through a glycosidic bond." [PubMed:18688235] methylated residue ; MOD:00427 def: "A protein modification that effectively replaces a hydrogen atom with a methyl group." [DeltaMass:36] dihydroxylated residue ; MOD:00428 def: "A protein modification that effectively replaces two hydrogen atoms with two hydroxyl groups." [PubMed:12686488, UniMod:425] dimethylated residue ; MOD:00429 def: "A protein modification that effectively replaces two hydrogen atoms with two methyl groups." [DeltaMass:0, PubMed:12964758, PubMed:14570711, UniMod:36] trimethylated residue ; MOD:00430 def: "A protein modification that effectively replaces three hydrogen atoms with three methyl groups." [PubMed:12590383, PubMed:3145979, PubMed:4304194, PubMed:6778808, PubMed:7093227, PubMed:8453381, UniMod:37] modified residue with a secondary neutral loss ; MOD:00431 def: "Covalent modification of, or a change resulting in an alteration of the measured molecular mass of, a peptide or protein amino acid residue with a secondary loss of a neutral molecular fragment." [PubMed:18688235] modified residue with neutral loss of phosphate ; MOD:00432 def: "Covalent modification of, or a change resulting in an alteration of the measured molecular mass of, a peptide or protein amino acid residue with a secondary loss of a neutral trihydrogen phosphate molecular fragment." [PubMed:18688235] glucosylated residue ; MOD:00433 def: "A protein modification that effectively replaces a hydrogen atom with an glucose group through a glycosidic bond." [PubMed:18688235] hexosylated residue ; MOD:00434 def: "A protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with a hexose sugar group through a glycosidic bond." [DeltaMass:203, PubMed:15279557, UniMod:41] O-phospho-L-serine with neutral loss of phosphate ; MOD:00435 def: "Covalent modification of a peptide or protein amino acid phosphorylated serine with a secondary loss of a neutral trihydrogen phosphate molecular fragment." [PubMed:18688235] N-acetylhexosaminylated ; MOD:00436 def: "A protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with an N-acetylhexosamine group through a glycosidic bond." [PubMed:18688235] farnesylated residue ; MOD:00437 def: "A protein modification that effectively replaces a hydrogen atom with a farnesyl group." [DeltaMass:0, PubMed:15609361, UniMod:44] myristoylated residue ; MOD:00438 def: "A protein modification that effectively replaces a hydrogen atom with a myristoyl group." [DeltaMass:0, UniMod:45] O-phospho-L-threonine with neutral loss of phosphate ; MOD:00439 def: "Covalent modification of a peptide or protein amino acid phosphorylated threonine with a secondary loss of a neutral trihydrogen phosphate molecular fragment." [PubMed:18688235] palmitoylated residue ; MOD:00440 def: "A protein modification that effectively replaces a hydrogen atom with a palmitoyl group." [DeltaMass:0] geranylgeranylated residue ; MOD:00441 def: "A protein modification that effectively replaces a hydrogen atom with a geranylgeranyl group." [DeltaMass:0, PubMed:15609361, UniMod:48] protonated omega-N,omega-N'-dimethylated L-arginine with secondary neutral loss of N,N'-carbodiimide ; MOD:00442 def: "Covalent modification of a peptide or protein L-arginine residue to protonated omega-N,omega-N'-dimethylated L-arginine with secondary loss of an N,N'-carbodiimide molecular fragment." [PubMed:15835918, PubMed:18688235] protonated omega-N,omega-N-dimethlyated L-arginine with secondary neutral loss of N,N-dimethylamine ; MOD:00443 def: "Covalent modification of a peptide or protein L-arginine residue to protonated omega-N,omega-N-dimethlyated L-arginine with secondary neutral loss of an N,N-dimethylamine molecular fragment." [PubMed:15835918, PubMed:18688235] N-palmitoyl-S-(sn-1-2,3-dipalmitoyl-glycerol)cysteine ; MOD:00444 def: "A protein modification that effectively converts an L-cysteine residue to N-palmitoyl-S-(sn-1-2,3-dipalmitoyl-glycerol)cysteine." [OMSSA:118, PubMed:10356335, UniMod:51] L-homoarginine ; MOD:00445 def: "A protein modification that effectively converts an L-lysine residue to L-homoarginine, such as reaction with O-methylisourea." [OMSSA:53, PubMed:11078590, PubMed:11085420, PubMed:11821862, UniMod:52] 4-hydroxynonenal adduct ; MOD:00446 def: "A protein modification produced by formation of an adduct of a residue with 4-hydroxynonenal." [PubMed:11327326, PubMed:15133838, UniMod:53] N-glucuronylated residue ; MOD:00447 def: "A protein modification that effectively results from forming an adduct with a glucuronic acid either through a carboxyl group amide or ester bond, or through C1-glycosylation." [DeltaMass:0, PubMed:7398618, UniMod:54#N-term] N-acetylaminoglucosylated residue ; MOD:00448 def: "A protein modification that effectively replaces a hydrogen atom with an N-acetylaminoglucose group through a glycosidic bond." [PubMed:18688235] acetate labeling reagent (N-term) (heavy form, +3amu) ; MOD:00449 def: "modification from UniMod Isotopic label" [PubMed:11857757, PubMed:11999733, PubMed:12175151, UniMod:56] acetate labeling reagent light form (K) ; MOD:00450 def: "OBSOLETE because this isotopic label from UniMod entry 57 is deprecated" [PubMed:11857757] is_obsolete: true alpha-amino propanoylated residue ; MOD:00451 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a propanoyl group." [PubMed:11857757, PubMed:11999733, PubMed:12175151, UniMod:58#N-term] alpha-amino 3x(13)C-labeled propanoylated residue ; MOD:00452 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a 3x(13)C-labeled propanoyl group." [PubMed:11857757, PubMed:11999733, PubMed:12175151, UniMod:59#N-term] quaternary amine labeling reagent light form (N-term & K) ; MOD:00453 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a quaternary amine reagent light form group." [PubMed:11857757, UniMod:60] quaternary amine labeling reagent heavy form (+3amu) (N-term & K) ; MOD:00454 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a quaternary amine reagent heavy (+3amu) form group." [PubMed:11857757, UniMod:61] quaternary amine labeling reagent heavy form (+6amu) (N-term & K) ; MOD:00455 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a quaternary amine reagent heavy (+6amu) form group." [PubMed:11857757, UniMod:62] quaternary amine labeling reagent heavy form (+9amu) (N-term & K) ; MOD:00456 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a quaternary amine reagent heavy (+9amu) form group." [PubMed:11857757, UniMod:63] alpha-amino succinylated residue ; MOD:00457 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a succinyl group." [PubMed:11857757, PubMed:12175151, UniMod:64#N-term] 4x(2)H labeled alpha-amino succinylated residue ; MOD:00458 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a 4x(2)H labeled succinyl group." [PubMed:11857757, PubMed:12175151, UniMod:65#N-term] 4x(13)C labeled alpha-amino succinylated residue ; MOD:00459 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a 4x(13)C labeled succinyl group." [PubMed:11857757, PubMed:12175151, UniMod:66#N-term] L-cysteic acid (L-cysteine sulfonic acid) ; MOD:00460 def: "A protein modification that effectively trioxygenates an L-cysteine residue to L-cysteine sulfonic acid." [ChEBI:17285, DeltaMass:334, OMSSA:34, PubMed:14678012, PubMed:18306178, PubMed:19522542, PubMed:9252331, RESID:AA0556, UniMod:345#C] nitrosylation ; MOD:00461 def: "A protein modification that effectively substitutes a nitrite (NO2) group for a hydrogen atom." [DeltaMass:0, PubMed:8839040, PubMed:9252331, UniMod:354] L-kynurenine ; MOD:00462 def: "A protein modification that effectively converts an L-tryptophan residue to L-kynurenine." [DeltaMass:357, OMSSA:66, PubMed:11029593, PubMed:9252331, UniMod:351#W] 3'-hydroxy-L-kynurenine ; MOD:00463 def: "A protein modification that effectively converts an L-tryptophan residue to 3'-hydroxy-L-kynurenine." [OMSSA:58, PubMed:9252331, UniMod:350#W] N'-formyl-L-kynurenine ; MOD:00464 def: "A protein modification that effectively converts an L-tryptophan residue to N'-formyl-L-kynurenine." [DeltaMass:356, OMSSA:45, PubMed:12124932, PubMed:12686488, PubMed:9252331, UniMod:425#W] dihydroxyphenylalanine (Phe) ; MOD:00465 def: "A protein modification that effectively converts an L-phenylalanine residue to a dihydroxyphenylalanine." [OMSSA:39, PubMed:1610822, PubMed:1903612, PubMed:3734192, PubMed:9252331, RESID:AA0146#var, UniMod:425#F] glycosylsphingolipidinositolated residue ; MOD:00466 def: "A protein modification that effectively converts a residue to a glycosylsphingolipidinositolethanolamidated." [PubMed:12626404, PubMed:18688235, PubMed:8404891] iminobiotinyl modified residue ; MOD:00467 def: "A protein modification that effectively substitutes an iminobiotinyl group for a hydrogen atom." [PubMed:9750125, UniMod:89] ESP-Tag light d0 ; MOD:00468 def: "modification from UniMod Isotopic label" [UniMod:90] ESP-Tag heavy d10 ; MOD:00469 def: "modification from UniMod Isotopic label" [UniMod:91] NHS-LC-Biotin ; MOD:00470 def: "modification from UniMod Chemical derivative" [UniMod:92] EDT-maleimide-PEO-biotin ; MOD:00471 def: "modification from UniMod Chemical derivative" [UniMod:93] IMID d0 ; MOD:00472 def: "modification from UniMod Isotopic label" [PubMed:11746907, UniMod:94, URL:http\://dx.doi.org/10.1002/rcm.517] IMID d4 ; MOD:00473 def: "modification from UniMod Isotopic label" [PubMed:11746907, UniMod:95, URL:http\://dx.doi.org/10.1002/rcm.517] S-([1,1,2-(2)H3]-carboxamidoethyl)-L-cysteine ; MOD:00474 def: "A protein modification that effectively converts an L-cysteine residue to S-(1,1,2-(2)H3)-propanamide-L-cysteine." [UniMod:97#C] tyrosine oxidation to 2-aminotyrosine ; MOD:00475 def: "modification from UniMod Chemical derivative" [PubMed:8839040, PubMed:9252331, UniMod:342#Y] galactosylated residue ; MOD:00476 def: "A protein modification that effectively replaces a hydrogen atom with an galactose group through a glycosidic bond." [PubMed:18688235] 2-pyrrolidone ; MOD:00477 def: "A protein modification that effectively converts, by oxidative decarboxylation, an L-proline residue to 2-pyrrolidone with breakage of the peptide chain." [PubMed:2161657, PubMed:9252331, UniMod:360#P] glutamyl semialdehyde (Pro) ; MOD:00478 def: "A protein modification that effectively converts an L-proline residue to L-glutamyl semialdehyde." [DeltaMass:354, PubMed:11120890, PubMed:2563380, PubMed:9252331, UniMod:35#P] glutamyl semialdehyde (Arg) ; MOD:00479 def: "A protein modification that effectively converts an L-arginine residue to L-glutamyl semialdehyde." [DeltaMass:351, PubMed:11120890, PubMed:1680314, PubMed:9252331, UniMod:344#R] Applied Biosystems cleavable ICAT(TM) light ; MOD:00480 def: "modification from UniMod Isotopic label" [OMSSA:129, UniMod:105#C, URL:http\://www.appliedbiosystems.com/products/productdetail.cfm?prod_id=153] Applied Biosystems cleavable ICAT(TM) heavy ; MOD:00481 def: "modification from UniMod Isotopic label" [OMSSA:130, UniMod:106#C, URL:http\://www.appliedbiosystems.com/products/productdetail.cfm?prod_id=153] N-formyl-L-methionine (Met) ; MOD:00482 def: "A protein modification that effectively converts an L-methionine residue to N-formyl-L-methionine (not known as a natural, post-translational modification process)." [PubMed:11152118, PubMed:2165784, PubMed:3042771, RESID:AA0021#MET] N-ethylmaleimide derivatized cysteine ; MOD:00483 def: "A protein modification that is produced by reaction with N-ethylmaleimide." [OMSSA:83, PubMed:11813307, PubMed:12777388, UniMod:108#C] oxidized lysine biotinylated with biotin-LC-hydrazide, reduced ; MOD:00484 def: "modification from UniMod Chemical derivative" [UniMod:112#K] oxidized lysine biotinylated with biotin-LC-hydrazide ; MOD:00485 def: "modification from UniMod Chemical derivative" [UniMod:113#K] oxidized proline biotinylated with biotin-LC-hydrazide, reduced ; MOD:00486 def: "modification from UniMod Chemical derivative" [UniMod:114#C] oxidized proline biotinylated with biotin-LC-hydrazide ; MOD:00487 def: "modification from UniMod Chemical derivative" [UniMod:115#C] oxidized arginine biotinylated with biotin-LC-hydrazide ; MOD:00488 def: "modification from UniMod Chemical derivative" [UniMod:116#C] oxidized arginine biotinylated with biotin-LC-hydrazide, reduced ; MOD:00489 def: "modification from UniMod Chemical derivative" [UniMod:117#C] EDT-iodo-PEO-biotin ; MOD:00490 def: "modification from UniMod Chemical derivative" [UniMod:118] thio ether formation - BTP Adduct ; MOD:00491 def: "modification from UniMod Chemical derivative" [PubMed:11861642, UniMod:119#C] ubiquitination signature dipeptidyl lysine ; MOD:00492 def: "A protein modification that crosslinks the N6-amino of a peptidyl lysine with the carboxyl of glycylglycine, the two glycine residues left after tryptic digestion of ubiquitin." [OMSSA:52, PubMed:11125103, PubMed:12612601, PubMed:12872131, RESID:AA0125#var, UniMod:121#K] formylated residue ; MOD:00493 def: "A protein modification that effectively replaces a hydrogen atom with a formyl group." [DeltaMass:0, PubMed:15799070, UniMod:122] N-iodoacetyl, p-chlorobenzyl-12C6-glucamine ; MOD:00494 def: "modification from UniMod Isotopic label" [PubMed:12185208, UniMod:123#C] N-iodoacetyl, p-chlorobenzyl-13C6-glucamine ; MOD:00495 def: "modification from UniMod Isotopic label" [PubMed:12185208, UniMod:124#C] reductive amination-D ; MOD:00496 def: "OBSOLETE because UniMod entry 125 is merged with entry 199, remap to id: MOD:00552" [UniMod:125] is_obsolete: true 3-sulfanylpropanoyl (N-term and Lys) ; MOD:00497 def: "modification from UniMod [(35)S]dithiobis(succinimidyl propionate) crosslinking" [PubMed:957432, UniMod:126] fluorinated residue ; MOD:00498 def: "A protein modification that effectively substitutes a hydrogen of a residue with a fluorine atom." [PubMed:18688235] 5-iodoacetamidofluorescein ; MOD:00499 def: "modification from UniMod Chemical derivative" [PubMed:3311742, PubMed:3578767, UniMod:128#C] monoiodinated residue ; MOD:00500 def: "A protein modification that effectively substitutes one hydrogen atom of a residue with one iodine atom." [DeltaMass:0, PubMed:15627961, PubMed:2026710, UniMod:129] diiodinated residue ; MOD:00501 def: "A protein modification that effectively substitutes two hydrogen atoms of a residue with two iodine atoms." [UniMod:130] triiodinated residue ; MOD:00502 def: "A protein modification that effectively substitutes three hydrogen atoms of a residue with three iodine atoms." [OMSSA:116, PubMed:15627961, PubMed:2026710, UniMod:131] N-(cis-delta 5)-tetradecaenoylglycine ; MOD:00503 def: "A protein modification that effectively converts a glycine residue to N-(cis-delta 5)-tetradecaenoylglycine." [OMSSA:78, PubMed:11955007, PubMed:11955008, PubMed:1326520, PubMed:1386601, PubMed:6436247, PubMed:7543369, RESID:AA0059#var, UniMod:134#G] N-(cis,cis-delta 5,delta 8)-tetradecadienoylglycine ; MOD:00504 def: "A protein modification that effectively converts a glycine residue to N-(cis,cis-delta 5,delta 8)-tetradecadienoylglycine." [OMSSA:79, PubMed:11955007, PubMed:11955008, PubMed:1326520, PubMed:1386601, PubMed:6436247, PubMed:7543369, RESID:AA0059#var, UniMod:135#G] benzoyl labeling reagent light form (N-term and K) ; MOD:00505 def: "modification from UniMod Isotopic label" [DeltaMass:0, PubMed:15456300, UniMod:136] N-linked glycan core ; MOD:00506 def: "modification from UniMod N-linked glycosylation, Hex(5) HexNAc(2)" [PubMed:111247, PubMed:1694179, PubMed:5490222, RESID:AA0151#var, UniMod:137#N] 5-dimethylaminonaphthalene-1-sulfonyl ; MOD:00507 def: "OBSOLETE because redundant, replaced by MOD:01653. Remap to MOD:01653." [DeltaMass:0, UniMod:139] is_obsolete: true ISD a-series (C-Term) ; MOD:00508 def: "modification from UniMod Other" [PubMed:14588022, UniMod:140] amidination of lysines or N-terminal amines with methyl acetimidate ; MOD:00509 def: "modification from UniMod Chemical derivative" [PubMed:12643539, PubMed:6273432, UniMod:141] HexNAc1dHex1 ; MOD:00510 def: "modification from UniMod N-linked glycosylation, dHex HexNAc" [OMSSA:183, PubMed:111247, PubMed:1694179, PubMed:5490222, RESID:AA0151#var, UniMod:142] HexNAc2 ; MOD:00511 def: "modification from UniMod N-linked glycosylation, HexNAc(2)" [PubMed:111247, PubMed:1694179, PubMed:5490222, RESID:AA0151#var, UniMod:143] Hex3 ; MOD:00512 def: "modification from UniMod N-linked glycosylation, Hex3" [PubMed:111247, PubMed:1694179, PubMed:5490222, RESID:AA0151#var, UniMod:144] HexNAc1dHex2 ; MOD:00513 def: "modification from UniMod N-linked glycosylation, dHex(2) HexNAc" [PubMed:111247, PubMed:1694179, PubMed:5490222, RESID:AA0151#var, UniMod:145] Hex1HexNAc1dHex1 ; MOD:00514 def: "modification from UniMod N-linked glycosylation, dHex Hex HexNAc" [PubMed:111247, PubMed:1694179, PubMed:5490222, RESID:AA0151#var, UniMod:146] HexNAc2dHex1 ; MOD:00515 def: "modification from UniMod N-linked glycosylation, dHex HexNAc(2)" [PubMed:111247, PubMed:1694179, PubMed:5490222, RESID:AA0151#var, UniMod:147] Hex1HexNAc2 ; MOD:00516 def: "modification from UniMod N-linked glycosylation" [RESID:AA0151#var, UniMod:148] Hex1HexNAc1NeuAc1 glycosylated residue ; MOD:00517 def: "A protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with a carbohydrate-like group composed of Hex1HexNAc1NeuAc1 linked through a glycosidic bond." [DeltaMass:0, UniMod:149] HexNAc2dHex2 ; MOD:00518 def: "modification from UniMod N-linked glycosylation" [RESID:AA0151#var, UniMod:150] Hex1HexNAc2Pent1 ; MOD:00519 def: "modification from UniMod N-linked glycosylation" [RESID:AA0151#var, UniMod:151] Hex1HexNAc2dHex1 ; MOD:00520 def: "modification from UniMod N-linked glycosylation" [RESID:AA0151#var, UniMod:152] Hex2HexNAc2 ; MOD:00521 def: "modification from UniMod N-linked glycosylation" [RESID:AA0151#var, UniMod:153] Hex3HexNAc1Pent1 ; MOD:00522 def: "modification from UniMod N-linked glycosylation" [RESID:AA0151#var, UniMod:154] Hex1HexNAc2dHex1Pent1 ; MOD:00523 def: "modification from UniMod N-linked glycosylation" [RESID:AA0151#var, UniMod:155] Hex1HexNAc2dHex2 ; MOD:00524 def: "modification from UniMod N-linked glycosylation" [RESID:AA0151#var, UniMod:156] Hex2HexNAc2Pent1 ; MOD:00525 def: "modification from UniMod N-linked glycosylation" [RESID:AA0151#var, UniMod:157] Hex2HexNAc2dHex1 ; MOD:00526 def: "modification from UniMod N-linked glycosylation" [RESID:AA0151#var, UniMod:158] Hex3HexNAc2 ; MOD:00527 def: "modification from UniMod N-linked glycosylation" [DeltaMass:0, RESID:AA0151#var, UniMod:159] Hex1HexNAc1NeuAc2 glycosylated residue ; MOD:00528 def: "A protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with a carbohydrate-like group composed of Hex1HexNAc1NeuAc2 linked through a glycosidic bond." [UniMod:160] Hex3HexNAc2P1 ; MOD:00529 def: "modification from UniMod N-linked glycosylation" [RESID:AA0151#var, UniMod:161] L-selenomethionine ; MOD:00530 def: "A protein modification that effectively converts an L-methionine residue to L-selenomethionine." [OMSSA:113, PubMed:12148805, UniMod:162#M] (18)O labeled deglycosylated asparagine ; MOD:00531 def: "A protein modification that effectively converts an L-asparagine residue to L-aspartic acid with one (18)O as the result of having been deglycosylated in (18)O water." [PubMed:14435542, UniMod:170] Shimadzu 13CNBS ; MOD:00532 def: "modification from UniMod Chemical derivative" [PubMed:12845591, UniMod:171] Shimadzu 12CNBS ; MOD:00533 def: "modification from UniMod Chemical derivative" [PubMed:12845591, UniMod:172] Michael addition of BHT quinone methide to cysteine and lysine ; MOD:00534 def: "modification from UniMod Post-translational" [PubMed:9448752, UniMod:176] phosphorylation to amine thiol ; MOD:00535 def: "modification from UniMod Chemical derivative" [PubMed:12216740, UniMod:178] L-serine to L-alanine replacement ; MOD:00536 def: "OBSOLETE because UniMod 179 merged wth UniMod 447 remap to ??? a protein modification that replaces an L-serine residue with an L-alanine residue" [UniMod:179] is_obsolete: true L-alanine residue (Thr) ; MOD:00537 def: "A protein modification that effectively converts an L-threonine residue to L-alanine." [UniMod:659] protein modification categorized by isobaric sets ; MOD:00538 def: "Modified amino acid residues groups into isobaric sets at particular mass resolution cut-offs." [PubMed:18688235] threonine reduced to aminobutynate ; MOD:00539 def: "OBSOLETE because UniMod 179 merged wth UniMod 447 remap to ??? modification from UniMod O-linked glycosylation" [UniMod:182] is_obsolete: true 9x(13)C labeled residue ; MOD:00540 def: "A protein modification that effectively converts a residue containing common isotopes to a 9x(13)C labeled residue." [PubMed:12716131, UniMod:184] 9x(13)C labeled L-phosphotyrosine ; MOD:00541 def: "A protein modification that effectively converts an L-tyrosine residue to 9x(13)C labeled L-phosphotyrosine." [PubMed:12716131, UniMod:185] hydroxyphenylglyoxal arginine ; MOD:00542 def: "modification from UniMod Chemical derivative" [PubMed:11698400, PubMed:11914093, UniMod:186] bis(hydroxyphenylglyoxal) arginine ; MOD:00543 def: "modification from UniMod Chemical derivative" [PubMed:11698400, UniMod:187] 6x(13)C labeled residue ; MOD:00544 def: "A protein modification that effectively converts a residue containing common isotopes to a 6x(13)C labeled residue." [PubMed:12716131, UniMod:188] deuterated dimethyl labeling (D) ; MOD:00545 def: "OBSOLETE because redundant with MOD:00927. Remap to MOD:00927." [PubMed:14670044] is_obsolete: true (18)O label at both C-terminal oxygens ; MOD:00546 def: "A protein modification that effectively substitutes two (18)O atom for the two (16)O atoms of an alpha-carboxyl (1-carboxyl) group." [OMSSA:88, PubMed:11467524, UniMod:193] 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate ; MOD:00547 def: "modification from UniMod Chemical derivative" [PubMed:14997490, UniMod:194] APTA-d0 ; MOD:00548 def: "modification from UniMod Chemical derivative" [PubMed:15283597, UniMod:195] APTA d3 ; MOD:00549 def: "modification from UniMod Isotopic label" [PubMed:15283597, UniMod:196] EAPTA d0 ; MOD:00550 def: "modification from UniMod Chemical derivative" [UniMod:197] EAPTA d5 ; MOD:00551 def: "modification from UniMod Isotopic label" [UniMod:198] 4x(2)H labeled dimethylated residue ; MOD:00552 def: "A protein modification that effectively converts a residue containing common isotopes to a 4x(2)H labeled dimethylated residue." [PubMed:14670044, UniMod:199] 1,2-ethanedithiol modified residue ; MOD:00553 def: "A protein modification that effectively substitutes a (2-sulfanylethyl)sulfanyl (or thioethylthiol) group for a hydroxy group." [DeltaMass:0, PubMed:11507762, UniMod:200] APTA-d0 with no neutral loss ; MOD:00554 def: "OBSOLETE because UniMod entry 202 was merged with entry 195, remap to MOD:00548. modification from UniMod Chemical derivative" [UniMod:202] is_obsolete: true APTA-d0 with quaternary amine loss ; MOD:00555 def: "OBSOLETE because UniMod entry 202 was merged with entry 195, remap to MOD:00548. modification from UniMod Chemical derivative" [UniMod:203] is_obsolete: true acrolein addition +94 ; MOD:00556 def: "modification from UniMod Other" [UniMod:205] acrolein addition +56 ; MOD:00557 def: "modification from UniMod Other" [PubMed:10825247, PubMed:15541752, UniMod:206] acrolein addition +38 ; MOD:00558 def: "modification from UniMod Other" [UniMod:207] acrolein addition +76 ; MOD:00559 def: "modification from UniMod Other" [UniMod:208] acrolein addition +112 ; MOD:00560 def: "modification from UniMod Other" [UniMod:209] N-ethyl iodoacetamide-d0 ; MOD:00561 def: "modification from UniMod Isotopic label" [PubMed:12766232, UniMod:211] N-ethyl iodoacetamide-d5 ; MOD:00562 def: "modification from UniMod Isotopic label" [PubMed:12766232, UniMod:212] N-acetylaminogalactosylated residue ; MOD:00563 def: "A protein modification that effectively replaces a hydrogen atom with an N-acetylaminogalactose group through a glycosidic bond." [PubMed:18688235] Applied Biosystems iTRAQ(TM) multiplexed quantitation chemistry ; MOD:00564 def: "Modification from UniMod Isotopic label. The UniMod term was extracted when it had not been approved. OBSOLETE because redundant to MOD:01505. Remap to MOD:01505, or one of the child terms MOD:01493 or MOD:01497." [UniMod:214, URL:http\://docs.appliedbiosystems.com/pebiodocs/04351918.pdf] is_obsolete: true deglycosylated asparagine ; MOD:00565 def: "modification from UniMod N-linked glycosylation" [UniMod:7#N] label cysteine with IGBP reagent ; MOD:00566 def: "modification from UniMod Chemical derivative" [UniMod:243] histidine oxidation to asparagine ; MOD:00567 def: "OBSOLETE because UniMod entry 244 is redundant with UniMod 348. Remap to MOD:00775." [ChEBI:29956, PubMed:15736973, PubMed:5681232, PubMed:6692818, PubMed:9789001, RESID:AA0003, UniMod:244] is_obsolete: true histidine oxidation to aspartic acid ; MOD:00568 def: "OBSOLETE because UniMod entry 245 is redundant with UniMod 349. Remap to MOD:00776" [PubMed:1097438, PubMed:339692, PubMed:4399050, PubMed:5764436, PubMed:6692818, PubMed:8089117, PubMed:9521123, PubMed:9582379, UniMod:245] is_obsolete: true residues isobaric at a resolution below 0.000001 Da ; MOD:00569 def: "Natural or modified residues that are isobaric at a resolution below 0.000001 Da." [PubMed:18688235] residues isobaric at 71.037114 Da ; MOD:00570 def: "Natural or modified residues with a mass of 71.037114 Da." [PubMed:18688235] 2-pyrrolidone-5-carboxylic acid (Pro) ; MOD:00571 def: "A modification that effectively oxygenates C5 of an L-proline residue to form a 2-pyrrolidone-5-carboxylic acid, pyroglutamic acid." [OMSSA:111, PubMed:9252331, UniMod:359] oxidized arginine biotinylated with biotin hydrazide ; MOD:00572 def: "modification from UniMod Chemical derivative" [PubMed:15174056, PubMed:15828771, UniMod:343] oxidized lysine biotinylated with biotin hydrazide ; MOD:00573 def: "modification from UniMod Chemical derivative" [PubMed:15174056, UniMod:353] oxidized proline biotinylated with biotin hydrazide ; MOD:00574 def: "modification from UniMod Chemical derivative" [PubMed:15174056, UniMod:357] oxidized threonine biotinylated with biotin hydrazide ; MOD:00575 def: "modification from UniMod Chemical derivative" [PubMed:15174056, UniMod:361] crotonaldehyde ; MOD:00576 def: "modification from UniMod Other" [PubMed:11283024, UniMod:253] acetaldehyde +26 ; MOD:00577 def: "modification from UniMod Other" [PubMed:7744761, UniMod:254] acetaldehyde +28 ; MOD:00578 def: "modification from UniMod Other" [UniMod:255] propionaldehyde +40 ; MOD:00579 def: "modification from UniMod Other" [UniMod:256] propionaldehyde +42 ; MOD:00580 def: "OBSOLETE because entry removed from UniMod. Remap potentially to MOD:00579 propionaldehyde +40" [UniMod:257] is_obsolete: true (18)O monosubstituted residue ; MOD:00581 def: "A protein modification that effectively substitutes one (18)O atom for one (16)O atom." [OMSSA:87, PubMed:11467524, UniMod:258] 6x(13)C,2x(15)N labeled L-lysine ; MOD:00582 def: "A protein modification that effectively converts an L-lysine residue to 6x(13)C,2x(15)N labeled L-lysine." [OMSSA:181, PubMed:12716131, UniMod:259] thiophosphorylated residue ; MOD:00583 def: "A protein modification that effectively replaces a hydrogen atom with a thiophosphono group (H2PO2S, 'thiophosphate')." [PubMed:12110917, UniMod:260] 4-sulfophenyl isothiocyanate derivatized residue ; MOD:00584 def: "A protein modification produced by formation of an adduct with 4-sulfophenyl isothiocyanate." [PubMed:14689565, PubMed:14745769, PubMed:16526082, UniMod:261] deuterium trisubstituted residue ; MOD:00585 def: "A protein modification that effectively substitutes three (2)H deuterium atoms for three (1)H protium atoms." [UniMod:262] phosphorylation to pyridyl thiol ; MOD:00586 def: "modification from UniMod Chemical derivative" [UniMod:264] 6x(13)C,4x(15)N labeled L-arginine ; MOD:00587 def: "A protein modification that effectively converts an L-arginine residue to 6x(13)C, 4x(15)N labeled L-arginine." [OMSSA:137, PubMed:12716131, UniMod:267] 5x(13)C,1x(15)N labeled L-valine ; MOD:00588 def: "A protein modification that effectively converts an L-valine residue to 5x(13)C,1x(15)N labeled L-valine." [PubMed:12771378, UniMod:268#V] 1x(13)C,1x(15)N labeled L-phenylalanine ; MOD:00589 def: "A protein modification that effectively converts an L-phenylalanine residue to (13)C,(15)N labeled L-phenylalanine." [PubMed:12771378, UniMod:269] nucleophilic addtion to cytopiloyne ; MOD:00590 def: "modification from UniMod Chemical derivative" [PubMed:15549660, UniMod:270] nucleophilic addition to cytopiloyne+H2O ; MOD:00591 def: "modification from UniMod Chemical derivative" [PubMed:15549660, UniMod:271] sulfonation of N-terminal ; MOD:00592 def: "modification from UniMod Chemical derivative" [PubMed:12705581, PubMed:15732931, PubMed:16046801, UniMod:272] covalent modification of lysine by omega-maleimido alkanoyl N-hydroxysuccinimido esters ; MOD:00593 def: "modification from UniMod Chemical derivative" [UniMod:273] residues isobaric at 113.047678 Da ; MOD:00594 def: "Natural or modified resiues with a mass of 113.047678 Da." [PubMed:18688235] mannosylated residue ; MOD:00595 def: "A protein modification that effectively replaces a hydrogen atom with an manose group through a glycosidic bond" [PubMed:18688235] 4-(2-aminoethyl)benzenesulfonyl fluoride derivatized residue ; MOD:00596 def: "A protein modification that is produced by formation of an adduct with 4-(2-aminoethyl)benzenesulfonyl fluoride, AEBS." [DeltaMass:235, PubMed:8597590, UniMod:276] methyl methanethiosulfonate ; MOD:00597 def: "OBSOLETE because UniMod entry 277 redundant with UniMod 39. Remap to MOD:00110." [UniMod:277] is_obsolete: true S-(2-hydroxyethyl)cysteine ; MOD:00598 def: "A protein modification that effectively converts an L-cysteine residue to S-(2-hydroxyethyl)cysteine" [PubMed:15351294, UniMod:278] monomethylated residue ; MOD:00599 def: "A protein modification that effectively replaces one hydrogen atom with one methyl group." [PubMed:11875433, UniMod:34] L-glutamic acid 5-ethyl ester ; MOD:00600 def: "A protein modification that effectively converts an L-glutamic acid residue to L-glutamate 5-ethyl ester." [DeltaMass:0, PubMed:9629898, UniMod:280#E] cyclized residue ; MOD:00601 def: "A protein modification that effectively produces an heterocyclic amino acid with a covalent bond between the side chain and either its alpha amino or 1-carboxyl group, possibly breaking the peptide chain." [PubMed:18688235] N-methylated residue ; MOD:00602 def: "A protein modification that effectively replaces a hydrogen atom of a residue amino or imino group with an methyl group." [PubMed:18688235] N-ethylation ; MOD:00603 def: "OBSOLETE because UniMod entry 283 is redundant with UniMod 280. Remap to MOD:00600" [UniMod:283] is_obsolete: true 2x(2)H monomethylated L-lysine ; MOD:00604 def: "A protein modification that effectively converts an L-lysine residue to 2x(2)H labeled monomethylated L-lysine." [PubMed:15525938, UniMod:284] Sulfanilic Acid (SA), light C12 ; MOD:00605 def: "modification from UniMod Chemical derivative, C-Terminal/Glutamate/Aspartate sulfonation" [UniMod:285] Sulfanilic Acid (SA), heavy C13 ; MOD:00606 def: "modification from UniMod Chemical derivative" [PubMed:9254591, UniMod:286] dioxoindolealanine lactone ; MOD:00607 def: "modification from UniMod Chemical derivative" [PubMed:7949339, UniMod:288] biotin polyethyleneoxide amine ; MOD:00608 def: "modification from UniMod Chemical derivative" [UniMod:289] Pierce EZ-Link Biotin-HPDP ; MOD:00609 def: "modification from UniMod Chemical derivative" [UniMod:290] cysteinyl mercury ; MOD:00610 def: "modification from UniMod Chemical derivative" [PubMed:10695144, UniMod:291] iodouridine monophosphate derivatized residue ; MOD:00611 def: "A protein modification that is produced by reaction of iodouridine monophosphate, or a polynucleotide containing iodouridine, with a residue." [PubMed:11112526, PubMed:11567090, PubMed:6540775, UniMod:292] 3-(carboxamidomethylthio)propanoylated residue ; MOD:00612 def: "A protein modification that is produced by derivatization of a residue with 3,3-dithiobis[sulfosuccinimidyl propanoate], DTSSP, or with Pierce EZ-Link Sulfo-NHS-SS-Biotin reagent, sulfosuccinimidyl 3-[(2-[biotinamido]ethyl)disulfanyl]propanoate, followed by reduction with dithiothreitol and then reaction with iodoacetamide." [PubMed:15121203, UniMod:293] biotinoyl-iodoacetyl-ethylenediamine ; MOD:00613 def: "modification from UniMod Chemical derivative" [PubMed:10906242, UniMod:294] fucosylated ; MOD:00614 def: "A protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with a fucose (6-deoxy-D-galactose) group through a glycosidic bond." [PubMed:11344537, PubMed:15189151, UniMod:295] 4-sulfophenyl isothiocyante modification to N-term R ; MOD:00615 def: "OBSOLETE because entry UniMod:261 site N-term R was abandoned. Remap to MOD:00584" [PubMed:14689565, UniMod:261] is_obsolete: true residues isobaric at a resolution below 0.1 Da ; MOD:00616 def: "Natural or modified residues that are isobaric at a resolution below 0.1 Da." [PubMed:18688235] 3x(2)H residue methyl ester ; MOD:00617 def: "A protein modification that effectively converts a residue containing common isotopes to a 3x(2)H labeled residue methyl ester." [OMSSA:21, UniMod:298] tryptophan carboxylation ; MOD:00618 def: "modification from UniMod Chemical derivative" [UniMod:299#W] hydroxylethanone ; MOD:00619 def: "OBSOLETE because entry 300 is redundant with UniMod 6 remap to MOD:01328" [UniMod:300] is_obsolete: true cysteine monobromobimane derivative ; MOD:00620 def: "modification from UniMod Chemical derivative" [PubMed:7856876, UniMod:301] menadione quinone derivative ; MOD:00621 def: "modification from UniMod Chemical derivative" [PubMed:15939799, UniMod:302] cysteine mercaptoethanol ; MOD:00622 def: "modification from UniMod Chemical derivative" [DeltaMass:80, PubMed:12442261, UniMod:303] fucosylated biantennary (-2 galactose) ; MOD:00623 def: "modification from UniMod N-linked glycosylation" [UniMod:305] residues isobaric at 113.0-113.1 Da ; MOD:00624 def: "Natural or modified residues with a mass of 113.0-113.1 Da." [PubMed:18688235] N-methylmaleimide derivatized residue ; MOD:00625 def: "modification from UniMod Chemical derivative" [UniMod:314] fluorescein-5-thiosemicarbazide ; MOD:00626 def: "modification from UniMod Chemical derivative" [PubMed:2883911, UniMod:478] 2,5-dimethylpyrrole lysine from 2,5-hexanedione adduct ; MOD:00627 def: "modification from UniMod Chemical derivative" [UniMod:316] Hex2 ; MOD:00628 def: "a protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with two hexose sugar groups through glycosidic bonds" [PubMed:18688235] MDA adduct +62 ; MOD:00629 def: "modification from UniMod Chemical derivative" [UniMod:318] C3-H2-O adduct (+54 amu) of malondialdehyde with lysine or methylglyoxal with arginine. ; MOD:00630 def: "modification from UniMod Chemical derivative" [PubMed:9328283, UniMod:319] hydrolyzed N-ethylmaleimide adduct ; MOD:00631 def: "modification from UniMod Chemical derivative" [UniMod:320] N-succinimide ; MOD:00632 def: "OBSOLETE because this chemical derivative modification from UniMod 321 is deprecated." [UniMod:321] is_obsolete: true bis-N-I-sulfonerahodamine ; MOD:00633 def: "modification from UniMod Chemical derivative" [UniMod:323] dimethyl 3,3'-dithiobispropionimidate ; MOD:00634 def: "modification from UniMod Chemical derivative" [PubMed:770170, UniMod:324] 10-fluoroethoxyphosphinyl-N-(biotinamidopentyl)decanamide ; MOD:00635 def: "modification from UniMod Chemical derivative" [PubMed:10611275, UniMod:325] S-ethylcysteine (Ser) ; MOD:00636 def: "A protein modification that effectively converts an L-serine residue to S-ethylcysteine." [UniMod:327] 1x(13)C,3x(2)H labeled monomethylated L-arginine ; MOD:00637 def: "A protein modification that effectively replaces one hydrogen atom of an L-arginine residue with a (13)C,3x(2)H labeled methyl group to form a 1x(13)C,3x(2)H labeled monomethylated L-arginine." [UniMod:329] 2x(13)C,6x(2)H labeled dimethylated L-arginine ; MOD:00638 def: "A protein modification that effectively replaces two hydrogen atoms of an L-arginine residue with two (13)C,3x(2)H labeled methyl groups to form a 2x(13)C,6x(2)H labeled dimethylated L-arginine." [PubMed:15782174, UniMod:330] thiophosphate labeled with biotin-HPDP ; MOD:00639 def: "modification from UniMod Chemical derivative" [UniMod:332] 6-N-biotinylaminohexyl isopropyl phosphorofluoridate ; MOD:00640 def: "modification from UniMod Chemical derivative" [UniMod:333] CAMthiopropanoyl of Lys ; MOD:00641 def: "OBSOLETE because UniMod entry 334 is merged with UniMod 293. Remap to MOD:00612" [UniMod:334] is_obsolete: true reduced 4-hydroxynonenal adduct ; MOD:00642 def: "A protein modification produced by formation of an adduct of a residue with 4-hydroxynonenal artificially reduced by a reagent such as NaBH4." [PubMed:11910026, PubMed:15133838, UniMod:335] methylamine Michael addition derivatized residue ; MOD:00643 def: "modification from UniMod Artifact" [PubMed:11968134, UniMod:337] O-acetylated residue ; MOD:00644 def: "A protein modification that effectively replaces a residue hydroxyl group with an acetoxy group." [PubMed:18688235] S-acetylated residue ; MOD:00645 def: "A protein modification that effectively replaces a residue sulfanyl group with an acetylsulfanyl group." [PubMed:18688235] acetylated L-cysteine ; MOD:00646 def: "A protein modification that effectively converts an L-cysteine residue to either N-acetyl-L-cysteine or S-acetyl-L-cysteine." [PubMed:18688235] acetylated L-serine ; MOD:00647 def: "A protein modification that effectively converts an L-serine residue to either N-acetyl-L-serine, O-acetyl-L-serine, or N,O-diacetyl-L-serine." [PubMed:18688235] N,O-diacetylated L-serine ; MOD:00648 def: "A protein modification that effectively converts an L-serine residue to N,O-diacetyl-L-serine." [PubMed:16731519, PubMed:489587, PubMed:7309355, RESID:AA0051#var, RESID:AA0364#var] acylated residue ; MOD:00649 def: "A protein modification that effectively replaces a hydrogen atom with an acyl group." [PubMed:18688235] N-myristoylated residue ; MOD:00650 def: "A protein modification that effectively replaces a residue amino group with a myristoylamino group." [PubMed:18688235] N-palmitoylated residue ; MOD:00651 def: "A protein modification that effectively replaces a residue amino group with a palmitoylamino group." [PubMed:18688235] O-palmitoylated residue ; MOD:00652 def: "A protein modification that effectively replaces a residue hydroxyl group with a palmitoyloxy group." [PubMed:18688235] S-palmitoylated residue ; MOD:00653 def: "A protein modification that effectively replaces a residue sulfanyl group with an palmitoylsulfanyl group." [PubMed:18688235] S-methylated residue ; MOD:00654 def: "a protein modification that effectively replaces a sulfanyl group with a methylsulfanyl group" [PubMed:18688235] S-myristoylated residue ; MOD:00655 def: "A protein modification that effectively replaces a residue sulfanyl group with an myristoylsulfanyl group." [PubMed:18688235] C-methylated residue ; MOD:00656 def: "A protein modification that effectively replaces a residue hydrocarbyl hydrogen with an methyl group." [PubMed:18688235] L-glutamic acid 5-methyl ester (Gln) ; MOD:00657 def: "A protein modification that effectively converts an L-glutamine residue to L-glutamate 5-methyl ester." [PubMed:16888, PubMed:6300110, RESID:AA0072#GLN, UniMod:528] methylated arginine ; MOD:00658 def: "A protein modification that effectively converts an L-arginine residue to a methylated arginine, either 5-methylargine, N5-methylarginine, or an omega-N-methylated L-arginine." [PubMed:18688235] methylated glutamine ; MOD:00659 def: "A protein modification that effectively converts an L-glutamine residue to a methylated glutamine, either 2-methylated glutamine, N5-methylated glutamine, or methyl esterified deamidated glutamine." [PubMed:18688235] methylated cysteine ; MOD:00660 def: "A protein modification that effectively converts an L-cysteine residue to a methylated cysteine, either S-methylcysteine, or cysteine methyl ester." [PubMed:18688235] methylated histidine ; MOD:00661 def: "A protein modification that effectively converts an L-histidine residue to a methylated histidine, such as pros-methylhistidine, or tele-methylhistidine." [PubMed:18688235] methylated leucine ; MOD:00662 def: "A protein modification that effectively converts an L-leucine residue to a methylated leucine, either N-methylleucine, or leucine methyl ester." [PubMed:18688235] methylated lysine ; MOD:00663 def: "A protein modification that effectively converts an L-lysine residue to a methylated lysine." [PubMed:18688235] stereoisomerized residue ; MOD:00664 def: "A protein modification that effectively replaces a residue L-enantiomer (stereoisomer) with a D-enantiomer or with a different diastereomeric isomer." [PubMed:18688235] methylated alanine ; MOD:00665 def: "A protein modification that effectively converts an L-alanine residue to a methylated alanine, such as N-methylalanine, N,N-dimethylalanine, or N,N,N-trimethylalanine." [PubMed:18688235] octanoylated residue ; MOD:00666 def: "A protein modification that effectively replaces a hydrogen atom with an octanoyl group." [PubMed:18688235] decanoylated residue ; MOD:00667 def: "A protein modification that effectively replaces a hydrogen atom with a decanoyl group." [PubMed:18688235] O-decanoylated residue ; MOD:00668 def: "A protein modification that effectively replaces a residue hydroxyl group with a decanoyloxy group." [UniMod:449] O-octanoylated residue ; MOD:00669 def: "A protein modification that effectively replaces a residue hydroxyl group with a octanoyloxy group." [UniMod:426] N-acylated residue ; MOD:00670 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with an acyl group." [PubMed:18688235] O-acylated residue ; MOD:00671 def: "A protein modification that effectively replaces a residue hydroxyl group with a acyloxy group." [PubMed:18688235] S-acylated residue ; MOD:00672 def: "A protein modification that effectively replaces a residue sulfanyl group with an acylsulfanyl group." [PubMed:18688235] methylated asparagine ; MOD:00673 def: "A protein modification that effectively converts an L-asparagine residue to a methylated asparagine, such as N4-methyl-L-asparagine, or N4,N4-dimethyl-L-asparagine." [PubMed:18688235] amidated residue ; MOD:00674 def: "A protein modification that effectively replaces a carboxyl group with a carboxamido group." [PubMed:18688235] oxidized residue ; MOD:00675 def: "A protein modification that effectively either removes neutral hydrogen atoms (proton and electron), or adds oxygen atoms to a residue with or without the removal of hydrogen atoms." [PubMed:18688235] oxygenated residue ; MOD:00676 def: "A protein modification that effectively adds oxygen atoms to a residue with or without the removal of hydrogen atoms." [PubMed:18688235] hydroxylated residue ; MOD:00677 def: "A protein modification that effectively replaces a hydrogen atom with an hydroxyl group." [DeltaMass:0] hydroxylated proline ; MOD:00678 def: "A protein modification that effectively converts an L-proline residue to an hydroxylated L-proline." [PubMed:18688235] carbon oxygenated residue ; MOD:00679 def: "A protein modification that effectively adds oxygen atoms to a carbon atom of a residue and removes hydrogen atoms." [PubMed:18688235] sulfur oxygenated residue ; MOD:00680 def: "A protein modification that effectively adds oxygen atoms to a sulfur atom of a residue without removing hydrogen atoms." [PubMed:18688235] hydroxylated lysine ; MOD:00681 def: "A protein modification that effectively converts an L-lysine residue to a hydroxylated L-lysine." [PubMed:18688235] hydroxylated arginine ; MOD:00682 def: "A protein modification that effectively converts an L-arginine residue to a hydroxylated L-arginine." [PubMed:18688235] dehydrogenated residue ; MOD:00683 def: "A protein modification that effectively removes neutral hydrogen atoms (proton and electron) from a residue." [PubMed:18688235] deamidated L-asparagine ; MOD:00684 def: "A protein modification that effectively converts an L-asparagine residue to L-aspartic acid." [PubMed:1097438, PubMed:339692, PubMed:4399050, PubMed:5764436, PubMed:6692818, PubMed:8089117, PubMed:9521123, PubMed:9582379, RESID:AA0004#ASN, UniMod:7#N] deamidated L-glutamine ; MOD:00685 def: "A protein modification that effectively converts an L-glutamine residue to L-glutamic acid." [PubMed:1881881, PubMed:4565668, PubMed:4922541, PubMed:6692818, PubMed:9192900, PubMed:957425, RESID:AA0006#GLN, UniMod:7#Q] L-selenocysteine (Cys) ; MOD:00686 def: "A protein modification that effectively converts an L-cysteine residue to L-selenocysteine (not known as a natural, post-translational modification process)." [PubMed:10523135, PubMed:2037562, PubMed:2963330, PubMed:6217842, PubMed:6714945, RESID:AA0022#CYS, UniMod:162#C] thioether crosslinked residues ; MOD:00687 def: "A protein modification that crosslinks two residues by formation of a thioether bond between a cysteine thiol and either an alkyl C as in lanthionine, or an aryl C as 2'-(S-cysteinyl)-L-histidine." [PubMed:18688235] isopeptide crosslinked residues ; MOD:00688 def: "A protein modification that crosslinks two residues with an amide bond where either the donor amino or carboxyl is not an alpha group." [PubMed:18688235] disulfide crosslinked residues ; MOD:00689 def: "A protein modification that crosslinks two cysteine residues by formation of a disulfide bond." [PubMed:18688235] oxazole/thiazole ring crosslinked residues ; MOD:00690 def: "A protein modification that crosslinks two residues by formation of an oxazole or thiazole ring." [PubMed:18688235] 5-imidazolinone ring crosslinked residues ; MOD:00691 def: "A protein modification that crosslinks two residues by formation of an 5-imidazolinone ring." [PubMed:18688235] uncategorized crosslinked residues ; MOD:00692 def: "A protein crosslink modification that is not chemically categorized." [PubMed:18688235] glycosylated residue ; MOD:00693 def: "A protein modification that effectively replaces a hydrogen atom with an carbohydrate-like group through a glycosidic bond." [PubMed:18688235] halogen containing residue ; MOD:00694 def: "A protein modification that effectively substitutes a halogen atom for a hydrogen atom." [PubMed:18688235] sulfated residue ; MOD:00695 def: "A protein modification that effectively substitutes a sulfonyl group for the hydrogen atom of a hydroxyl or sulfanyl group." [DeltaMass:0, PubMed:14752058, UniMod:40] phosphorylated residue ; MOD:00696 def: "A protein modification that effectively replaces a hydrogen atom with a phosphono group (H2PO3 or 'phosphate')." [DeltaMass:0, UniMod:21] flavin modified residue ; MOD:00697 def: "A protein modification that effectively results from forming an adduct with a compound containing a flavin group." [UniMod:50] metal or metal cluster containing modified residue ; MOD:00698 def: "A protein modification that effectively substitutes a metal atom or a metal cluster for hydrogen atoms, or coordinates a metal ion." [PubMed:18688235] porphyrin modified residue ; MOD:00699 def: "A protein modification that effectively results from forming an adduct with a compound containing a porphyrin group." [PubMed:18688235] tetrapyrrole modified residue ; MOD:00700 def: "A protein modification that effectively results from forming an adduct with a compound containing a tetrapyrrole group." [PubMed:18688235] nucleotide or nucleic acid modified residue ; MOD:00701 def: "A protein modification that effectively results from forming an adduct with a compound containing a nucleotide or a polynucleotide through formation of either a phosphodiester bond, a phosphoramide ester bond, or a glycosidic bond." [PubMed:18688235] isotope labeled residue ; MOD:00702 def: "A protein modification that effectively substitutes atoms of particular common isotopes with atoms or groups containing isotopes that are not the most common." [PubMed:18688235] isoprenylated residue ; MOD:00703 def: "A protein modification that effectively replaces a hydrogen atom with a group derived from an isoprene polymer, such as a geranyl (C10), farnesyl (C15) or geranylgeranyl (C20) group." [PubMed:18688235] dehydrated residue ; MOD:00704 def: "A protein modification that effectively forms a double bond by removing a molecule of water from a residue." [DeltaMass:0, UniMod:23] D-valine ; MOD:00705 def: "A protein modification that effectively converts an L-valine residue to D-valine." [ChEBI:30016, PubMed:15853325, RESID:AA0200] dehydrogenated tyrosine ; MOD:00706 def: "A protein modification that effectively converts L-tyrosine to 2,3-didehydrotyrosine." [UniMod:401#Y] hydroxylated tyrosine ; MOD:00707 def: "a protein modification that effectively converts an L-tyrosine residue to a multihydroxylated L-phenylalanine" [PubMed:18688235] sulfur oxygenated L-cysteine ; MOD:00708 def: "A protein modification that effectively adds oxygen atoms to a sulfur atom of L-cysteine residue without removing hydrogen atoms." [PubMed:18688235] sulfur oxygenated L-methionine ; MOD:00709 def: "A protein modification that effectively adds oxygen atoms to a sulfur atom of L-methionine residue without removing hydrogen atoms." [PubMed:18688235] protonated-dimethylated residue ; MOD:00710 def: "A protein modification that effectively adds a proton and replaces two hydrogen atoms with two methyl groups." [PubMed:18688235] trimethylated protonated-residue ; MOD:00711 def: "A protein modification that effectively replaces three hydrogen atoms with three methyl groups, after a proton has been added to form an aminium group." [PubMed:18688235] methylated proline ; MOD:00712 def: "A protein modification that effectively converts an L-proline residue to a methylated proline, such as N,N-dimethylproline." [PubMed:18688235] methylated glutamic acid ; MOD:00713 def: "A protein modification that effectively converts an L-glutamic acid residue to a methylated glutamic acid, such as L-glutamate 5-methyl ester." [PubMed:18688235] methylated glycine ; MOD:00714 def: "A protein modification that effectively converts a glycine residue to a methylated glycine, such as N-methylglycine." [PubMed:18688235] methylated isoleucine ; MOD:00715 def: "A protein modification that effectively converts an L-isoleucine residue to a methylated isoleucine residue, such as N-methyl-L-isoleucine." [PubMed:18688235] methylated methionine ; MOD:00716 def: "A protein modification that effectively converts an L-methionine residue to a methylated methionine, such as N-methyl-L-methionine." [PubMed:18688235] methylated phenylalanine ; MOD:00717 def: "A protein modification that effectively converts an L-phenylalanine residue to a methylated phenylalanine, such as N-methyl-L-phenylalanine." [PubMed:18688235] methylated tyrosine ; MOD:00718 def: "A protein modification that effectively converts an L-tyrosine residue to a methylated tyrosine, such as N-methyl-L-tyrosine." [PubMed:18688235] L-methionine sulfoxide ; MOD:00719 def: "A protein modification that oxygenates an L-methionine residue to one of the diastereomeric L-methionine sulfoxide residues." [DeltaMass:177, OMSSA:1, PubMed:21406390, PubMed:22116028, RESID:AA0581, UniMod:35#M] L-methionine (R)-sulfoxide ; MOD:00720 def: "A protein modification that effectively oxygenates an L-methionine residue to L-methionine sulfoxide R-diastereomer." [ChEBI:45764, PubMed:21406390, PubMed:22116028, PubMed:23911929, RESID:AA0581] L-methionine (S)-sulfoxide ; MOD:00721 def: "A protein modification that effectively oxygenates an L-methionine residue to L-methionine sulfoxide S-diastereomer." [PubMed:18688235] monomethylated L-glutamine ; MOD:00722 def: "A protein modification that effectively replaces one hydrogen atom of an L-glutamine residue with one methyl group." [OMSSA:14, UniMod:34#Q] N-acetylated L-lysine ; MOD:00723 def: "A protein modification that effectively converts an L-lysine residue to either N2-acetyl-L-lysine, or N6-acetyl-L-lysine." [PubMed:18688235] N-methylated L-histidine ; MOD:00724 def: "A protein modification that effectively replaces one hydrogen atom on a nitrogen of an L-histidine residue with one methyl group." [OMSSA:74, UniMod:34#H] complex glycosylation ; MOD:00725 def: "A protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with a carbohydrate-like group linked through a glycosidic bond." [PubMed:18688235] glucosylated ; MOD:00726 def: "A protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with a glucose group through a glycosidic bond." [PubMed:18688235] mannosylated ; MOD:00727 def: "A protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with a mannose group through a glycosidic bond," [PubMed:18688235] galactosylated ; MOD:00728 def: "A protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with a galactose group through a glycosidic bond." [PubMed:18688235] pentosylated residue ; MOD:00729 def: "a protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with a pentose sugar group through a glycosidic bond" [DeltaMass:172] arabinosylated ; MOD:00730 def: "a protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with a arabinose sugar group through a glycosidic bond" [PubMed:18688235] ribosylated ; MOD:00731 def: "a protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with a ribose sugar group through a glycosidic bond" [PubMed:18688235] xylosylated ; MOD:00732 def: "a protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with a xylose sugar group through a glycosidic bond" [PubMed:18688235] N-acetylaminoglucosylated ; MOD:00733 def: "A protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with an N-acetylglucosamine group through a glycosidic bond." [PubMed:18688235] N-acetylaminogalactosylated ; MOD:00734 def: "A protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with an N-acetylgalactosamine group through a glycosidic bond." [DeltaMass:247] hexosuronylated ; MOD:00735 def: "A protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with a hexosuronic acid group through a glycosidic bond." [PubMed:18688235] deoxyhexosylated ; MOD:00736 def: "a protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with a deoxyhexose group through a glycosidic bond" [DeltaMass:0] N-acetylneuraminylated ; MOD:00737 def: "A protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with an N-acetylneuraminic acid (sialic acid) group through a glycosidic bond." [DeltaMass:0] iron containing modified residue ; MOD:00738 def: "A protein modification that effectively substitutes an iron atom or a cluster containing iron for hydrogen atoms, or that coordinates an iron ion." [PubMed:18688235] iron-sulfur cluster containing modification ; MOD:00739 def: "A protein modification that effectively substitutes a cluster of iron and sulfur atoms for hydrogen atoms." [PubMed:18688235] manganese containing modified residue ; MOD:00740 def: "A protein modification that effectively substitutes a manganese atom or a cluster containing manganese for hydrogen atoms, or that coordinates a manganese ion." [PubMed:18688235] nickel containing modified residue ; MOD:00741 def: "A protein modification that effectively substitutes a nickel atom or a cluster containing nickel for hydrogen atoms, or that coordinates a nickel ion." [PubMed:18688235] copper containing modified residue ; MOD:00742 def: "A protein modification that effectively substitutes a copper atom or a cluster containing copper for hydrogen atoms, or that coordinates a copper ion." [PubMed:18688235] molybdenum containing modified residue ; MOD:00743 def: "A protein modification that effectively substitutes a molybdenum atom or a cluster containing molybdenum for hydrogen atoms, or that coordinates a molybdenum ion." [PubMed:18688235] molybdenum pterin containing modification ; MOD:00744 def: "A protein modification containing a molybdenum atom in a pterin ring system." [PubMed:18688235] selenium containing residue ; MOD:00745 def: "A protein modification that effectively substitutes a selenium atom or a cluster containing selenium for hydrogen atoms." [PubMed:18688235] tungsten containing modified residue ; MOD:00746 def: "A protein modification that effectively substitutes a tungsten atom or a cluster containing tungsten for hydrogen atoms, or that coordinates a tungsten ion." [PubMed:18688235] sodium containing modified residue ; MOD:00747 def: "A protein modification that effectively substitutes a sodium atom for a hydrogen atom." [PubMed:18688235] pterin modified residue ; MOD:00748 def: "A protein modification that effectively results from forming an adduct with a compound containing a pterin group." [PubMed:18688235] sulfur substitution for oxygen ; MOD:00749 def: "A protein modification that effectively substitutes a sulfur atom for an oxygen atom." [PubMed:18688235] deoxyribonucleic acid linked residue ; MOD:00750 def: "A protein modification that effectively crosslinks an amino acid residue and the 3'- or 5'-end of DNA through a phosphodiester bond." [PubMed:18688235] ribonucleic acid linked residue ; MOD:00751 def: "a protein modification" [PubMed:18688235] adenosine diphosphoribosyl (ADP-ribosyl) modified residue ; MOD:00752 def: "A protein modification that effectively results from forming an adduct with ADP-ribose through formation of a glycosidic bond." [DeltaMass:0] chlorinated residue ; MOD:00753 def: "A protein modification that effectively substitutes a chlorine atom for a hydrogen atom." [PubMed:18688235] brominated residue ; MOD:00754 def: "A protein modification that effectively substitutes a bromine atom for a hydrogen atom." [PubMed:18688235] iodinated residue ; MOD:00755 def: "A protein modification that effectively substitutes an iodine atom of a residue for a hydrogen atom." [PubMed:18688235] 4-hydroxy-D-valine ; MOD:00756 def: "A protein modification that effectively converts an L-valine residue to 4-hydroxy-D-valine." [PubMed:15853325, RESID:AA0388] O4-galactosyl-L-hydroxyproline ; MOD:00757 def: "A protein modification that effectively converts an L-proline residue to O4-galactosyl-L-hydroxyproline." [RESID:AA0389] O4-(N-acetylamino)glucosyl-L-hydroxyproline ; MOD:00758 def: "A protein modification that effectively converts an L-proline residue to O4-(N-acetylamino)glucosyl-L-hydroxyproline." [PubMed:15238247, PubMed:9660787, RESID:AA0390] fucosylated biantennary (-1 galactose) ; MOD:00759 def: "modification from UniMod N-linked glycosylation" [UniMod:307] biantennary ; MOD:00760 def: "modification from UniMod N-linked glycosylation - missing ref" [UniMod:311] monohexosylated (Hex1) ; MOD:00761 def: "A protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with one hexose sugar group through a glycosidic bond." [PubMed:18688235] biantennary (-2 galactose) ; MOD:00762 def: "modification from UniMod N-linked glycosylation - missing ref" [UniMod:309] biantennary (-1 galactose) ; MOD:00763 def: "modification from UniMod N-linked glycosylation - missing ref" [UniMod:310] glycoconjugated residue ; MOD:00764 def: "A protein modification that effectively results from forming an adduct with a carbohydrate-like group either through enzymatic formation of a glycosidic bond, or through non-enzymatic glycation formation of a Schiff-base or an Amadori ketosamine residue adduct." [PubMed:18688235, PubMed:3743566] cysteinylation (disulfide with free L-cysteine) ; MOD:00765 def: "A protein modification that effectively converts an L-cysteine residue to S-(L-cysteinyl)-L-cysteine, forming a disulfide bond with free cysteine." [DeltaMass:260, PubMed:1988019, PubMed:2001356, PubMed:2076469, PubMed:3083866, PubMed:366603, PubMed:7918467, PubMed:8344916, RESID:AA0025#CYS1, UniMod:312] C terminal -K from HC of MAb ; MOD:00766 def: "modification from UniMod Post-translational - C-terminal loss of lysine" [PubMed:16078144, UniMod:313] glycated residue ; MOD:00767 def: "A modification produced in a non-enzymatic reaction between a carbohydrate carbonyl group (C1 of aldohexose or C2 of fructose) and a protein amino group to form a Schiff-base or an Amadori ketosamine residue adduct." [PubMed:18688235] methionine oxidation with neutral loss of 80 Da ; MOD:00768 def: "Oxidation of methionine to methionine sulfone with neutral loss of CH3SO2H." [PubMed:18688235, PubMed:9004526] residues isobaric at 71.0-71.1 Da ; MOD:00769 def: "Natural or modified residues with a mass of 71.0-71.1 Da." [PubMed:18688235] residues isobaric at a resolution below 0.01 Da ; MOD:00770 def: "Natural or modified residues that are isobaric at a resolution below 0.01 Da." [PubMed:18688235] residues isobaric at 166.98-167.00 Da ; MOD:00771 def: "Natural or modified residues with a mass of 166.98-167.00 Da." [PubMed:18688235] vanadium containing modified residue ; MOD:00772 def: "A protein modification that effectively substitutes a vanadium atom or a cluster containing vanadium for hydrogen atoms, or that coordinates a vanadium ion." [PubMed:18688235] residues isobaric at 181.00-181.02 Da ; MOD:00773 def: "Natural or modified residues with a mass of 181.00-181.02 Da." [PubMed:18688235] residues isobaric at 243.02-243.03 Da ; MOD:00774 def: "Natural or modified residues with a mass of 243.02-243.03 Da." [PubMed:18688235] L-asparagine (His) ; MOD:00775 def: "An artifactual protein modification that converts an L-histidine residue to L-asparagine by oxidative degradation." [OMSSA:54, PubMed:9252331, UniMod:348] L-aspartic acid (His) ; MOD:00776 def: "An artifactual protein modification that converts an L-histidine residue to L-aspartic acid by oxidative degradation." [OMSSA:55, PubMed:9252331, UniMod:349] residues isobaric at 182.96-182.98 Da ; MOD:00777 def: "Natural or modified residues with a mass of 182.96-182.98 Da." [PubMed:18688235] residues isobaric at 182.9-183.0 Da ; MOD:00778 def: "Natural or modified residues with a mass of 182.9-183.0 Da." [PubMed:18688235] lysine oxidation to aminoadipic semialdehyde ; MOD:00779 def: "OBSOLETE because redundant with MOD:00130. Remap to MOD:00130." [DeltaMass:352, PubMed:11332453, PubMed:358196, PubMed:5337886, PubMed:5529814, UniMod:352] is_obsolete: true N-acetyl-L-asparagine ; MOD:00780 def: "A protein modification that effectively converts an L-asparagine residue to N-acetyl-L-asparagine." [PubMed:18688235] N2-acetyl-L-histidine ; MOD:00781 def: "A protein modification that effectively converts an L-histidine residue to N2-acetyl-L-histidine." [PubMed:18688235] N-acetyl-L-leucine ; MOD:00782 def: "A protein modification that effectively converts an L-leucine residue to N-acetyl-L-leucine." [PubMed:18688235] dimethylated L-arginine ; MOD:00783 def: "A protein modification that effectively replaces two hydrogen atoms of an L-arginine residue with two methyl groups." [OMSSA:37, UniMod:36#R] N-acetyl-L-phenylalanine ; MOD:00784 def: "A protein modification that effectively converts an L-phenylalanine residue to N-acetyl-L-phenylalanine." [PubMed:18688235] N2-acetyl-L-tryptophan ; MOD:00785 def: "A protein modification that effectively converts an L-tryptophan residue to N2-acetyl-L-tryptophan." [PubMed:18688235] deuterium substituted residue ; MOD:00786 def: "A protein modification that effectively substitutes one or more (2)H deuterium atoms for (1)H protium atoms." [PubMed:18688235] diisopropylphosphoserine ; MOD:00787 def: "modification from UniMod - label for the active site serine of the serine esterase/protease family also shown to label tyrosine in serum albumin" [UniMod:362] isopropylphosphotyrosine ; MOD:00788 def: "modification from UniMod" [UniMod:363] Bruker Daltonics SERVA-ICPL(TM) quantification chemistry, heavy form ; MOD:00789 def: "modification from UniMod - isotopic label ICPL method - The paper describes an H/D labeling strategy whereas the commercial product follows a C/13C labeling strategy. The digest is typically applied AFTER ICPL_light/heavy labeling, only Protein N-term labeling and Lys-specific labeling is applied." [PubMed:15602776, UniMod:364, URL:http\://www.serva.de/products/sheets/39230-E.pdf] Bruker Daltonics SERVA-ICPL(TM) quantification chemistry, light form ; MOD:00790 def: "modification from UniMod - isotopic label ICPL method - The paper describes an H/D labeling strategy whereas the commercial product follows a C/13C labeling strategy. The digest is typically applied AFTER ICPL_light/heavy labeling, only Protein N-term labeling and Lys-specific labeling is applied." [PubMed:15602776, UniMod:365, URL:http\://www.serva.de/products/sheets/39230-E.pdf] 1x(18)O labeled deamidated L-glutamine ; MOD:00791 def: "A protein modification that effectively converts an L-glutamine residue to L-glutamic acid with one (18)O." [PubMed:8382902, UniMod:366#Q] deuterium monosubstituted residue ; MOD:00792 def: "A protein modification that effectively substitutes one (2)H deuterium atom for one (1)H protium atom." [PubMed:18688235] dehydroalanine (Cys) ; MOD:00793 def: "A protein modification that effectively converts an L-cysteine residue to dehydroalanine." [ChEBI:17123, DeltaMass:8, PubMed:10220322, PubMed:11212008, PubMed:1547888, PubMed:15799070, PubMed:1815586, PubMed:20805503, PubMed:2914619, PubMed:7947813, PubMed:8239649, RESID:AA0181#CYS, UniMod:368] pyrrolidone from proline ; MOD:00794 def: "OBSOLETE because redundant and identical to MOD:00477. Remap to MOD:00477." [PubMed:9252331, UniMod:369] is_obsolete: true Michael addition of hydroxymethylvinyl ketone to cysteine ; MOD:00795 def: "modification from UniMod" [PubMed:11743741, UniMod:371] L-ornithine (Arg) ; MOD:00796 def: "A protein modification that effectively converts an L-arginine residue to L-ornithine." [DeltaMass:129, OMSSA:163, PubMed:15489230, UniMod:372] 2-(S-L-cysteinyl)pyruvic acid O-phosphothioketal ; MOD:00797 def: "a protein modification that effectively converts an L-cysteine residue to the PEP adduct, 2-(S-L-cysteinyl)pyruvic acid O-phosphothioketal" [PubMed:4696757, PubMed:7999765, PubMed:8664284, RESID:AA0391] half cystine ; MOD:00798 def: "A protein modification that can be regarded as effectively either one half of a cystine cross-link, or a cysteine residue with one hydrogen atom or proton removed." [PubMed:1988019, PubMed:2001356, PubMed:2076469, PubMed:3083866, PubMed:366603, PubMed:7918467, PubMed:8344916, UniMod:374] S-galactosyl-L-cysteine ; MOD:00799 def: "A protein modification that effectively converts an L-cysteine residue to S-galactosyl-L-cysteine." [PubMed:11945907, RESID:AA0392] L-cysteinyl-L-histidino-homocitryl vanadium heptairon nonasulfide ; MOD:00800 def: "A protein modification that effectively converts an L-cysteine residue, an L-histidine residue, homocitric acid and a one-vanadium seven-iron nine-sulfur cluster to L-cysteinyl-L-histidino-homocitryl vanadium heptairon nonasulfide." [PubMed:2345152, RESID:AA0393] L-cysteinyl-L-histidino-homocitryl octairon nonasulfide ; MOD:00801 def: "A protein modification that effectively converts an L-cysteine residue, an L-histidine residue, homocitric acid and an eight-iron nine-sulfur cluster to L-cysteinyl-L-histidino-homocitryl octairon nonasulfide." [PubMed:8392330, RESID:AA0394] L-histidino vanadium tetraoxide ; MOD:00802 def: "a protein modification that effectively converts an L-histidine residue to L-histidino vanadium tetraoxide" [PubMed:10543953, PubMed:16494433, PubMed:8552646, RESID:AA0395] 3-(S-L-cysteinyl)-L-tyrosine ; MOD:00803 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-tyrosine residue by a thioether bond to form 3-(S-L-cysteinyl)-L-tyrosine." [PubMed:15342250, RESID:AA0396] O-glucosyl-L-serine ; MOD:00804 def: "A protein modification that effectively converts an L-serine residue to O3-beta-glucosylated L-serine." [PubMed:10734111, PubMed:2105311, PubMed:2511201, RESID:AA0397] O-(N-acetylamino)glucosyl-L-serine ; MOD:00805 def: "A protein modification that effectively converts an L-serine residue to O3-(N-acetylaminoglucosyl)-L-serine." [PubMed:3086323, PubMed:8404891, RESID:AA0398] O-(N-acetylamino)glucosyl-L-threonine ; MOD:00806 def: "A protein modification that effectively converts an L-threonine residue to O3-(N-acetylaminoglucosyl)-L-threonine." [PubMed:3086323, PubMed:8404891, RESID:AA0399] pyruvic acid (Ser) ; MOD:00807 def: "A protein modification that effectively converts an L-serine residue to pyruvic acid." [DeltaMass:23, PubMed:10085076, PubMed:3042771, PubMed:8464063, RESID:AA0127#SER, UniMod:385#S] O-galactosyl-L-serine ; MOD:00808 def: "A protein modification that effectively converts an L-serine residue to O3-galactosylserine." [PubMed:666730, RESID:AA0400] O-galactosyl-L-threonine ; MOD:00809 def: "A protein modification that effectively converts an L-threonine residue to O3-galactosylthreonine." [PubMed:2673008, RESID:AA0401] O-mannosyl-L-serine ; MOD:00810 def: "A protein modification that effectively converts an L-serine residue to O3-mannosylserine." [PubMed:391559, RESID:AA0402] O-mannosyl-L-threonine ; MOD:00811 def: "a protein modification that effectively forms a O3-mannosylthreonine" [PubMed:391559, RESID:AA0403] O-fucosyl-L-serine ; MOD:00812 def: "A protein modification that effectively converts an L-serine residue to an O-fucosylserine." [PubMed:10734111, PubMed:11067851, PubMed:11344537, PubMed:12096136, PubMed:1517205, PubMed:15189151, PubMed:1904059, PubMed:3311742, PubMed:3578767, RESID:AA0404, UniMod:295#S] O-fucosyl-L-threonine ; MOD:00813 def: "A protein modification that effectively converts an threonine residue to an O-fucosylthreonine." [PubMed:11344537, PubMed:11857757, PubMed:15189151, PubMed:1740125, PubMed:1900431, RESID:AA0405, UniMod:295#T] O-xylosyl-L-serine ; MOD:00814 def: "A protein modification that effectively converts an L-serine residue to O3-xylosylserine." [PubMed:8747463, RESID:AA0406] molybdopterin ; MOD:00815 def: "OBSOLETE because redundant with MOD:00151. Remap to MOD:00151." [PubMed:14527393, PubMed:7878465, PubMed:9428520] is_obsolete: true S-stearoyl-L-cysteine ; MOD:00816 def: "A protein modification that effectively converts an L-cysteine residue to S-stearoyl-L-cysteine." [DeltaMass:0, PubMed:2371783, PubMed:3143715, PubMed:8761467, RESID:AA0407] 3'-geranyl-2',3'-dihydro-2',N2-cyclo-L-tryptophan ; MOD:00817 def: "A protein modification that effectively converts an L-tryptophan residue to 3'-geranyl-2',3'-dihydro-2',N2-cyclo-L-tryptophan." [ChEBI:35304, PubMed:16407988, PubMed:8168130, RESID:AA0408] glycosylphosphatidylinositolated residue ; MOD:00818 def: "A protein modification that effectively converts a residue to a glycosylphosphatidylinositolethanolamidated." [PubMed:12643538, UniMod:394#C-term] L-2-aminobutanoic acid (Glu) ; MOD:00819 def: "A protein modification that effectively converts an L-glutamic acid residue to L-2-aminobutanoic acid." [ChEBI:35619, DeltaMass:0, PubMed:11740505, RESID:AA0409] 2-imino-alanine 5-imidazolinone glycine ; MOD:00820 def: "A protein modification that effectively crosslinks an L-aspartic acid residue and a glycine residue to form 2-imino-alanine 5-imidazolinone glycine." [PubMed:16627946, RESID:AA0410] S-(L-alanyl)-L-cysteine ; MOD:00821 def: "A protein modification that effectively crosslinks an L-alanine residue and an L-cysteine residue by a thioester bond to form S-(L-alanyl)-L-cysteine." [PubMed:11807079, RESID:AA0411] S-(L-leucyl)-L-cysteine ; MOD:00822 def: "A protein modification that effectively crosslinks an L-leucine residue and an L-cysteine residue by a thioester bond to form S-(L-leucyl)-L-cysteine." [PubMed:12591958, RESID:AA0412] S-(L-methionyl)-L-cysteine ; MOD:00823 def: "A protein modification that effectively crosslinks an L-methionine residue and an L-cysteine residue by a thioester bond to form S-(L-methionyl)-L-cysteine." [PubMed:12146974, RESID:AA0413] dehydroalanine (Tyr) ; MOD:00824 def: "A protein modification that effectively converts an L-tyrosine residue to dehydroalanine." [PubMed:10220322, PubMed:1547888, PubMed:1815586, PubMed:2914619, PubMed:6838602, PubMed:7947813, PubMed:8239649, RESID:AA0181#TYR, UniMod:400] S-(L-phenylalanyl)-L-cysteine ; MOD:00825 def: "A protein modification that effectively crosslinks an L-phenylalanine residue and an L-cysteine residue by a thioester bond to form S-(L-phenylalaninyl)-L-cysteine." [PubMed:12591958, RESID:AA0414] S-(L-threonyl)-L-cysteine ; MOD:00826 def: "A protein modification that effectively crosslinks an L-threonine residue and an L-cysteine residue by a thioester bond to form S-(L-threonyl)-L-cysteine." [PubMed:15268951, RESID:AA0415] S-(L-tyrosyl)-L-cysteine ; MOD:00827 def: "A protein modification that effectively crosslinks an L-tyrosine residue and an L-cysteine residue by a thioester bond to form S-(L-tyrosyl)-L-cysteine." [PubMed:11807079, RESID:AA0416] S-(L-tryptophanyl)-L-cysteine ; MOD:00828 def: "A protein modification that effectively crosslinks an L-tryptophan residue and an L-cysteine residue by a thioester bond to form S-(L-tryptophanyl)-L-cysteine." [PubMed:16030216, RESID:AA0417] O-(L-phenylalanyl)-L-serine ; MOD:00829 def: "A protein modification that effectively crosslinks an L-phenylalanine residue and an L-serine residue by an ester bond to form S-(L-phenylalaninyl)-L-serine." [PubMed:12591958, RESID:AA0418] N-methyl-L-proline ; MOD:00830 def: "A protein modification that effectively converts an L-proline residue to an N-methyl-L-proline." [PubMed:3127388, RESID:AA0419] N4-(N-acetylamino)glucosyl-L-asparagine ; MOD:00831 def: "A protein modification that effectively converts an L-asparagine residue to N4-(N-acetylaminoglucosyl)-L-asparagine." [PubMed:111247, PubMed:1694179, PubMed:5490222, RESID:AA0151#var] N4-(N-acetylamino)galactosyl-L-asparagine ; MOD:00832 def: "A protein modification that effectively converts an L-asparagine residue to N4-(N-acetaminogalactosyl)-L-asparagine." [PubMed:8262914, RESID:AA0420] N4-glucosyl-L-asparagine ; MOD:00833 def: "A protein modification that effectively converts an L-asparagine residue to N4-glucosyl-asparagine." [PubMed:1569073, PubMed:3410849, RESID:AA0421] O-(N-acetylamino)fucosyl-L-serine ; MOD:00834 def: "A protein modification that effectively converts an L-serine residue to O3-(N-acetamino)fucosylserine." [PubMed:11342554, PubMed:12010970, RESID:AA0422] L-3-oxoalanine (Ser) ; MOD:00835 def: "A protein modification that effectively converts an L-serine residue to L-oxoalanine." [DeltaMass:349, PubMed:14563551, PubMed:7628016, PubMed:8681943, PubMed:9276974, PubMed:9478923, RESID:AA0185#SER, UniMod:401#S] deuterium disubstituted residue ; MOD:00836 def: "A protein modification that effectively substitutes two (2)H deuterium atoms for two (1)H protium atoms." [PubMed:18688235] deuterium tetrasubstituted residue ; MOD:00837 def: "A protein modification that effectively substitutes four (2)H deuterium atoms for four (1)H protium atoms." [PubMed:18688235] 3x(2)H labeled L-leucine ; MOD:00838 def: "A protein modification that effectively substitutes three (1)H protium atoms with three (2)H deuterium atoms to produce 3x(2)H labeled L-leucine." [UniMod:262#L] (2)H deuterium labeled residue ; MOD:00839 def: "A protein modification that effectively substitutes atoms of particular common isotopes with atoms of or groups containing deuteriumm, (2)H." [PubMed:18688235] isocyanate reagent derivatized residue ; MOD:00840 def: "A protein modification produced by formation of an adduct with an isocyanate compound." [PubMed:18688235] isothiocyanate reagent derivatized residue ; MOD:00841 def: "A protein modification produced by formation of an adduct with an isothiocyanate compound." [PubMed:18688235] (13)C labeled residue ; MOD:00842 def: "A protein modification that effectively substitutes atoms of particular common isotopes with atoms of or groups containing (13)C." [PubMed:18688235] (15)N labeled residue ; MOD:00843 def: "A protein modification that effectively substitutes atoms of particular common isotopes with atoms of or groups containing (15)N." [PubMed:18688235] (18)O labeled residue ; MOD:00844 def: "A protein modification that effectively substitutes atoms of particular common isotopes with atoms of or groups containing (18)O." [PubMed:18688235] (18)O substituted residue ; MOD:00845 def: "A protein modification that effectively substitutes one or more (18)O atoms for (16)O atoms." [PubMed:18688235] levuglandinyl (prostaglandin H2) adduct ; MOD:00846 def: "stub" [PubMed:18688235] (18)O disubstituted residue ; MOD:00847 def: "A protein modification that effectively substitutes two (18)O atom for two (16)O atoms." [PubMed:18688235] reagent derivatized residue ; MOD:00848 def: "A protein modification that is produced by formation of an adduct with a particular compound used as a reagent." [PubMed:18688235] potassium containing modified residue ; MOD:00849 def: "A protein modification that effectively substitutes a potassium atom for a hydrogen atom." [PubMed:18688235] unnatural residue ; MOD:00850 def: "A protein modification that inserts or replaces a residue with an unnatural residue that is not considered to be derived from a natural residue by some chemical process." [PubMed:18688235] (18)O labeled deamidated residue ; MOD:00851 def: "A protein modification that effectively replaces a carboxamido group with a carboxyl group labeled with (18)O." [PubMed:18688235] 1x(18)O labeled deamidated residue ; MOD:00852 def: "A protein modification that effectively replaces a carboxamido group with a carboxyl group labeled with one (18)O." [PubMed:8382902, UniMod:366] 2x(18)O labeled deamidated residue ; MOD:00853 def: "A protein modification that effectively replaces a carboxamido group with a carboxyl group labeled with two (18)O." [PubMed:18688235] protonated L-lysine (L-lysinium) residue ; MOD:00854 def: "A protein modification that effectively converts an L-lysine to L-lysinium (protonated L-lysine)." [PubMed:18688235] N6,N6,N6-trimethyl-L-lysine (from L-lysinium residue) ; MOD:00855 def: "A protein modification that effectively converts an L-lysinium (N6-protonated L-lysine) residue to an N6,N6,N6-trimethyl-L-lysine." [DeltaMass:0, OMSSA:15, PubMed:12590383, PubMed:3145979, PubMed:4304194, PubMed:6778808, PubMed:7093227, PubMed:8453381, UniMod:37#K] protonated L-alanine (L-alaninium) residue ; MOD:00856 def: "A protein modification that effectively converts an L-alanine residue to an L-alaninium (protonated L-alanine)." [PubMed:18688235] N,N,N-trimethyl-L-alanine (from L-alaninium) ; MOD:00857 def: "A protein modification that effectively converts an L-alaninium (protonated L-alanine) residue to an N,N,N-trimethyl-L-alanine." [PubMed:12590383, PubMed:332162, PubMed:3979397, PubMed:6778808, PubMed:7715456, UniMod:37#A] D-alanine (Ser) ; MOD:00858 def: "A protein modification that effectively converts an L-serine residue to D-alanine." [PubMed:7961627, RESID:AA0191#SER] modified residue that can arise from different natural residues ; MOD:00859 def: "A protein modification that can be derived from different natural residues by different chemical processes." [PubMed:18688235] sulfur containing modified residue ; MOD:00860 def: "A protein modification that produces an amino acid residue containing an exogenous sulfur atom." [PubMed:18688235] phosphorus containing modified residue ; MOD:00861 def: "A protein modification that produces an amino acid residue containing a phosphorus atom." [PubMed:18688235] D-alanine ; MOD:00862 def: "A protein modification that effectively converts a source amino acid residue to D-alanine." [ChEBI:29949, PubMed:7287302, PubMed:7961627, RESID:AA0191] D-allo-threonine ; MOD:00863 def: "A protein modification that effectively converts an L-threonine residue to D-allo-threonine." [ChEBI:32826, PubMed:18025465, PubMed:6893271, RESID:AA0199] tris-L-cysteinyl L-histidino diiron disulfide ; MOD:00864 def: "A protein modification that effectively converts three L-cysteine residues, an L-histidine residue and a two-iron two-sulfur cluster to tris-L-cysteinyl L-histidino diiron disulfide." [PubMed:17766439, PubMed:17766440, RESID:AA0438] N-aspartyl-glycosylsphingolipidinositolethanolamine ; MOD:00865 def: "A protein modification that effectively converts an L-aspartic acid residue to N-aspartyl-glycosylsphingolipidinositolethanolamine." [RESID:AA0439] dihydroxylated proline ; MOD:00866 def: "A protein modification that effectively converts an L-proline residue to one of several dihydroxylated proline residues, such as (2S,3R,4R)-3,4-dihydroxyproline or (2S,3R,4S)-3,4-dihydroxyproline." [PubMed:18688235] L-cysteinyl-L-selenocysteine (Cys-Cys) ; MOD:00867 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-cysteine converted to an L-selenocysteine residue to form L-cysteinyl-L-selenocystine." [PubMed:10801974, PubMed:12911312, PubMed:17177418, RESID:AA0358#CYS] natural, non-standard encoded residue ; MOD:00868 def: "A protein modification that inserts or replaces a residue with a natural, non-standard encoded residue, such as N-formyl-L-methionine, L-selenocysteine, or L-pyrrolysine." [PubMed:18688235] L-alanine residue (Asp) ; MOD:00869 def: "A protein modification that effectively converts an L-aspartic acid residue to L-alanine." [PubMed:17138938, RESID:AA0001#ASP] phenyl isocyanate derivatized residue ; MOD:00870 def: "A protein modification produced by formation of an adduct with phenyl isocyanate." [UniMod:411] (2)H5-phenyl isocyanate derivatized residue ; MOD:00871 def: "A protein modification produced by formation of an adduct with (2)H5-phenyl isocyanate." [UniMod:412] L-isoglutamyl monoglutamic acid ; MOD:00872 def: "OBSOLETE because redundant and identical to MOD:01970. Remap to MOD:01970." [PubMed:10747868, PubMed:15525938, PubMed:1680872, RESID:AA0202#var, UniMod:450] is_obsolete: true L-isoglutamyl diglutamic acid ; MOD:00873 def: "A protein modification that effectively converts an L-glutamic acid residue to isoglutamyl glutamyl-glutamic acid, forming an isopeptide bond with a diglutamic acid." [DeltaMass:0, PubMed:10747868, PubMed:1680872, RESID:AA0202#var, UniMod:451] L-isoglutamyl triglutamic acid ; MOD:00874 def: "A protein modification that effectively converts an L-glutamic acid residue to isoglutamyl glutamyl-glutamyl-glutamic acid, forming an isopeptide bond with a triglutamic acid." [DeltaMass:0, PubMed:10747868, PubMed:1680872, RESID:AA0202#var, UniMod:452] L-isoglutamyl tetraglutamic acid ; MOD:00875 def: "A protein modification that effectively converts an L-glutamic acid residue to isoglutamyl glutamyl-glutamyl-glutamyl-glutamic acid, forming an isopeptide bond with a tetraglutamic acid." [PubMed:10747868, PubMed:1680872, RESID:AA0202#var, UniMod:453] hexosaminylated residue ; MOD:00876 def: "A protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with a hexosamine sugar group through a glycosidic bond." [UniMod:454] imidoester crosslink dimethyl pimelimidate singly attached ; MOD:00877 def: "dimethyl pimelimidate modification from UniMod" [UniMod:455, URL:http\://www.piercenet.com/files/0668ss5.pdf] imidoester crosslink dimethyl pimelimidate doubly attached ; MOD:00878 def: "dimethyl pimelimidate modification from UniMod - Mechanism of the reaction of imidoesters with amines" [PubMed:7171546, UniMod:456, URL:http\://dx.doi.org/10.1021/ja00877a017] naphthalene-2,3-dicarboxaldehyde ; MOD:00879 def: "modification from UniMod" [PubMed:2081203, UniMod:457] 6x(13)C labeled 4-sulfophenyl isothiocyanate derivatized residue ; MOD:00880 def: "A protein modification produced by formation of an adduct with 6x(13)C labeled 4-sulfophenyl isothiocyanate." [PubMed:15536630, PubMed:16526082, UniMod:464] N-reductive amination-D ; MOD:00881 def: "OBSOLETE because UniMod entry 465 megerd with 199. Remap to MOD:00552 DiMethyl-CH2D." [PubMed:9252331, UniMod:465] is_obsolete: true S-(2-aminoethyl)cysteine (Ser) ; MOD:00882 def: "A protein modification that effectively converts an L-serine residue to S-(2-aminoethyl)cysteine." [DeltaMass:171, PubMed:12923550, UniMod:472#S] C1-amidated residue ; MOD:00883 def: "A protein modification that effectively replaces a 1-carboxyl group (usually referred to as the alpha-carboxyl) with a carboxamido group." [DeltaMass:0, OMSSA:25, UniMod:2] S-aminoethylcysteine (Cys) ; MOD:00884 def: "A protein modification that effectively converts an L-cysteine residue to S-2-aminoethylcysteine." [PubMed:1175632, PubMed:18688235] ester crosslinked residues ; MOD:00885 def: "A protein modification that crosslinks two residues by formation of an ester bond." [PubMed:18688235] 6'-chloro-L-tryptophan ; MOD:00886 def: "A protein modification that effectively converts an L-tryptophan residue to 6'-chloro-L-tryptophan." [PubMed:9033387, RESID:AA0180, UniMod:936#W] methylated aspartic acid ; MOD:00887 def: "A protein modification that effectively converts an L-aspartic acid residue to a methylated aspartic acid, such as aspartic acid 4-methyl ester." [PubMed:18688235] protonated L-proline (L-prolinium) residue ; MOD:00888 def: "A protein modification that effectively converts an L-proline to an L-prolinium (protonated L-proline)." [PubMed:18688235] N,N-dimethyl-L-proline (from L-prolinium) ; MOD:00889 def: "A protein modification that effectively converts an L-prolinium (charged L-proline) residue to N,N-dimethyl-L-proline." [UniMod:36#P] phosphorylated L-histidine ; MOD:00890 def: "A protein modification that effectively converts an L-histidine residue to a phosphorylated L-histidine, such as pros-phosphohistidine, or tele-phosphohistidine." [OMSSA:192, UniMod:21#H] D-serine ; MOD:00891 def: "A protein modification that effectively converts a source amino acid residue to D-serine." [ChEBI:29998, PubMed:6893271, PubMed:7973665, RESID:AA0195] D-serine (Cys) ; MOD:00892 def: "A protein modification that effectively converts an L-cysteine residue to D-serine." [PubMed:18025465, PubMed:6893271, RESID:AA0195#CYS] residues isobaric at 128.0-128.1 ; MOD:00893 def: "Natural or modified residues with a mass of 128.0-128.1 Da." [PubMed:18688235] residues isobaric at 128.058578 Da ; MOD:00894 def: "Natural or modified resiues with a mass of 128.058578 Da." [PubMed:18688235] FAD modified residue ; MOD:00895 def: "A protein modification that effectively results from forming an adduct with a compound containing a flavin adenine dinucleotide (FAD) group." [PubMed:18688235] FMN modified residue ; MOD:00896 def: "A protein modification that effectively results from forming an adduct with a compound containing a riboflavin phosphate (flavin mononucleotide, FMN) group." [PubMed:18688235] N-acetyl-S-archeol-cysteine ; MOD:00897 def: "A protein modification that effectively converts an L-cysteine residue to N-acetyl-S-archeol-L-cysteine." [RESID:AA0043#var, RESID:AA0223#var] S-(sn-1-2-oleoyl-3-palmitoyl-glycerol)cysteine ; MOD:00898 def: "A protein modification that effectively converts an L-cysteine residue to S-(sn-1-2-oleoyl-3-palmitoyl-glycerol)cysteine." [PubMed:10896212, PubMed:4575979, PubMed:9056182, RESID:AA0107#var, UniMod:377] N-palmitoyl-S-diacylglycerol-L-cysteine ; MOD:00899 def: "A protein modification that effectively converts an L-cysteine residue to N-palmitoyl-S-diacylglycerol-L-cysteine." [RESID:AA0069#var, RESID:AA0107#var] N-palmitoyl-S-(sn-1-2-oleoyl-3-palmitoyl-glycerol)cysteine ; MOD:00900 def: "A protein modification that effectively converts an L-cysteine residue to N-palmitoyl-S-(sn-1-2-oleoyl-3-palmitoyl-glycerol)cysteine." [PubMed:18688235] modified L-alanine residue ; MOD:00901 def: "A protein modification that modifies an L-alanine." [PubMed:18688235] modified L-arginine residue ; MOD:00902 def: "A protein modification that modifies an L-arginine residue." [PubMed:18688235] modified L-asparagine residue ; MOD:00903 def: "A protein modification that modifies an L-asparagine residue." [PubMed:18688235] modified L-aspartic acid residue ; MOD:00904 def: "A protein modification that modifies an L-aspartic acid residue." [PubMed:18688235] modified L-cysteine residue ; MOD:00905 def: "A protein modification that modifies an L-cysteine residue." [PubMed:18688235] modified L-glutamic acid residue ; MOD:00906 def: "A protein modification that modifies an L-glutamic acid residue." [PubMed:18688235] modified L-glutamine residue ; MOD:00907 def: "A protein modification that modifies an L-glutamine residue." [PubMed:18688235] modified glycine residue ; MOD:00908 def: "A protein modification that modifies a glycine residue." [PubMed:18688235] modified L-histidine residue ; MOD:00909 def: "A protein modification that modifies an L-histidine residue." [PubMed:18688235] modified L-isoleucine residue ; MOD:00910 def: "A protein modification that modifies an L-isoleucine residue." [PubMed:18688235] modified L-leucine residue ; MOD:00911 def: "A protein modification that modifies an L-leucine residue." [PubMed:18688235] modified L-lysine residue ; MOD:00912 def: "A protein modification that modifies an L-lysine residue." [PubMed:18688235] modified L-methionine residue ; MOD:00913 def: "A protein modification that modifies an L-methionine residue." [PubMed:18688235] modified L-phenylalanine residue ; MOD:00914 def: "A protein modification that modifies an L-phenylalanine residue." [PubMed:18688235] modified L-proline residue ; MOD:00915 def: "A protein modification that modifies an L-proline residue." [PubMed:18688235] modified L-serine residue ; MOD:00916 def: "A protein modification that modifies an L-serine residue." [PubMed:18688235] modified L-threonine residue ; MOD:00917 def: "A protein modification that modifies an L-threonine residue." [PubMed:18688235] modified L-tryptophan residue ; MOD:00918 def: "A protein modification that modifies an L-tryptophan residue." [PubMed:18688235] modified L-tyrosine residue ; MOD:00919 def: "A protein modification that modifies an L-tyrosine residue." [PubMed:18688235] modified L-valine residue ; MOD:00920 def: "A protein modification that modifies an L-valine residue." [PubMed:18688235] new uncategorized UniMod entries ; MOD:00921 def: "New uncategorized UniMod. OBSOLETE because organizational use is no longer required." [PubMed:18688235] is_obsolete: true Cy3 CyDye DIGE Fluor saturation dye ; MOD:00922 def: "modification from UniMod Chemical derivative" [UniMod:494] Cy5 CyDye DIGE Fluor saturation dye ; MOD:00923 def: "modification from UniMod Chemical derivative" [UniMod:495] N6-(L-threonyl)-L-lysine ; MOD:00924 def: "A protein modification that effectively crosslinks an L-lysine residue and an L-threonine residue by an isopeptide bond to form N6-(L-threonyl)-L-lysine." [PubMed:18063774, RESID:AA0440] heptosylated residue ; MOD:00925 def: "A protein modification that effectively replaces a hydrogen atom of an amino acid residue or of a modifying group with a heptose sugar group through a glycosidic bond." [UniMod:490] Bisphenol A diglycidyl ether derivative ; MOD:00926 def: "Modification from UniMod Non-standard residue. OBSOLETE because not an amino acid modification. From UniMod not an approved entry." [PubMed:11225353, UniMod:493] is_obsolete: true 2x(13)C,4x(2)H labeled dimethylated residue ; MOD:00927 def: "A protein modification that effectively replaces two hydrogen atoms of a residue containing common isotopes with two (13)C,3x(2)H labeled methyl groups to form a 2x(13)C,6x(2)H labeled dimethylated residue." [PubMed:16335955, PubMed:3802193, UniMod:510] [3-(2,5)-dioxopyrrolidin-1-yloxycarbonyl)-propyl]dimethyloctylammonium ; MOD:00928 def: "modification from UniMod Chemical derivative" [PubMed:16771548, UniMod:513] lactose glycated lysine ; MOD:00929 def: "A modification produced in a non-enzymatic reaction between a lactose carbonyl group and an L-lysine to form a Schiff-base or an Amadori ketosamine lysine adduct." [PubMed:9606156, UniMod:512] propyl-NAG tyrosine adduct ; MOD:00930 def: "tyrosine adduct with substrate analog inhibitor 1,2-dideoxy-2'-methyl-alpha-D-glucopyranoso-[2,1-d]-Delta2'-thiazoline." [PubMed:15795231, UniMod:514] Michael addition of t-butyl hydroxylated BHT (BHTOH) to C, H or K ; MOD:00931 def: "modification from UniMod Other - BHTOH is formed upon metabolism of BHT with P450 enzymes. The BHTOH is further metabolized to its quinone methide (electrophile) which reacts with -SH and -NH2 groups" [PubMed:11085420, UniMod:498] IDBEST tag for quantitation ; MOD:00932 def: "modification from UniMod Isotopic label" [PubMed:11821862, UniMod:499] methylglyoxal arginine adduct (+54 amu) ; MOD:00933 def: "modification from UniMod Chemical derivative - 5-hydro-5-methylimidazol-4-one, arginine methylglyoxal arginine adduct (+54 amu)" [UniMod:319#R] Levuglandinyl - arginine hydroxylactam adduct ; MOD:00934 def: "modification from UniMod Post-translational" [UniMod:506] methionine oxidation with neutral loss of 64 Da ; MOD:00935 def: "Oxidation of methionine to methionine sulfoxide with neutral loss of CH3SOH." [PubMed:18688235, PubMed:9004526] Levuglandinyl - hydroxylactam adduct, K and N-term ; MOD:00936 def: "modification from UniMod Post-translational" [UniMod:504] Levuglandinyl - arginine lactam adduct ; MOD:00937 def: "modification from UniMod Post-translational" [UniMod:505] Levuglandinyl - lactam adduct, K and N-term ; MOD:00938 def: "modification from UniMod Post-translational" [PubMed:12590383, UniMod:503] hydrolyzed N-methylmaleimide cysteine adduct ; MOD:00939 def: "modification from UniMod Chemical derivative" [UniMod:500] 3-methyl-2-pyridyl isocyanate derivatized residue ; MOD:00940 def: "A protein modification produced by formation of an adduct with 3-methyl-2-pyridyl isocyanate." [PubMed:11078590, UniMod:501] dehydropyrrolizidine alkaloid (dehydroretronecine) derivatized cysteine ; MOD:00941 def: "modification from UniMod Chemical derivative" [PubMed:12175151, UniMod:488] (4,4,5,5-(2)H4)-L-lysine ; MOD:00942 def: "A protein modification that effectively substitutes four (1)H protium atoms with four (2)H deuterium atoms to produce (4,4,5,5-(2)H4)-L-lysine." [OMSSA:180, UniMod:481] 4-trimethylammoniumbutanoyl derivatized residue ; MOD:00943 def: "modification from UniMod Isotopic label" [PubMed:12643539, UniMod:476] d9-4-trimethylammoniumbutanoyl derivatized residue ; MOD:00944 def: "modification from UniMod Isotopic label" [UniMod:477] fluorescein-5-thiosemicarbazide adduct ; MOD:00945 def: "OBSOLETE because redundant and identical to MOD:00626. Remap to MOD:00626." [PubMed:18688235] is_obsolete: true crosslinked residues with loss of ammonia ; MOD:00946 def: "A protein modification that crosslinks two residues with a covalent bond and the loss of ammonia." [PubMed:18688235] DeltaMass ; MOD:00947 def: "Entries from DeltaMass see http://www.abrf.org/index.cfm/dm.home?AvgMass=all." [PubMed:18688235] 5'-dephospho ; MOD:00948 def: "modification from DeltaMass" [DeltaMass:0] desmosine ; MOD:00949 def: "OBSOLETE because redundant and identical to MOD:01933. Remap to MOD:01933." [DeltaMass:0] decomposed carboxymethylated methionine ; MOD:00950 def: "modification from DeltaMass" [DeltaMass:3] L-gamma-carboxyglutamic acid with neutral loss of carbon dioxide ; MOD:00951 def: "Covalent modification of a peptide or protein L-glutamic acid residue to gamma-carboxyglutamic acid with secondary loss of a neutral carbon dioxide molecular fragment." [DeltaMass:58] (2-aminosuccinimidyl)acetic acid (Asp) ; MOD:00952 def: "A protein modification that crosslinks an aspartic acid and the following glycine residue with the formation of (2-aminosuccinimidyl)acetic acid and the loss of a water molecule." [PubMed:10801322, RESID:AA0441#ASP] O-(L-isoglutamyl)-L-serine (Glu-Ser) ; MOD:00953 def: "A protein modification that effectively crosslinks an L-glutamic acid residue and an L-serine residue by an ester bond and releasing water to form O-(L-isoglutamyl)-L-serine." [DeltaMass:0, PubMed:19035375, RESID:AA0597#ESX] crosslinked residues with loss of water ; MOD:00954 def: "A protein modification that crosslinks two residues with a covalent bond and the loss of water." [PubMed:18688235] alaninohistidine (serine crosslinked to tele or pros nitrogen of histidine) ; MOD:00955 def: "A protein modification that effectively crosslinks an L-serine residue and an L-histidine residue to release water and form tele- or pros-(2-amino-2-carboxyethyl)histidine." [DeltaMass:0] misincorporation of norleucine for methionine ; MOD:00956 def: "modification from DeltaMass" [DeltaMass:10] modified residue with neutral loss of carbon dioxide ; MOD:00957 def: "Covalent modification of, or a change resulting in an alteration of the measured molecular mass of, a peptide or protein amino acid residue with a secondary loss of a neutral carbon dioxide molecular fragment." [PubMed:18688235] crosslink between Arg and His sidechains ; MOD:00958 def: "modification from DeltaMass" [DeltaMass:0] 3,3',5,5'-TerTyr (Crosslink) ; MOD:00959 def: "modification from DeltaMass" [DeltaMass:0] decarboxylated residue ; MOD:00960 def: "A protein modification that effectively replaces a carboxylic acid group with a hydrogen atom." [PubMed:18688235] reduction of disulfide crosslink in cystine to two cysteines ; MOD:00961 def: "A protein modification that effectively reduces the disulfide bond of cystine to form two cysteine residues." [DeltaMass:333] 2',3'-dihydrotryptophan ; MOD:00962 def: "A protein modification that by reducing the indole ring system of tryptophan to indoline effectively converts an L-tryptophan residue to 2',3'-dihydrotryptophan." [DeltaMass:343, URL:http\://dx.doi.org/10.1016/S0040-4039(00)99113-5] Oxidation of Trp to kynurenine ; MOD:00963 def: "Modification from DeltaMass. OBSOLETE because redundant and identical to MOD:00462. Remap to MOD:00462." [DeltaMass:357] is_obsolete: true lysine epsilon amino to imine + 12 amu ; MOD:00964 def: "modification from DeltaMass" [DeltaMass:34] 4-thiazolidinecarboxylic acid ; MOD:00965 def: "A protein modification that effectively converts an N-terminal L-cysteine residue by a formadehyde adduct to 4-thiazolidinecarboxylic acid." [DeltaMass:342] 1,2,3,4-tetrahydro-beta-carboline-3-carboxylic acid ; MOD:00966 def: "A protein modification that effectively converts an N-terminal L-tryptophan residue by a formadehyde adduct to 1,2,3,4-tetrahydro-beta-carboline-3-carboxylic acid." [DeltaMass:339] syndesine ; MOD:00967 def: "A protein modification that effectively cross-links two L-lysine residues to form syndesine, hydroxylysinohydroxynorleucine." [DeltaMass:35, PubMed:75151974] CM-Cys vs PAM-Cys ; MOD:00968 def: "modification from DeltaMass" [DeltaMass:347] CAM-Cys vs PAM-Cys ; MOD:00969 def: "modification from DeltaMass" [DeltaMass:346] delta-hydroxy-allysine (Lys) ; MOD:00970 def: "modification from DeltaMass" [DeltaMass:37] Oxohistidine (from histidine) ; MOD:00971 def: "modification from DeltaMass" [DeltaMass:38] monobrominated L-phenylalanine ; MOD:00972 def: "A protein modification that effectively converts an L-phenylalanine residue to a monobrominated L-phenylalanine, such as L-2'-bromophenylalanine." [UniMod:340#F] Oxidation of proline (to glutamic acid) ; MOD:00973 def: "modification from DeltaMass" [DeltaMass:355] (35)Cl labeled 3'-chlorotyrosine ; MOD:00974 def: "modification from DeltaMass" [DeltaMass:0] (37)Cl labeled 3'-chlorotyrosine ; MOD:00975 def: "modification from DeltaMass" [DeltaMass:0] potassium salt ; MOD:00976 def: "modification from DeltaMass - OBSOLETE because redundant and identical to MOD:01072. Remap to MOD:01072." [DeltaMass:0] is_obsolete: true disodium salt ; MOD:00977 def: "modification from DeltaMass" [DeltaMass:0] piperidine adduct to C-terminal Cys ; MOD:00978 def: "modification from DeltaMass" [DeltaMass:345] t-butyl ester (OtBu) and t-butyl (tBu) ; MOD:00979 def: "modification from DeltaMass" [DeltaMass:0] Carboxamidomethyl (on Cysteine) ; MOD:00980 def: "modification from DeltaMass - OBSOLETE because redundant, the difference component of MOD:01060. Remap to MOD:01060." [DeltaMass:337] is_obsolete: true sodium and potassium salt ; MOD:00981 def: "modification from DeltaMass" [DeltaMass:0] L-selenocysteine (Ser) ; MOD:00982 def: "A protein modification that effectively converts an L-serine residue to L-selenocysteine (not known as a natural post-translational modification process)." [DeltaMass:0] Asp transamidation with piperidine ; MOD:00983 def: "modification from DeltaMass" [DeltaMass:67] (35)Cl labeled 3',5'-dichlorotyrosine ; MOD:00984 def: "modification from DeltaMass" [DeltaMass:0] halogenated tyrosine ; MOD:00985 def: "A protein modification that effectively substitutes a hydrogen atom of an L-tyrosine residue with a halogen atom." [PubMed:18688235] (35)Cl and (37)Cl labeled 3',5'-dichlorotyrosine ; MOD:00986 def: "modification from DeltaMass" [DeltaMass:0] chlorinated tyrosine ; MOD:00987 def: "A protein modification that effectively substitutes a hydrogen atom of an L-tyrosine residue with a chlorine atom." [PubMed:18688235] brominated tyrosine ; MOD:00988 def: "A protein modification that effectively substitutes a hydrogen atom of an L-tyrosine residue with a bromine atom." [PubMed:18688235] acetamidomethyl (Acm) ; MOD:00989 def: "OBSOLETE because redundant, the difference component of MOD:01079. Remap to MOD:01079." [DeltaMass:0] is_obsolete: true (37)Cl labeled 3',5'-dichlorotyrosine ; MOD:00990 def: "modification from DeltaMass" [DeltaMass:0] S-(sn-1-glyceryl)-L-cysteine ; MOD:00991 def: "modification from DeltaMass" [DeltaMass:0] glutamate 5-glycerol ester ; MOD:00992 def: "modification from DeltaMass" [DeltaMass:78, PubMed:18767873] phenyl ester ; MOD:00993 def: "modification from DeltaMass" [DeltaMass:0] (79)Br labeled 3'-bromotyrosine ; MOD:00994 def: "modification from DeltaMass" [DeltaMass:0] (81)Br labeled 2'-bromophenylalanine ; MOD:00995 def: "A protein modification that effectively converts an L-phenylalanine residue to (81)Br-L-2'-bromophenylalanine." [DeltaMass:0] (81)Br labeled 3'-bromotyrosine ; MOD:00996 def: "modification from DeltaMass" [DeltaMass:0] cyclohexyl ester ; MOD:00997 def: "modification from DeltaMass" [DeltaMass:0] iodinated tyrosine ; MOD:00998 def: "A protein modification that effectively substitutes a hydrogen atom of an L-tyrosine residue with an iodine atom." [PubMed:18688235] homoseryl lactone ; MOD:00999 def: "OBSOLETE because redundant and identical to MOD:00404. Remap to MOD:00404." [DeltaMass:90] is_obsolete: true monobrominated tyrosine ; MOD:01000 def: "A protein modification that effectively substitutes one hydrogen atom of an L-tyrosine residue with one bromine atom." [PubMed:18688235] 2-aminoisobutyric acid residue (Aib) ; MOD:01001 def: "A protein modification that inserts or replaces a residue with a 2-aminoisobutyric acid." [DeltaMass:0] gamma-aminobutyryl ; MOD:01002 def: "modification from DeltaMass" [DeltaMass:92] t-butyloxymethyl (Bum) ; MOD:01003 def: "modification from DeltaMass" [DeltaMass:0] diaminopropionyl ; MOD:01004 def: "modification from DeltaMass" [DeltaMass:95] t-butylsulfenyl ; MOD:01005 def: "modification from DeltaMass" [DeltaMass:0] dibrominated tyrosine ; MOD:01006 def: "A protein modification that effectively substitutes two hydrogen atoms of an L-tyrosine residue with two bromine atoms." [UniMod:534] anisyl modified residue ; MOD:01007 def: "A protein modification that effectively substitutes an anisyl (methoxyphenyl) group for a hydroxyl group, typically at the 4 or para position." [DeltaMass:0] benzyl (Bzl) and benzyl ester (OBzl) modified residue ; MOD:01008 def: "A protein modification that effectively substitutes a benzyl (phenylmethyl) group for a hydrogen atom." [DeltaMass:0] dehydrogenated proline ; MOD:01009 def: "modification from DeltaMass" [DeltaMass:0] trifluoroacetylated residue ; MOD:01010 def: "A protein modification that effectively substitutes a trifluoroacetyl group for a hydrogen atom." [DeltaMass:0] N-hydroxysuccinimide (ONSu, OSu) ; MOD:01011 def: "modification from DeltaMass" [DeltaMass:0] oxidation of disulfide crosslink in cystine to two cysteic acids ; MOD:01012 def: "A protein modification that effectively oxidizes the disulfide bond of a cystine crosslink to form two cysteic acid residues." [DeltaMass:335] tetramethylguanidinium termination by-product on amine ; MOD:01013 def: "modification from DeltaMass" [DeltaMass:0] phosphate/sulphate adduct of proteins ; MOD:01014 def: "modification from DeltaMass" [DeltaMass:358] isovaline residue (Iva) ; MOD:01015 def: "A protein modification that inserts or replaces a residue with an isovaline." [DeltaMass:110] t-butyloxycarbonyl ; MOD:01016 def: "modification from DeltaMass" [DeltaMass:0] homoseryl (-Hse-) ; MOD:01017 def: "OBSOLETE because redundant and identical to MOD:00403. Remap to MOD:00403." [DeltaMass:113] is_obsolete: true 4-methylbenzyl ; MOD:01018 def: "modification from DeltaMass" [DeltaMass:0] hydroxymethylphenyl linker ; MOD:01019 def: "modification from DeltaMass" [DeltaMass:0] thioanisyl ; MOD:01020 def: "modification from DeltaMass" [DeltaMass:0] thiocresyl ; MOD:01021 def: "modification from DeltaMass" [DeltaMass:0] 2-piperidinecarboxylic acid ; MOD:01022 def: "A protein modification that effectively converts an L-lysine residue to 2-piperidinecarboxylic acid." [DeltaMass:0] 3',5'-dibromo-L-tyrosine ; MOD:01023 def: "A protein modification that effectively converts an L-tyrosine residue to 3',5'-dibromo-L-tyrosine." [DeltaMass:156] monohydroxylated proline ; MOD:01024 def: "A protein modification that effectively converts an L-proline residue to one of several monohydroxylated proline residues, including 3-hydroxy-L-proline and 4-hydroxy-L-proline." [DeltaMass:0, OMSSA:62, UniMod:35#P] 3'-bromo-L-tyrosine ; MOD:01025 def: "A protein modification that effectively converts an L-tyrosine residue to 3'-bromo-L-tyrosine." [PubMed:18688235] norleucine residue (Nle) ; MOD:01026 def: "A protein modification that inserts or replaces a residue with a norleucine." [DeltaMass:126] t-amyloxycarbonyl ; MOD:01027 def: "modification from DeltaMass" [DeltaMass:0] monochlorinated L-tyrosine ; MOD:01028 def: "A protein modification that effectively substitutes one hydrogen atom of an L-tyrosine residue with one chlorine atom." [PubMed:18688235] succinylated residue ; MOD:01029 def: "A protein modification that effectively replaces a hydrogen atom with a succinyl group linked through a carbonyl carbon." [DeltaMass:0, UniMod:64] hydroxybenzotriazole ester ; MOD:01030 def: "modification from DeltaMass" [DeltaMass:0] dimethylbenzyl ; MOD:01031 def: "modification from DeltaMass" [DeltaMass:0] benzyloxymethyl modified residue ; MOD:01032 def: "A protein modification that effectively substitutes a benzyloxymethyl group for a hydrogen atom." [DeltaMass:0] p-methoxybenzyl modified residue ; MOD:01033 def: "A protein modification that effectively substitutes a p-methoxybenzyl group for a hydrogen atom." [DeltaMass:0] 4-nitrophenyl modified residue ; MOD:01034 def: "A protein modification that effectively substitutes a 4-nitrophenyl group for a hydrogen atom." [DeltaMass:0] chlorobenzyl ; MOD:01035 def: "modification from DeltaMass" [DeltaMass:0] O-methyl aspartyl ; MOD:01036 def: "OBSOLETE because redundant and identical to MOD:01181. Remap to MOD:01181." [PubMed:18688235] is_obsolete: true dichlorinated tyrosine ; MOD:01037 def: "A protein modification that effectively substitutes two hydrogen atoms of an L-tyrosine residue with two chlorine atoms." [PubMed:18688235] norleucine (Nle) ; MOD:01038 def: "OBSOLETE because this represents a free amino acid and the corresponding residue is MOD:01026." [DeltaMass:0] is_obsolete: true hydroxy aspartyl ; MOD:01039 def: "OBSOLETE because redundant and identical to MOD:00036. Remap to MOD:00036." [PubMed:18688235] is_obsolete: true penicillamine residue ; MOD:01040 def: "A protein modification that inserts or replaces a residue with a penicillamine." [DeltaMass:154] benzyloxycarbonyl modified residue ; MOD:01041 def: "A protein modification that effectively substitutes a benzyloxycarbonyl group for a hydrogen atom." [DeltaMass:0] adamantyl modified residue ; MOD:01042 def: "A protein modification that effectively substitutes a adamantyl group for a hydrogen atom." [DeltaMass:0] p-nitrobenzyl ester modified residue ; MOD:01043 def: "A protein modification that effectively substitutes a p-nitrobenzyl group for the hydrogen atom of a carboxyl group." [DeltaMass:0] N-methyl glutamyl ; MOD:01044 def: "OBSOLETE because redundant and identical to MOD:00080. Remap to MOD:00080." [DeltaMass:166] is_obsolete: true 3',5'-dichloro-L-tyrosine ; MOD:01045 def: "A protein modification that effectively converts an L-tyrosine residue to 3',5'-dichloro-L-tyrosine." [PubMed:18688235] 3'-chloro-L-tyrosine ; MOD:01046 def: "A protein modification that effectively converts an L-tyrosine residue to 3'-chloro-L-tyrosine." [PubMed:18688235] monohydroxylated lysine ; MOD:01047 def: "A protein modification that effectively converts an L-lysine residue to a monohydroxylated lysine." [DeltaMass:168, OMSSA:60, UniMod:35#K] 2-pyrrolidone-5-carboxylic acid ; MOD:01048 def: "A protein modification that effectively converts a source amino acid residue to 2-pyrrolidone-5-carboxylic acid." [PubMed:18688235] halogenated histidine ; MOD:01049 def: "A protein modification that effectively substitutes a hydrogen atom of an L-histidine residue with a halogen atom." [PubMed:18688235] pyridyl alanyl ; MOD:01050 def: "modification from DeltaMass" [DeltaMass:180] 2-nitrobenzoyl ; MOD:01051 def: "modification from DeltaMass" [DeltaMass:0] dimethoxybenzyl Trp ; MOD:01052 def: "modification from DeltaMass" [DeltaMass:0] 2-nitrophenylsulphenyl ; MOD:01053 def: "modification from DeltaMass" [DeltaMass:0] 4-toluenesulfonyl ; MOD:01054 def: "modification from DeltaMass" [DeltaMass:0] 3-nitro-2-pyridinesulfenyl ; MOD:01055 def: "modification from DeltaMass" [DeltaMass:0] (79)Br labeled 3',5'-dibromotyrosine ; MOD:01056 def: "modification from DeltaMass" [DeltaMass:0] (79)Br and (81)Br labeled 3',5'-dibromotyrosine ; MOD:01057 def: "modification from DeltaMass" [DeltaMass:0] dichlorobenzyl ; MOD:01058 def: "modification from DeltaMass" [DeltaMass:0] (81)Br labeled 3',5'-dibromotyrosine ; MOD:01059 def: "modification from DeltaMass" [DeltaMass:0] S-carboxamidomethyl-L-cysteine ; MOD:01060 def: "A protein modification that effectively converts an L-cysteine residue to S-carboxamidomethyl-L-cysteine." [DeltaMass:196, DeltaMass:337, OMSSA:3, PubMed:10504701, PubMed:11510821, PubMed:12422359, PubMed:18306178, UniMod:4#C] S-carboxymethyl-L-cysteine ; MOD:01061 def: "A protein modification that effectively converts an L-cysteine residue to S-carboxymethyl-L-cysteine." [DeltaMass:0, DeltaMass:197, OMSSA:2, UniMod:6#C] carboxymethyl cysteinyl ; MOD:01062 def: "OBSOLETE because duplicate and redundant with MOD:01061. Remap to MOD:01061" [DeltaMass:197] is_obsolete: true monomethylated phenylalanine ; MOD:01063 def: "A protein modification that effectively converts an L-phenylalanine residue to a monomethylated phenylalanine." [DeltaMass:198] inositol ; MOD:01064 def: "modification from DeltaMass" [DeltaMass:0] hexose glycated N-terminal ; MOD:01065 def: "A modification produced in a non-enzymatic reaction between a carbohydrate carbonyl group (C1 of aldohexose or C2 of fructose) and a protein N-terminal amino group to form a Schiff-base or an Amadori ketosamine (or aminoketose) residue adduct." [DeltaMass:0, UniMod:41#N-term] halogenated phenylalanine ; MOD:01066 def: "A protein modification that effectively substitutes a hydrogen atom of an L-phenylalanine residue with a halogen atom." [PubMed:18688235] linker attached to peptide in Fmoc peptide synthesis ; MOD:01067 def: "modification from DeltaMass" [DeltaMass:341] halogenated tryptophan ; MOD:01068 def: "A protein modification that effectively substitutes a hydrogen atom of an L-tryptophan residue with a halogen atom." [PubMed:18688235] 2,4-dinitrophenyl modified residue ; MOD:01069 def: "A protein modification that effectively substitutes a 2,4-dinitrophenyl group for a hydrogen atom." [DeltaMass:0] pentafluorophenyl modified residue ; MOD:01070 def: "A protein modification that effectively substitutes a pentafluorophenyl group for a hydrogen atom." [DeltaMass:0] diphenylmethyl modified residue ; MOD:01071 def: "A protein modification that effectively substitutes a diphenylmethyl group for a hydrogen atom." [DeltaMass:0] monopotassium salt ; MOD:01072 def: "A protein modification that effectively substitutes one potassium atom for one hydrogen atom." [DeltaMass:0] 2-chlorobenzyloxycarbonyl modified residue ; MOD:01073 def: "A protein modification that effectively substitutes a 2-chlorobenzyloxycarbonyl group for a hydrogen atom." [DeltaMass:0] napthylacetyl modified residue ; MOD:01074 def: "A protein modification that effectively substitutes a napthylacetyl group for a hydrogen atom." [DeltaMass:0] mercury containing modified residue ; MOD:01075 def: "A protein modification that effectively substitutes a mercury atom or a cluster containing mercury for hydrogen atoms, or that coordinates a mercury ion." [PubMed:18688235] N-methyl arginyl ; MOD:01076 def: "modification from DeltaMass - OBSOLETE because redundant and identical to MOD:00414. Remap to MOD:00414." [DeltaMass:215] is_obsolete: true ethanedithiol/TFA cyclic adduct ; MOD:01077 def: "modification from DeltaMass" [DeltaMass:216] S-(2-aminoethyl)-3-methylcysteine (Thr) ; MOD:01078 def: "A protein modification that effectively converts an L-threonine residue to S-(2-aminoethyl)-3-methylcysteine." [PubMed:12923550, UniMod:472#T] S-(acetylamino)methyl-L-cysteine ; MOD:01079 def: "A protein modification that effectively converts an L-cysteine residue to S-[(acetylamino)methyl]-L-cysteine." [DeltaMass:218, PubMed:8572278] acrylamidyl cysteinyl ; MOD:01080 def: "modification from DeltaMass" [DeltaMass:219] delta-glycosyloxy- (of lysine) or beta-glycosyloxy- (of phenylalanine or tyrosine) ; MOD:01081 def: "modification from DeltaMass" [DeltaMass:0] 4-glycosyloxy- (hexosyl, C6) (of proline) ; MOD:01082 def: "modification from DeltaMass" [DeltaMass:0] O-benzyl-L-serine ; MOD:01083 def: "A protein modification that effectively converts an L-serine residue to O-benzyl-L-serine." [DeltaMass:0] iodoacetic acid derivatized amino-terminal residue ; MOD:01084 def: "A protein modification that by reaction of iodoacetic acid effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a carboxymethyl group." [UniMod:6#N-term] alpha-N-gluconoylation (His Tagged proteins) ; MOD:01085 def: "modification from DeltaMass" [DeltaMass:226] p-nitrobenzyloxycarbonyl ; MOD:01086 def: "modification from DeltaMass" [DeltaMass:0] 2,4,5-trichlorophenyl modified residue ; MOD:01087 def: "A protein modification that effectively substitutes a 2,4,5-trichlorophenyl group for a hydrogen atom." [DeltaMass:0] 2,4,6-trimethyloxybenzyl modified residue ; MOD:01088 def: "A protein modification that effectively substitutes a 2,4,6-trimethyloxybenzyl group for a hydrogen atom." [DeltaMass:0] xanthyl ; MOD:01089 def: "modification from DeltaMass" [DeltaMass:0] iodoacetamide derivatized amino-terminal residue ; MOD:01090 def: "A protein modification that by reaction of iodoacetamide effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a carboxamidomethyl group." [PubMed:11327326, PubMed:11510821, PubMed:12422359, UniMod:4#N-term] monochlorinated L-phenylalanine ; MOD:01091 def: "A protein modification that effectively substitutes one hydrogen atom of an L-phenylalanine residue with one chlorine atom." [DeltaMass:233] mesitylene-2-sulfonyl ; MOD:01092 def: "modification from DeltaMass" [DeltaMass:0] isopropyl lysyl ; MOD:01093 def: "modification from DeltaMass" [DeltaMass:236] N6-carboxymethyl-L-lysine ; MOD:01094 def: "A protein modification that effectively converts an L-lysine residue to N6-carboxymethyl-L-lysine." [DeltaMass:237, UniMod:6#K] Matrix alpha cyano MH+ ; MOD:01095 def: "Modification from DeltaMass. OBSOLETE because not an amino acid modification." [DeltaMass:240] is_obsolete: true O-benzyl-L-threonine ; MOD:01096 def: "A protein modification that effectively converts an L-threonine residue to O-benzyl-L-threonine." [DeltaMass:0] S-benzyl-L-cysteine ; MOD:01097 def: "A protein modification that effectively converts an L-cysteine residue to S-benzyl-L-cysteine." [DeltaMass:242] naphthylalanine residue ; MOD:01098 def: "A protein modification that inserts or replaces a residue with a naphthylalanine." [DeltaMass:243] succinyl beta-aspartyl anhydride ; MOD:01099 def: "A protein modification that effectively converts an L-aspartic acid residue to succinyl beta-aspartyl anhydride." [DeltaMass:244] HMP (hydroxymethylphenyl)/TFA adduct ; MOD:01100 def: "modification from DeltaMass" [DeltaMass:0] S-Farnesyl- ; MOD:01101 def: "OBSOLETE because erroneous and apparently redundant to MOD:00111. Remap to MOD:00111." [DeltaMass:0] is_obsolete: true myristoylation-4H (two double bonds) ; MOD:01102 def: "OBSOLETE because redundant and identical to MOD:00504. Remap to MOD:00504." [DeltaMass:348] is_obsolete: true myristoleylation (one double bond) ; MOD:01103 def: "OBSOLETE because redundant and identical to MOD:00503. Remap to MOD:00503." [DeltaMass:0] is_obsolete: true 4-methoxy-2,3,6-trimethylbenzenesulfonyl ; MOD:01104 def: "modification from DeltaMass" [DeltaMass:0] 2-bromobenzyloxycarbonyl ; MOD:01105 def: "modification from DeltaMass" [DeltaMass:0] N-formyl-L-tryptophan ; MOD:01106 def: "A protein modification that effectively converts an L-tryptophan residue to N-formyl-L-tryptophan." [DeltaMass:0] O5-benzyl-L-glutamate ; MOD:01107 def: "A protein modification that effectively converts an L-glutamic acid residue to O5-benzyl-L-glutamate." [DeltaMass:258] 2-amino-5-(4-methoxyphenyl)-5-oxopentanoic acid (Glu) ; MOD:01108 def: "A protein modification that effectively converts an L-glutamic acid residue to 2-amino-5-(4-methoxyphenyl)-5-oxopentanoic acid, glutamtic acid anisole adduct." [DeltaMass:259] 9-fluorenylmethyloxycarbonyl (Fmoc) ; MOD:01109 def: "modification from DeltaMass" [DeltaMass:0] isoprenylated cysteine ; MOD:01110 def: "A protein modification that effectively replaces a hydrogen atom of an L-cysteine residue with a group derived from an isoprene polymer, such as a geranyl (C10), farnesyl (C15) or geranylgeranyl (C20)." [PubMed:18688235] dimethoxybenzhydryl modified residue ; MOD:01111 def: "A protein modification that effectively substitutes a dimethoxybenzhydryl group for a hydrogen atom." [DeltaMass:0] nicotinoyl lysine ; MOD:01112 def: "modification from DeltaMass" [DeltaMass:266] 2-(p-biphenyl)isopropyl-oxycarbonyl ; MOD:01113 def: "modification from DeltaMass" [DeltaMass:0] triphenylmethyl ; MOD:01114 def: "modification from DeltaMass" [DeltaMass:270] isoprenylated tryptophan ; MOD:01115 def: "A protein modification that effectively replaces a hydrogen atom of an L-tryptophan residue with a group derived from an isoprene polymer, such as a geranyl (C10), farnesyl (C15) or geranylgeranyl (C20)." [PubMed:18688235] S-farnesyl-L-cysteine methyl ester ; MOD:01116 def: "A protein modification that effectively converts an L-cysteine residue to S-farnesyl-L-cysteine methyl ester." [PubMed:15609361, RESID:AA0102#var, RESID:AA0105#var] pentamethyldihydrobenzofuransulfonyl ; MOD:01117 def: "modification from DeltaMass" [DeltaMass:0] alpha-N-6-phosphogluconoylation (His Tagged proteins) ; MOD:01118 def: "modification from DeltaMass" [DeltaMass:275] S-geranylgeranyl-L-cysteine methyl ester ; MOD:01119 def: "A protein modification that effectively converts an L-cysteine residue to S-geranylgeranyl-L-cysteine methyl ester." [PubMed:1483450, PubMed:15609361, RESID:AA0104#var, RESID:AA0105#var] 2,2,5,7,8-pentamethylchroman-6-sulfonyl chloride derivatized residue ; MOD:01120 def: "A protein modification that is produced by formation of an adduct with 2,2,5,7,8-pentamethylchroman-6-sulfonyl chloride, Pmc chloride." [DeltaMass:0] monomethoxytrityl ; MOD:01121 def: "modification from DeltaMass" [DeltaMass:280] 5'phos dCytidinyl ; MOD:01122 def: "modification from DeltaMass" [DeltaMass:0] monoiodated tyrosine ; MOD:01123 def: "OBSOLETE because redundant and identical to MOD:01123. Remap to MOD:01123." [DeltaMass:0] is_obsolete: true aldohexosyl lysyl ; MOD:01124 def: "modification from DeltaMass" [DeltaMass:285] 5'phos dThymidinyl ; MOD:01125 def: "modification from DeltaMass" [DeltaMass:0] 5'phos Cytidinyl ; MOD:01126 def: "modification from DeltaMass" [DeltaMass:0] 5'phos Uridinyl ; MOD:01127 def: "OBSOLETE because redundant and identical to MOD:01166. Remap to MOD:01166." [DeltaMass:292] is_obsolete: true N-glycolneuraminic acid ; MOD:01128 def: "modification from DeltaMass" [DeltaMass:0] 5'phos dAdenosyl ; MOD:01129 def: "modification from DeltaMass" [DeltaMass:295] SucPhencarb Lysyl ; MOD:01130 def: "modification from DeltaMass" [DeltaMass:297] 5'phos dGuanosyl ; MOD:01131 def: "modification from DeltaMass" [DeltaMass:0] 5'phos Adenosinyl ; MOD:01132 def: "OBSOLETE because redundant and identical to MOD:01165. Remap to MOD:01165." [DeltaMass:0] is_obsolete: true S-12-hydroxyfarnesyl-L-cysteine methyl ester ; MOD:01133 def: "A protein modification that effectively converts an L-cysteine residue to S-12-hydroxyfarnesyl-L-cysteine methyl ester." [PubMed:17790543, RESID:AA0103#var, RESID:AA0105#var] fluorescein labelling of peptide N-terminal using NHS ester ; MOD:01134 def: "modification from DeltaMass" [DeltaMass:306] Hex-HexNAc ; MOD:01135 def: "modification from DeltaMass" [DeltaMass:0] dioctyl phthalate ; MOD:01136 def: "modification from DeltaMass" [DeltaMass:309] N6-(2,2,5,7,8-pentamethylchroman-6-sulfonyl)-L-lysine ; MOD:01137 def: "A protein modification that is produced by reaction of a lysine residue with 2,2,5,7,8-pentamethylchroman-6-sulfonyl chloride, Pmc chloride, to form N6-(2,2,5,7,8-pentamethylchroman-6-sulfonyl)-L-lysine." [DeltaMass:310] Aedans Cystenyl ; MOD:01138 def: "modification from DeltaMass" [DeltaMass:311] dioctyl phthalate sodium adduct ; MOD:01139 def: "modification from DeltaMass" [DeltaMass:312] diiodinated tyrosine ; MOD:01140 def: "A protein modification that effectively substitutes two hydrogen atoms of an L-tyrosine residue with two iodine atoms." [DeltaMass:0, OMSSA:35, PubMed:15627961, UniMod:130#Y] omega-N-(2,2,5,7,8-pentamethylchroman-6-sulfonyl)-L-arginine ; MOD:01141 def: "A protein modification that is produced by reaction with 2,2,5,7,8-pentamethylchroman-6-sulfonyl chloride, Pmc chloride, to form omega-N-(2,2,5,7,8-pentamethylchroman-6-sulfonyl)-L-arginine." [DeltaMass:314] S-15,16-dihydrobiliverdin-L-cysteine ; MOD:01142 def: "A protein modification that effectively results from forming an adduct between a cysteine residue and the tetrapyrrole compound 15,16-dihydrobiliverdin." [PubMed:10430868, PubMed:15504407, PubMed:1559975, PubMed:3208761, RESID:AA0428] 15,16-dihydrobiliverdin-bis-L-cysteine ; MOD:01143 def: "A protein modification that effectively results from forming an adduct between two cysteine residues and the tetrapyrrole compound 15,16-dihydrobiliverdin." [PubMed:1559975, PubMed:2222853, PubMed:3208761, PubMed:8420941, RESID:AA0429] S-(sn-1-2,3-dipalmitoylglycerol)-L-cysteine ; MOD:01144 def: "A protein modification that effectively converts an L-cysteine residue to S-(sn-1-2,3-dipalmitoyl-glycerol)cysteine." [DeltaMass:0, PubMed:10896212, PubMed:4575979, PubMed:9056182, RESID:AA0107#var] N-tau-(ADP-ribosyl)diphthamide ; MOD:01145 def: "A protein modification that effectively converts an L-histidine residue to N-tau-(ADP-ribosyl)diphthamide." [DeltaMass:0] S-(6-FAD)-L-cysteine ; MOD:01146 def: "A protein modification that effectively converts an L-cysteine residue to S-(6-FAD)-L-cystine." [DeltaMass:0] (Hex)3-HexNAc-(dHex)HexNAc ; MOD:01147 def: "modification from DeltaMass" [DeltaMass:0] ubiquitinylated lysine ; MOD:01148 def: "A protein modification that effectively crosslinks the N6-amino of a peptidyl lysine with the carboxyl-terminal glycine of a ubiquitin." [PubMed:11125103, PubMed:18688235] sumoylated lysine ; MOD:01149 def: "A protein modification that effectively crosslinks the N6-amino of a peptidyl lysine with the carboxyl-terminal glycine of a sumo (Small Ubiquitin-related MOdifier) protein." [PubMed:12612601, PubMed:18688235] neddylated lysine ; MOD:01150 def: "A protein modification that effectively crosslinks the N6-amino of a peptidyl lysine with the carboxyl-terminal glycine of a nedd8 protein." [PubMed:11125103, PubMed:12612601, PubMed:18688235] phosphorylated residue with neutral loss of phosphate ; MOD:01151 def: "Covalent modification of, or a change resulting in an alteration of the measured molecular mass of, a peptide or protein amino acid phosphorylated residue with a secondary loss of a neutral trihydrogen phosphate molecular fragment." [PubMed:18688235] carboxylated residue ; MOD:01152 def: "A protein modification that effectively replaces a hydrogen atom with a carboxylic acid group." [UniMod:299] methylthiolated residue ; MOD:01153 def: "A protein modification that effectively replaces a hydrogen atom with an methylsulfanyl group (thiomethyl group)." [UniMod:39] pyruvic acid ; MOD:01154 def: "A protein modification that effectively converts a source amino acid to pyruvic acid." [PubMed:10085076, PubMed:3042771, PubMed:8464063, RESID:AA0127] lipoconjugated residue ; MOD:01155 def: "A protein modification that effectively results from forming an adduct with a compound containing a lipid-like group either through acylation, alkylation, or amidation." [PubMed:18688235] protein modification categorized by chemical process ; MOD:01156 def: "Modified amino acid residue derived from a natural amino acid by a real or hypothetical chemical process." [PubMed:18688235] protein modification categorized by amino acid modified ; MOD:01157 def: "A protein modification considered either as modified amino acid residues derived from natural amino acids, as a replacement by another natural amino acid, or as a replacement by an unnatural amino acid." [PubMed:18688235] modified L-selenocysteine residue ; MOD:01158 def: "A protein modification that modifies an L-selenocysteine residue." [PubMed:18688235] peptidoglycanated residue ; MOD:01159 def: "A protein modification that effectively attaches a residue to murein peptidoglycan by either a pentaglycine linker peptide or a peptide-like L-alanyl-D-glutamyl-2,6-diaminopimelic acid linkage." [PubMed:18688235] deaminated residue ; MOD:01160 def: "A protein modification that effectively results in the loss of an ammonia, usually by a process of vicinal dehydration, rearrangement, and rehydration with release of ammonia, resulting in a loss of nitrogen with no gain of oxygen." [UniMod:385] deoxygenated residue ; MOD:01161 def: "A protein modification that effectively removes oxygen atoms from a residue without the removal of hydrogen atoms." [PubMed:14235557, UniMod:447] fucosylated biantennary ; MOD:01162 def: "modification from UniMod N-linked glycosylation" [UniMod:308] guanylated residue ; MOD:01163 def: "A protein modification that effectively crosslinks an amino acid residue and 5'-phosphoguanosine through either a phosphodiester or a phosphoramide bond." [DeltaMass:304, UniMod:413] riboflavin-phosphoryl ; MOD:01164 def: "A protein modification that effectively results from forming an adduct with a compound containing a riboflavin phosphate (flavin mononucleotide, FMN) group through a phosphodiester bond." [UniMod:442] adenylated residue ; MOD:01165 def: "A protein modification that effectively crosslinks an amino acid residue and 5'-phosphoadenosine through either a phosphodiester or a phosphoramide bond." [DeltaMass:0, UniMod:405] uridylated residue ; MOD:01166 def: "A protein modification that effectively crosslinks an amino acid residue and 5'-phosphouridine through either a phosphodiester or a phosphoramide bond." [DeltaMass:292, UniMod:417] molybdopterin guanine dinucleotide ; MOD:01167 def: "modification from UniMod" [UniMod:424] dehydroalanine ; MOD:01168 def: "A protein modification that effectively converts a source amino acid residue to dehydroalanine." [PubMed:10220322, PubMed:1547888, PubMed:1815586, PubMed:2914619, PubMed:6838602, PubMed:7947813, PubMed:8239649, RESID:AA0181] L-3-oxoalanine ; MOD:01169 def: "A protein modification that effectively converts a source amino acid residue to L-oxoalanine." [DeltaMass:349, PubMed:14563551, PubMed:7628016, PubMed:8681943, PubMed:9478923, RESID:AA0185] pyruvic acid iminylated residue ; MOD:01170 def: "A protein modification that effectively forms a 2-ketoimine of pyruvicacid with a residue amino group." [UniMod:422] O-acetyl-L-threonine ; MOD:01171 def: "A protein modification that effectively converts an L-threonine residue to O-acetyl-L-threonine." [PubMed:16728640, RESID:AA0423, UniMod:1#T] N-alanyl-glycosylsphingolipidinositolethanolamine ; MOD:01172 def: "A protein modification that effectively converts an L-alanine residue to N-alanyl-glycosylsphingolipidinositolethanolamine." [PubMed:12626404, RESID:AA0424] N-asparaginyl-glycosylsphingolipidinositolethanolamine ; MOD:01173 def: "A protein modification that effectively converts an L-asparagine residue to N-asparaginyl-glycosylsphingolipidinositolethanolamine." [PubMed:12626404, RESID:AA0425] S-(15-deoxy-Delta12,14-prostaglandin J2-9-yl)-L-cysteine ; MOD:01174 def: "A protein modification that effectively converts an L-cysteine residue to S-(15-deoxy-Delta12,14-prostaglandin J2-9-yl)-L-cysteine." [ChEBI:27485, PubMed:11466314, PubMed:12684535, RESID:AA0426] S-phycourobilin-L-cysteine ; MOD:01175 def: "A protein modification that effectively results from forming an adduct between a cysteine residue and the tetrapyrrole compound phycourobilin." [PubMed:1903388, PubMed:3208761, PubMed:3838747, RESID:AA0427] L-dehydrolysinonorleucine ; MOD:01176 def: "A protein modification that effectively cross-links an L-lysine residue and an L-lysine residue converted to allysine with a carbon-nitrogen bond to form L-dehydrolysinonorleucine." [PubMed:16929109, RESID:AA0430] 1'-(1,2,3-trihydroxyprop-2-yl)-L-histidine ; MOD:01177 def: "A protein modification that effectively converts an L-histidine residue to 1'-(1,2,3-trihydroxyprop-2-yl)-L-histidine." [PubMed:16760471, RESID:AA0431] S-(aspart-4-yloxy) thiocarbonate ; MOD:01178 def: "A protein modification that effectively converts an L-aspartic acid residue to S-(aspart-4-yloxy) thiocarbonate." [PubMed:16627948, RESID:AA0432] N,N-dimethyl-L-alanine ; MOD:01179 def: "A protein modification that effectively converts an L-alanine residue to N,N-dimethyl-L-alanine." [PubMed:17691833, PubMed:387091, RESID:AA0433] 2-hydroxyglycine observational artifact ; MOD:01180 def: "A protein modification that effectively converts a glycine residue to 2-hydroxyglycine." [ChEBI:38048, PubMed:16178056, PubMed:17431180, PubMed:17823333, RESID:AA0434] L-aspartic acid 4-methyl ester ; MOD:01181 def: "A protein modification that effectively converts an L-aspartic acid residue to L-aspartate 4-methyl ester." [OMSSA:69, PubMed:1556110, PubMed:16888766, PubMed:9629898, RESID:AA0435, UniMod:34#D] 6-(S-L-cysteinyl)-8alpha-(-3'-L-histidino)-FAD ; MOD:01182 def: "A protein modification that crosslinks a cysteine and a histidine residue by forming the adduct 6-(S-L-cysteinyl)-8alpha-(-3'-L-histidino)-FAD." [PubMed:, RESID:AA0436] L-selenocystine (oxidized selenocysteine) (Sec-Sec) ; MOD:01183 def: "A protein modification that effectively cross-links two L-selenocysteine residues to form L-selenocystine," [ChEBI:28553, PubMed:17715293, PubMed:6076213, RESID:AA0437] L-selenocystine (selenium disubstituted L-cystine) ; MOD:01184 def: "A protein modification that effectively substitutes two selenium atoms for two sulfur atoms in L-cystine to form L-selenocystine." [PubMed:17715293, RESID:AA0437#CYS2] 4-amidated L-aspartic acid ; MOD:01185 def: "A protein modification that effectively converts an L-aspartic acid residue to L-asparagine." [PubMed:17962566, RESID:AA0003#ASP] acetylated L-threonine ; MOD:01186 def: "A protein modification that effectively converts an L-threonine residue to either N-acetyl-L-threonne, or O-acetyl-Lthreonine." [PubMed:18688235] L-pyrrolysine residue ; MOD:01187 def: "A protein modification that inserts or replaces a residue with an L-pyrrolysine residue, a natural pretranslational modification." [ChEBI:21860, PubMed:11435424, PubMed:12029131, PubMed:12029132, PubMed:15314242, PubMed:16096277, RESID:AA0321, UniMod:435] N-ethyl iodoacetamide-d5 - site Y ; MOD:01188 def: "modification from UniMod Isotopic label -" [PubMed:11710128, PubMed:12766232, PubMed:3155470, PubMed:957432, UniMod:212#Y] N-ethyl iodoacetamide-d5 - site C ; MOD:01189 def: "modification from UniMod Isotopic label -" [PubMed:12766232, UniMod:212#C] dibromo ; MOD:01190 def: "Modification from UniMod Chemical derivative. OBSOLETE because duplicate and redundant with MOD:01006. Remap to MOD:01006." [UniMod:534] is_obsolete: true N-ethyl iodoacetamide-d0 - site C ; MOD:01191 def: "modification from UniMod Isotopic label -" [PubMed:12766232, UniMod:211#C] N-ethyl iodoacetamide-d0 - site Y ; MOD:01192 def: "modification from UniMod Isotopic label -" [PubMed:11760118, PubMed:12766232, UniMod:211#Y] phosphorylation to pyridyl thiol - site T ; MOD:01193 def: "modification from UniMod Chemical derivative -" [PubMed:1093385, UniMod:264#T] phosphorylation to pyridyl thiol - site S ; MOD:01194 def: "modification from UniMod Chemical derivative -" [PubMed:15279557, UniMod:264#S] benzoyl labeling reagent light form - site K ; MOD:01195 def: "modification from UniMod Isotopic label -" [PubMed:11813307, PubMed:12777388, PubMed:15456300, UniMod:136#K] 5-dimethylaminonaphthalene-1-sulfonyl - site K ; MOD:01196 def: "OBSOLETE because redundant, replaced with MOD:01654. Remap to MOD:01654." [UniMod:139] is_obsolete: true N-heptosyl-L-glutamine ; MOD:01197 def: "A protein modification that effectively converts an L-glutamine residue to N-heptosyl-L-glutamine." [UniMod:490#Q] O-heptosyl-L-serine ; MOD:01198 def: "A protein modification that effectively converts an L-serine residue to O-heptosyl-L-serine." [UniMod:490#S] N-heptosyl-L-arginine ; MOD:01199 def: "A protein modification that effectively converts an L-arginine residue to an N-heptosyl-L-arginine." [UniMod:490#R] O-heptosyl-L-threonine ; MOD:01200 def: "A protein modification that effectively converts an L-threonine residue to O-heptosyl-L-threonine." [UniMod:490#T] N6-heptosyl-L-lysine ; MOD:01201 def: "A protein modification that effectively converts an L-lysine residue to N6-heptosyl-L-lysine." [UniMod:490#K] N-heptosyl-L-asparagine ; MOD:01202 def: "A protein modification that effectively converts an L-asparagine residue to N-heptosyl-L-asparagine." [UniMod:490#N] N6-(pyridylacetyl)lysine ; MOD:01203 def: "A protein modification that effectively converts an L-lysine residue to N6-[(pyrid-3-yl)acetyl]lysine." [PubMed:9276974, UniMod:25#K] prompt loss of methanethiol from oxidixed methionine ; MOD:01204 def: "modification from UniMod Artifact -" [PubMed:9004526, UniMod:526] Hex1HexNAc1NeuAc2 O-glycosylated serine ; MOD:01205 def: "A protein modification that effectively replaces an O3 hydrogen atom of a serine residue with a carbohydrate-like group composed of Hex1HexNAc1NeuAc2 linked through a glycosidic bond." [PubMed:7949339, UniMod:160#S] Hex1HexNAc1NeuAc2 O-glycosylated threonine ; MOD:01206 def: "A protein modification that effectively replaces an O3 hydrogen atom of a threonine residue with a carbohydrate-like group composed of Hex1HexNAc1NeuAc2 linked through a glycosidic bond." [UniMod:160#T] Hex1HexNAc1NeuAc2 N4-glycosylated asparagine ; MOD:01207 def: "A protein modification that effectively replaces an N4 hydrogen atom of an asparagine residue with a carbohydrate-like group composed of Hex1HexNAc1NeuAc2 linked through a glycosidic bond." [UniMod:160#N] copper(1+) carboxylate C-terminal residue ; MOD:01208 def: "A protein modification that effectively converts a C-terminal residue to the copper(1+) carboxylate salt." [UniMod:531#C-term] copper(1+) L-aspartate ; MOD:01209 def: "A protein modification that effectively converts an L-aspartic acid residue to the copper(1+) aspartate salt." [UniMod:531#D] copper(1+) L-glutamate ; MOD:01210 def: "A protein modification that effectively converts an L-glutamic acid residue to the copper(1+) glutamate salt." [UniMod:531#E] N6-(morpholine-2-acetyl)-lysine ; MOD:01211 def: "A protein modification that effectively converts an L-lysine residue to N6-(morpholine-2-acetyl)-lysine." [PubMed:10446193, UniMod:29#K] iodoacetamide N6-derivatized lysine ; MOD:01212 def: "A protein modification that effectively converts an L-lysine residue to N6-(carboxamidomethyl)lysine." [OMSSA:27, PubMed:11510821, PubMed:12422359, PubMed:12686488, UniMod:4#K] iodoacetamide derivatized histidine ; MOD:01213 def: "A protein modification that effectively converts an L-histidine residue to an iodoacetamide derivatized histidine, either 1'- or 3'-(carboxamidolmethyl)histidine." [OMSSA:28, PubMed:11510821, PubMed:12422359, PubMed:15627961, PubMed:2026710, UniMod:4#H] iodoacetamide - site C ; MOD:01214 def: "modification from UniMod Chemical derivative - OBSOLETE because redundant, the difference component of MOD:01060. Remap to MOD:01060." [PubMed:10504701, PubMed:11510821, PubMed:12422359, UniMod:4#C] is_obsolete: true iodoacetamide derivatized aspartic acid ; MOD:01215 def: "A protein modification that effectively converts an L-aspartic acid residue to O4-(carboxamidomethyl)aspartate." [OMSSA:29, PubMed:11510821, PubMed:12422359, PubMed:16526082, UniMod:4#D] iodoacetamide derivatized glutamic acid ; MOD:01216 def: "A protein modification that effectively converts an L-glutamic acid residue to O5-(carboxamidomethyl)glutamate." [OMSSA:30, PubMed:11510821, PubMed:12422359, UniMod:4#E] Sulfanilic Acid (SA), light C12 - site D ; MOD:01217 def: "modification from UniMod Isotopic label -" [PubMed:12872131, UniMod:285#D] Sulfanilic Acid (SA), light C12 - site E ; MOD:01218 def: "modification from UniMod Isotopic label -" [PubMed:15283597, UniMod:285#E] Sulfanilic Acid (SA), heavy C13 - site D ; MOD:01219 def: "modification from UniMod Chemical derivative -" [PubMed:9254591, PubMed:9750125, UniMod:286#D] Sulfanilic Acid (SA), heavy C13 - site E ; MOD:01220 def: "modification from UniMod Chemical derivative -" [PubMed:15121203, PubMed:9254591, UniMod:286#E] O-formyl-L-threonine ; MOD:01221 def: "A protein modification that effectively converts an L-threonine residue to O-formyl-L-threonine." [PubMed:11861642, PubMed:15799070, UniMod:122#T] O-formyl-L-serine ; MOD:01222 def: "A protein modification that effectively converts an L-serine residue to O-formyl-L-serine." [PubMed:15627961, PubMed:15799070, UniMod:122#S] thioacylation of primary amines - site N-term ; MOD:01223 def: "modification from UniMod Other -" [OMSSA:41, PubMed:11710128, PubMed:3155470, PubMed:957432, UniMod:126#N-term] thioacylation of primary amines - site K ; MOD:01224 def: "modification from UniMod Other -" [OMSSA:40, PubMed:11710128, PubMed:3155470, PubMed:957432, UniMod:126#K] monofluorinated L-tyrosine ; MOD:01225 def: "A protein modification that effectively converts an L-tyrosine residue into an L-fluorotyrosine." [OMSSA:46, PubMed:8069568, UniMod:127#Y] monofluorinated L-tryptophan ; MOD:01226 def: "A protein modification that effectively converts an L-tryptophan residue to an L-fluorotryptophan." [PubMed:8069568, UniMod:127#W] monofluorinated L-phenylalanine ; MOD:01227 def: "A protein modification that effectively converts an L-phenylalanine residue to an L-fluorophenylalanine." [DeltaMass:181, OMSSA:46, PubMed:8069568, UniMod:127#F] monoiodinated tyrosine ; MOD:01228 def: "A protein modification that effectively substitutes one hydrogen atom of an L-tyrosine residue with one iodine atom." [DeltaMass:0, OMSSA:65, PubMed:1326520, PubMed:15627961, PubMed:2026710, UniMod:129#Y] L-iodohistidine ; MOD:01229 def: "A protein modification that effectively converts an L-histidine residue to an L-iodohistidine." [PubMed:15627961, PubMed:2026710, UniMod:129#H] Bruker Daltonics SERVA-ICPL(TM) quantification chemistry, light form - site K ; MOD:01230 def: "modification from UniMod Isotopic label -" [PubMed:15602776, UniMod:365#K] 3x(13)C labeled N6-propanoyl-L-lysine ; MOD:01231 def: "A protein modification that effectively converts an L-lysine residue to 3x(13)C labeled N6-propanoyl-L-lysine." [PubMed:11857757, PubMed:11999733, PubMed:12175151, PubMed:12442261, UniMod:59#K] 3x(12)C labeled N6-propanoyl-L-lysine ; MOD:01232 def: "A protein modification that effectively converts an L-lysine residue to 3x(12)C labeled N6-propanoyl-L-lysine." [PubMed:11857757, PubMed:11999733, PubMed:12175151, UniMod:58#K] 3x(2)H labeled N6-acetyl-L-lysine ; MOD:01233 def: "A protein modification that effectively converts an L-lysine residue to 3x(2)H labeled N6-acetyl-L-lysine." [PubMed:11857757, PubMed:11999733, PubMed:12175151, UniMod:56#K] (18)O monosubstituted L-serine ; MOD:01234 def: "modification from UniMod Isotopic label - alkaline phosphatase to dephosphorylate" [PubMed:11467524, UniMod:258#S] (18)O monosubstituted L-threonine ; MOD:01235 def: "modification from UniMod Isotopic label - alkaline phosphatase to dephosphorylate" [PubMed:11467524, PubMed:15549660, UniMod:258#T] (18)O monosubstituted L-tyrosine ; MOD:01236 def: "modification from UniMod Isotopic label - alkaline phosphatase to dephosphorylate" [PubMed:11467524, PubMed:15549660, UniMod:258#Y] cysteine 4-hydroxynonenal adduct ; MOD:01237 def: "A protein modification produced by formation of an adduct of an L-cysteine residue with 4-hydroxynonenal." [PubMed:11327326, PubMed:15133838, PubMed:9629898, UniMod:53#C] lysine 4-hydroxynonenal adduct ; MOD:01238 def: "A protein modification produced by formation of an adduct of an L-lysine residue with 4-hydroxynonenal." [PubMed:11327326, PubMed:15133838, PubMed:9629898, UniMod:53#K] histidine 4-hydroxynonenal adduct ; MOD:01239 def: "A protein modification produced by formation of an adduct of an L-histidine residue with 4-hydroxynonenal." [PubMed:10717661, PubMed:11327326, PubMed:15133838, UniMod:53#H] ubiquitination signature tetrapeptidyl lysine ; MOD:01240 def: "A protein modification that crosslinks the N6-amino of a peptidyl lysine with the carboxyl of leucyl-arginyl-glycyl-glycine, the C-terminal tetrapeptide of ubiquitin." [PubMed:10504701, UniMod:535] 3x(2)H labeled L-aspartic acid 4-methyl ester ; MOD:01241 def: "A protein modification that effectively converts an L-lysine residue to 3x(2)H labeled L-aspartic acid 4-methyl ester." [OMSSA:19, PubMed:12185208, UniMod:298#D] 3x(2)H labeled L-glutamic acid 5-methyl ester ; MOD:01242 def: "A protein modification that effectively converts an L-lysine residue to 3x(2)H labeled L-glutamic acid 5-methyl ester." [OMSSA:20, PubMed:1326520, UniMod:298#E] potassium carboxylate C-terminal residue ; MOD:01243 def: "A protein modification that effectively converts a C-terminal residue to the potassium carboxylate salt." [UniMod:530#C-term] potassium L-glutamate ; MOD:01244 def: "A protein modification that effectively converts an L-glutamioc acid residue to the potassium glutamate salt." [UniMod:530#E] potassium L-aspartate ; MOD:01245 def: "A protein modification that effectively converts an L-aspartic acid residue to the potassium aspartate salt." [UniMod:530#D] fucosylated -site S ; MOD:01246 def: "OBSOLETE because redundant and identical to MOD:00812 after formula correction. Remap to MOD:00812." [PubMed:11344537, PubMed:15189151, PubMed:3311742, PubMed:3578767, UniMod:295#S] is_obsolete: true fucosylated -site T ; MOD:01247 def: "OBSOLETE because redundant and identical to MOD:00813 after formula correction. Remap to MOD:00813." [PubMed:11344537, PubMed:11857757, PubMed:15189151, UniMod:295#T] is_obsolete: true iodouridine monophosphate derivatized tyrosine ; MOD:01248 def: "A protein modification that is produced by reaction of iodouridine monophosphate, or a polynucleotide containing iodouridine, with an L-tyrosine residue to form an ether linkage." [PubMed:11112526, PubMed:11567090, PubMed:6540775, UniMod:292#Y] iodouridine monophosphate derivatized tryptophan ; MOD:01249 def: "A protein modification that is produced by reaction of iodouridine monophosphate, or a polynucleotide containing iodouridine, with an L-tryptophan residue." [PubMed:11112526, PubMed:11567090, PubMed:6540775, UniMod:292#W] iodouridine monophosphate derivatized phenylalanine ; MOD:01250 def: "A protein modification that is produced by reaction of iodouridine monophosphate, or a polynucleotide containing iodouridine, with an L-phenylalanine residue." [PubMed:11112526, PubMed:11567090, PubMed:6540775, UniMod:292#F] N6-[3-(carboxamidomethylthio)propanoyl]lysine ; MOD:01251 def: "A protein modification that effectively converts an L-lysine residue to N6-[3-(carboxamidomethylthio)propanoyl]lysine." [PubMed:15121203, UniMod:293#K] 5-hydro-5-methylimidazol-4-one, methylglyoxal arginine adduct (+54 amu) ; MOD:01252 def: "OBSOLETE because redundant and identical to MOD:00933. Remap to MOD:00933." [PubMed:9448752, UniMod:319#R] is_obsolete: true malondialdehyde lysine adduct (+54 amu) ; MOD:01253 def: "modification from UniMod Chemical derivative - Malondialdehyde (MDA) adduct" [UniMod:319#K] 4x(2)H labeled dimethylated L-lysine ; MOD:01254 def: "A protein modification that effectively converts an L-lysine residue to 4x(2)H labeled dimethylated L-lysine." [OMSSA:189, PubMed:14670044, UniMod:199#K] S-(2-sulfanylethyl)cysteine (Ser) ; MOD:01255 def: "A protein modification that effectively converts an L-serine residue to S-(2-sulfanylethyl)cysteine." [PubMed:11507762, UniMod:200#S] 3-methyl-S-(2-sulfanylethyl)cysteine (Thr) ; MOD:01256 def: "A protein modification that effectively converts an L-threonine residue to 3-methyl-S-(2-sulfanylethyl)cysteine." [PubMed:11507762, UniMod:200#T] 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate - site K ; MOD:01257 def: "modification from UniMod Chemical derivative -" [PubMed:12716131, PubMed:14997490, UniMod:194#K] N-methylmaleimide - site C ; MOD:01258 def: "modification from UniMod Chemical derivative -" [PubMed:9448752, UniMod:314#C] N-methylmaleimide - site K ; MOD:01259 def: "modification from UniMod Chemical derivative -" [PubMed:9448752, UniMod:314#K] nucleophilic addtion to cytopiloyne - site Y ; MOD:01260 def: "modification from UniMod Chemical derivative -" [PubMed:15549660, UniMod:270#Y] nucleophilic addtion to cytopiloyne - site S ; MOD:01261 def: "modification from UniMod Chemical derivative -" [PubMed:15549660, UniMod:270#C] nucleophilic addtion to cytopiloyne - site R ; MOD:01262 def: "modification from UniMod Chemical derivative -" [PubMed:12590383, PubMed:15549660, UniMod:270#R] nucleophilic addtion to cytopiloyne - site K ; MOD:01263 def: "modification from UniMod Chemical derivative -" [PubMed:15549660, UniMod:270#K] nucleophilic addtion to cytopiloyne - site C ; MOD:01264 def: "modification from UniMod Chemical derivative -" [PubMed:15549660, UniMod:270#C] nucleophilic addtion to cytopiloyne - site P ; MOD:01265 def: "modification from UniMod Chemical derivative -" [PubMed:15549660, UniMod:270#P] nucleophilic addition to cytopiloyne+H2O - site C ; MOD:01266 def: "modification from UniMod Chemical derivative -" [PubMed:15549660, UniMod:271#C] nucleophilic addition to cytopiloyne+H2O - site K ; MOD:01267 def: "modification from UniMod Chemical derivative -" [PubMed:11746907, PubMed:15549660, UniMod:271#K] nucleophilic addition to cytopiloyne+H2O - site T ; MOD:01268 def: "modification from UniMod Chemical derivative -" [PubMed:15549660, UniMod:271#T] nucleophilic addition to cytopiloyne+H2O - site R ; MOD:01269 def: "modification from UniMod Chemical derivative -" [PubMed:15549660, UniMod:271#R] nucleophilic addition to cytopiloyne+H2O - site S ; MOD:01270 def: "modification from UniMod Chemical derivative -" [PubMed:14670044, PubMed:15549660, UniMod:271#S] nucleophilic addition to cytopiloyne+H2O - site Y ; MOD:01271 def: "modification from UniMod Chemical derivative -" [PubMed:15549660, UniMod:271#Y] iminobiotinylation - site K ; MOD:01272 def: "modification from UniMod Chemical derivative -" [PubMed:9750125, UniMod:89#K] O-[4-(2-aminoethyl)benzenesulfonyl] serine ; MOD:01273 def: "A protein modification that is produced by formation of an adduct with 4-(2-aminoethyl)benzenesulfonyl fluoride, AEBS, and an L-serine residue." [PubMed:15283597, PubMed:8597590, UniMod:276#S] N'-[4-(2-aminoethyl)benzenesulfonyl] derivatized histidine ; MOD:01274 def: "A protein modification that is produced by formation of an adduct with 4-(2-aminoethyl)benzenesulfonyl fluoride, AEBS, and an L-histidine residue." [PubMed:8597590, UniMod:276#H] N6-[4-(2-aminoethyl)benzenesulfonyl]lysine ; MOD:01275 def: "A protein modification that is produced by formation of an adduct with 4-(2-aminoethyl)benzenesulfonyl fluoride, AEBS, and an L-lysine residue." [PubMed:8597590, UniMod:276#K] O4'-[4-(2-aminoethyl)benzenesulfonyl]tyrosine ; MOD:01276 def: "A protein modification that is produced by formation of an adduct with 4-(2-aminoethyl)benzenesulfonyl fluoride, AEBS, and an L-tyrosine residue." [PubMed:10906242, PubMed:8597590, UniMod:276#Y] crotonaldehyde - site C ; MOD:01277 def: "modification from UniMod Other -" [PubMed:11283024, UniMod:253#C] crotonaldehyde - site K ; MOD:01278 def: "modification from UniMod Other -" [PubMed:11283024, UniMod:253#K] crotonaldehyde - site H ; MOD:01279 def: "modification from UniMod Other -" [PubMed:11283024, PubMed:1443554, UniMod:253#H] EDT-iodo-PEO-biotin - site T ; MOD:01280 def: "modification from UniMod Chemical derivative -" [PubMed:11857757, PubMed:12175151, UniMod:118#T] EDT-iodo-PEO-biotin - site S ; MOD:01281 def: "modification from UniMod Chemical derivative -" [PubMed:16335955, UniMod:118#S] acrolein addition +56 - site H ; MOD:01282 def: "modification from UniMod Other -" [PubMed:10825247, PubMed:15541752, UniMod:206#H] acrolein addition +56 - site K ; MOD:01283 def: "modification from UniMod Other -" [PubMed:10825247, PubMed:15541752, UniMod:206#K] acrolein addition +56 - site C ; MOD:01284 def: "modification from UniMod Other -" [PubMed:10825247, PubMed:15541752, PubMed:9254591, UniMod:206#C] 6x(13)C,1x(15)N labeled L-leucine ; MOD:01285 def: "A protein modification that effectively converts an L-leucine residue to 6x(13)C,1x(15)N isotope labeled L-leucine." [PubMed:11857757, PubMed:11999733, PubMed:12175151, UniMod:695#L] 6x(13)C,1x(15)N labeled L-isoleucine ; MOD:01286 def: "A protein modification that effectively converts an L-isoleucine residue to 6x(13)C,1x(15)N isotope labeled L-isoleucine." [PubMed:11857757, PubMed:11999733, PubMed:12175151, UniMod:695#I] Bruker Daltonics SERVA-ICPL(TM) quantification chemistry, heavy form - site K ; MOD:01287 def: "modification from UniMod Isotopic label -" [PubMed:11857757, PubMed:15602776, UniMod:364#K] acetaldehyde +28 - site H ; MOD:01288 def: "modification from UniMod Other -" [UniMod:255#H] acetaldehyde +28 - site K ; MOD:01289 def: "modification from UniMod Other -" [UniMod:255#K] dihydroxylated residue - site F ; MOD:01290 def: "OBSOLETE because redundant and identical to MOD:00465. Remap to MOD:00465." [PubMed:11857757, PubMed:12175151, PubMed:12686488, PubMed:9252331, UniMod:425] is_obsolete: true dihydroxylated residue - site W ; MOD:01291 def: "OBSOLETE because redundant and identical to MOD:00464. Remap to MOD:00464." [PubMed:12643539, PubMed:12686488, PubMed:6273432, PubMed:9252331, UniMod:425] is_obsolete: true dimethylation of proline residue ; MOD:01292 def: "OBSOLETE because redundant and identical to MOD:00075. Map to MOD:00075." [UniMod:529] is_obsolete: true 1x(18)O labeled deamidated L-asparagine ; MOD:01293 def: "A protein modification that effectively converts an L-asparagine residue to L-aspartic acid with one (18)O." [OMSSA:139, PubMed:8382902, UniMod:366#N] deamidation in presence of O18 -site Q ; MOD:01294 def: "OBSOLETE identical and redundant with MOD:00791. Remap to MOD:00791." [PubMed:8382902] is_obsolete: true monosodium L-aspartate ; MOD:01295 def: "A protein modification that effectively converts an L-aspartic acid residue to monosodium L-aspartate." [PubMed:12216740, UniMod:30#D] monosodium L-glutamate ; MOD:01296 def: "A protein modification that effectively converts an L-glutamic acid residue to monosodium L-glutamate." [PubMed:12216740, UniMod:30#E] 5x(13)C labeled L-proline ; MOD:01297 def: "A protein modification that effectively converts an L-proline residue to 5x(13)C labeled L-proline." [PubMed:12716131, UniMod:772#P] reduced cysteine 4-hydroxynonenal adduct ; MOD:01298 def: "A protein modification produced by formation of an adduct of an L-cysteine residue with 4-hydroxynonenal artificially reduced by a reagent such as NaBH4." [PubMed:11910026, PubMed:15133838, UniMod:335#C] reduced lysine 4-hydroxynonenal adduct ; MOD:01299 def: "A protein modification produced by formation of an adduct of an L-histidine residue with 4-hydroxynonenal artificially reduced by a reagent such as NaBH4." [PubMed:11910026, PubMed:12148805, PubMed:15133838, UniMod:335#K] reduced histidine 4-hydroxynonenal adduct ; MOD:01300 def: "A protein modification produced by formation of an adduct of an L-histidine residue with 4-hydroxynonenal artificially reduced by a reagent such as NaBH4." [PubMed:11910026, PubMed:12148805, PubMed:15133838, UniMod:335#H] methylamine Michael addition derivatized threonine ; MOD:01301 def: "A protein modification that effectively converts an L-threonine residue to 2-amino-3-(methylamino)butanoic acid." [PubMed:11743741, UniMod:337#T] methylamine Michael addition derivatized serine ; MOD:01302 def: "A protein modification that effectively converts an L-serine residue to 2-amino-3-(methylamino)propanoic acid." [PubMed:11743741, UniMod:337#S] N4-hexosaminylated asparagine ; MOD:01303 def: "A protein modification that effectively converts an L-asparagine residue to an N4-hexosaminyl-L-asparagine." [PubMed:11467524, UniMod:454#N] N6-hexosaminylated lysine ; MOD:01304 def: "A protein modification that effectively converts an L-lysine residue to an N4-hexosaminyl-L-lysine, as a synthetic peptide protectting group." [UniMod:454#K] N1'-hexosaminylated tryptophan ; MOD:01305 def: "A protein modification that effectively converts an L-tryptophan residue to N1'-hexosaminyl-L-tryptophan." [UniMod:454#W] O-hexosaminylated threonine ; MOD:01306 def: "A protein modification that effectively converts an L-threonine residue to O-hexosaminyl-L-threonine." [UniMod:454#T] thiophosphate labeled with biotin-HPDP -site S ; MOD:01307 def: "modification from UniMod Chemical derivative -" [UniMod:332#S] thiophosphate labeled with biotin-HPDP -site T ; MOD:01308 def: "modification from UniMod Chemical derivative -" [UniMod:332#T] thiophosphate labeled with biotin-HPDP - site Y ; MOD:01309 def: "modification from UniMod Chemical derivative - " [UniMod:332#Y] quaternary amine labeling reagent light form N6-L-lysine ; MOD:01310 def: "A protein modification that effectively replaces a lysine N6-hydrogen with a quaternary amine reagent light form group." [PubMed:11857757, UniMod:60#K] quaternary amine labeling reagent heavy form (+3amu) N6-L-lysine ; MOD:01311 def: "A protein modification that effectively replaces a lysine N6-hydrogen with a quaternary amine reagent heavy (+3amu) form group." [PubMed:11698400, PubMed:11857757, PubMed:11914093, UniMod:61#K] quaternary amine labeling reagent heavy form (+6amu) N6-L-lysine ; MOD:01312 def: "A protein modification that effectively replaces a lysine N6-hydrogen with a quaternary amine reagent heavy (+6amu) form group." [PubMed:11857757, UniMod:62#K] quaternary amine labeling reagent heavy form (+9amu) N6-L-lysine ; MOD:01313 def: "A protein modification that effectively replaces a lysine N6-hydrogen with a quaternary amine reagent heavy (+9amu) form group." [PubMed:11857757, UniMod:63#K] 4x(1)H,4x(12)C-labeled N6-succinyl-L-lysine ; MOD:01314 def: "A protein modification that effectively converts an L-lysine residue to 4x(1)H,4x(12)C-labeled N6-succinyl-L-lysine." [PubMed:11857757, PubMed:12175151, PubMed:12716131, UniMod:64#K] 4x(2)H labeled N6-succinyl-L-lysine ; MOD:01315 def: "A protein modification that effectively converts an L-lysine residue to 4x(2)H-labeled N6-succinyl-L-lysine." [PubMed:11344537, PubMed:11857757, PubMed:12175151, PubMed:15189151, UniMod:65#K] 4x(13)C labeled N6-succinyl-L-lysine ; MOD:01316 def: "A protein modification that effectively converts an L-lysine residue to 4x(13)C labeled N6-succinyl-L-lysine." [PubMed:11344537, PubMed:11857757, PubMed:12175151, PubMed:15189151, UniMod:66#K] phosphorylation to amine thiol - site T ; MOD:01317 def: "modification from UniMod Chemical derivative -" [PubMed:12216740, UniMod:178#T] phosphorylation to amine thiol - site S ; MOD:01318 def: "modification from UniMod Chemical derivative -" [PubMed:11510821, PubMed:12216740, PubMed:12422359, UniMod:178#S] Michael addition of BHT quinone methide to histidine ; MOD:01319 def: "modification from UniMod Other" [PubMed:11510821, PubMed:12422359, PubMed:9448752, UniMod:176#H] Michael addition of BHT quinone methide to lysine ; MOD:01320 def: "modification from UniMod Other" [PubMed:16078144, PubMed:9448752, UniMod:176#K] Michael addition of BHT quinone methide to cysteine ; MOD:01321 def: "modification from UniMod Other" [PubMed:11510821, PubMed:12422359, PubMed:9448752, UniMod:176#C] propionaldehyde +40 - site K ; MOD:01322 def: "modification from UniMod Other -" [PubMed:15549660, UniMod:256#K] propionaldehyde +40 - site H ; MOD:01323 def: "modification from UniMod Other -" [UniMod:256#H] acetaldehyde +26 - site H ; MOD:01324 def: "modification from UniMod Other -" [PubMed:7744761, UniMod:254#H] acetaldehyde +26 - site K ; MOD:01325 def: "modification from UniMod Other -" [PubMed:7744761, UniMod:254#K] 9x(13)C labeled L-tyrosine ; MOD:01326 def: "A protein modification that effectively converts an L-tyrosine residue to 9x(13)C labeled L-tyrosine." [PubMed:11510821, PubMed:12422359, PubMed:12716131, UniMod:184#Y] 9x(13)C labeled L-phenylalanine ; MOD:01327 def: "A protein modification that effectively converts an L-phenylalanine residue to 9x(13)C labeled L-phenylalanine." [PubMed:12716131, UniMod:184#F] iodoacetic acid - site W ; MOD:01328 def: "modification from UniMod Chemical derivative - hydroxylethanone" [PubMed:17525468, UniMod:6#W] iodoacetic acid - site C ; MOD:01329 def: "OBSOLETE because duplicate and redundant with MOD:01061. Remap to MOD:01061" [DeltaMass:197] is_obsolete: true iodoacetic acid -site K ; MOD:01330 def: "OBSOLETE because identical with MOD:01094. Remap to MOD:01094" [PubMed:18688235] is_obsolete: true 6x(13)C labeled L-arginine ; MOD:01331 def: "A protein modification that effectively converts an L-arginine residue to 6x(13)C labeled L-arginine." [OMSSA:136, PubMed:12716131, UniMod:188#R] 6x(13)C labeled L-leucine ; MOD:01332 def: "A protein modification that effectively converts an L-leucine residue to 6x(13)C labeled L-leucine." [PubMed:12716131, UniMod:188#L] 6x(13)C labeled L-isoleucine ; MOD:01333 def: "A protein modification that effectively converts an L-isoleucine residue to 6x(13)C labeled L-isoleucine." [PubMed:12716131, PubMed:12766232, UniMod:188#I] 6x(13)C labeled L-lysine ; MOD:01334 def: "A protein modification that effectively converts an L-lysine residue to 6x(13)C labeled L-lysine." [OMSSA:138, PubMed:11857757, PubMed:11999733, PubMed:12175151, PubMed:12716131, UniMod:188#K] 6x(13)C labeled 4-sulfophenyl isothiocyanate derivatized lysine ; MOD:01335 def: "modification from UniMod Chemical derivative -" [PubMed:11467524, PubMed:16526082, UniMod:464#K] deamidation followed by a methylation -site Q ; MOD:01336 def: "OBSOLETE - identical and redundant with MOD:00657. Remap to MOD:00657." [PubMed:18688235] is_obsolete: true deamidated 4-methyl esterified asparagine ; MOD:01337 def: "A protein modification that effectively converts an L-asparagine residue to L-aspartate 4-methyl ester." [UniMod:528#N] N6-ethyl-L-lysine ; MOD:01338 def: "A protein modification that effectively converts an L-lysine residue to N6-ethyl-L-lysine." [PubMed:9629898, UniMod:280#K] ethylated residue ; MOD:01339 def: "A protein modification that effectively replaces a hydrogen atom with an ethyl group." [PubMed:9629898, UniMod:280] ESP-Tag heavy d10 - site K ; MOD:01340 def: "modification from UniMod Isotopic label -" [PubMed:11078590, PubMed:11085420, PubMed:11821862, UniMod:91#K] ESP-Tag light d0 - site K ; MOD:01341 def: "modification from UniMod Isotopic label -" [UniMod:90#K] selenium substitution for sulfur - site M ; MOD:01342 def: "OBSOLETE because redundant and identical to MOD:00530. Remap to MOD:00530." [PubMed:12148805, UniMod:162] is_obsolete: true selenium substitution for sulfur - site C ; MOD:01343 def: "OBSOLETE because redundant and identical to MOD:00686. Remap to MOD:00686." [PubMed:12148805, UniMod:162] is_obsolete: true dehydrogenated residue - site S ; MOD:01344 def: "OBSOLETE because redundant and identical with MOD:00835. Remap to MOD:00835." [PubMed:9252331, PubMed:9276974, UniMod:401] is_obsolete: true 2-amino-3-oxobutanoic acid ; MOD:01345 def: "A protein modification that effectively converts an L-threonine residue to 2-amino-3-oxobutanoic acid." [OMSSA:23, PubMed:12716131, PubMed:9252331, UniMod:401#T] N4-hexosylated asparagine ; MOD:01346 def: "A protein modification that effectively converts an L-asparagine residue to an N4-hexosyl-L-asparagine." [PubMed:11112526, PubMed:11567090, PubMed:15279557, PubMed:6540775, UniMod:41#N] hexose glycated L-lysine ; MOD:01347 def: "A modification produced in a non-enzymatic reaction between a carbohydrate carbonyl group (C1 of aldohexose or C2 of fructose) and an L-lysine residue to form a Schiff-base or an Amadori ketosamine lysine adduct." [DeltaMass:0, PubMed:15279557, UniMod:41#K] O-hexosylated threonine ; MOD:01348 def: "A protein modification that effectively converts an L-threonine residue to an O-hexosyl-L-threonine." [PubMed:15279557, PubMed:8597590, UniMod:41#T] hydrolyzed N-ethylmaleimide cysteine adduct ; MOD:01349 def: "modification from UniMod Chemical derivative -" [UniMod:320#C] hydrolyzed N-ethylmaleimide lysine adduct ; MOD:01350 def: "modification from UniMod Chemical derivative -" [UniMod:320#K] nitrated L-tryptophan ; MOD:01351 def: "A protein modification that effectively converts an L-tryptophan residue to a nitrated L-tryptophan." [OMSSA:85, PubMed:8839040, PubMed:9252331, UniMod:354#W] nitrated L-tyrosine ; MOD:01352 def: "A protein modification that effectively converts an L-tyrosine residue to a nitrated L-tyrosine." [OMSSA:86, PubMed:14678012, PubMed:8839040, PubMed:9252331, UniMod:354#Y] amidination of lysines or N-terminal amines with methyl acetimidate - site K ; MOD:01353 def: "modification from UniMod Chemical derivative -" [PubMed:12643539, PubMed:15602776, PubMed:6273432, UniMod:141#K] Hex1HexNAc1NeuAc1 N4-glycosylated asparagine ; MOD:01354 def: "A protein modification that effectively replaces an N4 hydrogen atom of an asparagine residue with a carbohydrate-like group composed of Hex1HexNAc1NeuAc1 linked through a glycosidic bond." [PubMed:11698400, UniMod:149#N] Hex1HexNAc1NeuAc1O-glycosylated threonine ; MOD:01355 def: "A protein modification that effectively replaces an O3 hydrogen atom of a threonine residue with a carbohydrate-like group composed of Hex1HexNAc1NeuAc1 linked through a glycosidic bond." [UniMod:149#T] Hex1HexNAc1NeuAc1 O-glycosylated serine ; MOD:01356 def: "A protein modification that effectively replaces an O3 hydrogen atom of a serine residue with a carbohydrate-like group composed of Hex1HexNAc1NeuAc1 linked through a glycosidic bond." [PubMed:7856876, UniMod:149#S] 2x(13)C,4x(2)H labeled dimethylated L-lysine ; MOD:01357 def: "A protein modification that effectively replaces two hydrogen atoms of an L-lysine residue containing common isotopes with two (13)C,3x(2)H labeled methyl groups to form a 2x(13)C,6x(2)H labeled dimethylated L-lysine." [PubMed:12686488, PubMed:16335955, UniMod:510#K] Bruker Daltonics SERVA-ICPL(TM) quantification chemistry, medium form - site N-term ; MOD:01358 def: "modification from UniMod Isotopic label - Use when labelling post-digest" [PubMed:15602776, UniMod:687#N-term] Bruker Daltonics SERVA-ICPL(TM) quantification chemistry, medium form - site K ; MOD:01359 def: "modification from UniMod Isotopic label - Use when labelling post-digest" [PubMed:15602776, UniMod:687#K] 4-sulfophenyl isothiocyanate N6-derivatized lysine ; MOD:01360 def: "A protein modification that effectively converts an L-lysine residue to the 4-sulfophenyl isothiocyanate adduct, N6-[(4-sulfophenyl)carbamothioyl]lysine." [PubMed:14689565, PubMed:14745769, PubMed:15549660, PubMed:16526082, UniMod:261#K] O-thiophospho-L-threonine ; MOD:01361 def: "A protein modification that effectively converts an L-threonine residue to O-thiophospho-L-threonine." [PubMed:11507762, PubMed:12110917, UniMod:260#T] O-thiophospho-L-serine ; MOD:01362 def: "A protein modification that effectively converts an L-serine residue to O-thiophospho-L-serine." [PubMed:11507762, PubMed:12110917, UniMod:260#S] O4'-thiophospho-L-tyrosine ; MOD:01363 def: "A protein modification that effectively converts an L-tyrosine residue to O4'-thiophospho-L-tyrosine." [PubMed:12110917, PubMed:15549660, UniMod:260#Y] fluorescein-5-thiosemicarbazide - site S ; MOD:01364 def: "modification from UniMod Chemical derivative -" [PubMed:11467524, UniMod:478#S] fluorescein-5-thiosemicarbazide - site C ; MOD:01365 def: "modification from UniMod Chemical derivative -" [UniMod:478#C] fluorescein-5-thiosemicarbazide - site K ; MOD:01366 def: "modification from UniMod Chemical derivative -" [UniMod:478#K] fluorescein-5-thiosemicarbazide - site P ; MOD:01367 def: "modification from UniMod Chemical derivative -" [UniMod:478#P] fluorescein-5-thiosemicarbazide - site R ; MOD:01368 def: "modification from UniMod Chemical derivative -" [PubMed:15525938, UniMod:478#R] deamidated and methyl esterified residue ; MOD:01369 def: "A protein modification that effectively replaces a carboxamido group with a carboxyl methyl ester group." [UniMod:528] 6x(13)C,1x(15)N labeled residue ; MOD:01370 def: "A protein modification that effectively converts a residue containing common isotopes to a 6x(13)C,1x(15)N labeled residue." [PubMed:11857757, PubMed:11999733, PubMed:12175151, UniMod:695] deamidation in presence of O18 ; MOD:01371 def: "OBSOLETE bcecause identical and redundant with MOD:00851. Remap to MOD:00851." [PubMed:8382902] is_obsolete: true (2S)-4-hydroxyleucine ; MOD:01372 def: "A protein modification that effectively converts an L-leucine residue to a (2S)-4-hydroxyleucine." [PubMed:363352, PubMed:9164839, RESID:AA0442] (2S,4R)-5-hydroxyleucine ; MOD:01373 def: "A protein modification that effectively converts an L-leucine residue to a (2S,4R)-5-hydroxyleucine." [PubMed:16858410, PubMed:7690768, PubMed:9164839, RESID:AA0443] (2S,4R)-5-oxoleucine ; MOD:01374 def: "A modification that effectively oxygenates C5 of an L-leucine residue to form a (2S,4R)-5-oxoleucine." [ChEBI:43739, PubMed:16858410, RESID:AA0444] (2S,4R)-4,5-dihydroxyleucine ; MOD:01375 def: "A protein modification that effectively converts an L-leucine residue to a (2S,4R)-4,5-dihydroxyleucine." [PubMed:6010785, PubMed:6893271, RESID:AA0445] (2S,3S,4R)-3,4-dihydroxyisoleucine ; MOD:01376 def: "A protein modification that effectively converts an L-isoleucine residue to a (2S,3S,4R)-3,4-dihydroxyisoleucine." [PubMed:11320328, RESID:AA0447] (2S,3R,4S)-4-hydroxyisoleucine ; MOD:01377 def: "A protein modification that effectively converts an L-isoleucine residue to a (2S,3R,4S)-4-hydroxyisoleucine." [PubMed:363352, RESID:AA0448] (2S,3R,4R)-4,5-dihydroxyisoleucine ; MOD:01378 def: "A protein modification that effectively converts an L-isoleucine residue to a (2S,3R,4R)-4,5-dihydroxyisoleucine." [PubMed:11805306, PubMed:18552824, PubMed:363352, RESID:AA0449] 2'-methylsulfonyl-L-tryptophan ; MOD:01379 def: "A protein modification that effectively converts an L-tryptophan residue to 2'-methylsulfonyl-L-tryptophan." [PubMed:6893271, RESID:AA0450] 2'-(S-L-cysteinyl)-6'-hydroxy-L-tryptophan sulfoxide ; MOD:01380 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-tryptophan residue by a thioether bond to form 2'-(S-L-cysteinyl)-6'-hydroxy-L-tryptophan sulfoxide." [PubMed:11805306, PubMed:18552824, PubMed:363352, PubMed:4865716, RESID:AA0451] O-palmitoleyl-L-serine ; MOD:01381 def: "A protein modification that effectively converts an L-serine residue to O-palmitoleyl-L-serine." [OMSSA:186, PubMed:17141155, RESID:AA0455] N,N,N-trimethyl-L-methionine ; MOD:01382 def: "A protein modification that effectively converts an L-methionine residue to N,N,N-trimethyl-L-methionine." [PubMed:18611379, RESID:AA0456] L-cystine S-oxide ; MOD:01383 def: "A protein modification that effectively cross-links two L-cysteine residues and oxidizes a sulfur to form L-cystine S-oxide." [RESID:AA0457] aminomalonic acid (Ser) ; MOD:01384 def: "A protein modification that effectively converts an L-serine residue to an aminomalonic acid." [PubMed:1621954, PubMed:5415959, PubMed:6366787, PubMed:7457858, RESID:AA0458] 3-hydroxy-L-phenylalanine ; MOD:01385 def: "A protein modification that effectively converts an L-phenylalanine residue to 3-hydroxy-L-phenylalanine." [ChEBI:16795, OMSSA:63, PubMed:10625477, PubMed:15651011, PubMed:16734421, PubMed:1880060, PubMed:7398618, PubMed:7844053, RESID:AA0462] 3-hydroxy-L-valine ; MOD:01386 def: "A protein modification that effectively converts an L-valine residue to 3-hydroxy-L-valine." [PubMed:7328054, RESID:AA0463] O-methyl-L-threonine ; MOD:01387 def: "A protein modification that effectively converts an L-threonine residue to O-methyl-L-threonine." [PubMed:7328054, RESID:AA0464] 1-amino-2-propanol ; MOD:01388 def: "A protein modification that effectively converts an L-threonine residue into 1-amino-2-propanol." [ChEBI:15675, PubMed:7328054, RESID:AA0465] L-isoleucine thiazole-4-carboxylic acid ; MOD:01389 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-isoleucine residue to form L-isoleucine thiazole-4-carboxylic acid." [PubMed:11320328, RESID:AA0466] L-valine thiazole-4-carboxylic acid ; MOD:01390 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-valine residue to form L-valine thiazole-4-carboxylic acid." [PubMed:7328054, RESID:AA0467] L-valine 5-(methoxymethyl)thiazole-4-carboxylic acid ; MOD:01391 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-valine residue, and C-5 methoxymethylates to form L-valine 5-(methoxymethyl)thiazole-4-carboxylic acid." [PubMed:10625477, PubMed:1880060, PubMed:7844053, RESID:AA0468] L-asparagine 5-methylthiazole-4-carboxylic acid ; MOD:01392 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-asparagine residue, and C-4 methylates to form L-asparagine 5-methylthiazole-4-carboxylic acid." [PubMed:10625477, PubMed:1880060, PubMed:7844053, RESID:AA0469] L-cysteine pyridine-2,5-dicarboxylic acid ; MOD:01393 def: "A protein modification that crosslinks two serine residues and a cysteine residue by formation of a pyridine-2,5-dicarboxylic acid." [PubMed:10625477, PubMed:1880060, PubMed:7844053, RESID:AA0470] L-cysteine 5-amino-3,4,5,6-tetrahydropyridine-2,5-dicarboxylic acid ; MOD:01394 def: "A protein modification that crosslinks two serine residues and a cysteine residue by formation of a 5-amino-3,4,5,6-tetrahydropyridine-2,5-dicarboxylic acid." [PubMed:11320328, RESID:AA0471] 4-(1-hydroxyethyl)-7-isoleucino-2-(threonin-O3-ylcarbonyl)-7,8-dihydroquinolin-8-ol ; MOD:01395 def: "A protein modification that effectively results from forming an adduct between an isoleucine residue, a threonine residue and the quinaldate compound 2-carboxy-4-(1-hydroxyethyl)--7,8-dihydroquinolin-8-ol." [PubMed:11320328, RESID:AA0472] 5-hydroxy-3-methyl-L-proline (Pro) ; MOD:01396 def: "A protein modification that effectively converts an L-proline residue to a 5-hydroxy-3-methyl-L-proline." [PubMed:7592021, PubMed:8557573, RESID:AA0473] L-serine 5-methyloxazole-4-carboxylic acid ; MOD:01397 def: "A protein modification that effectively crosslinks an L-serine residue and an L-threonine residue to form L-serine 5-methyloxazole-4-carboxylic acid." [PubMed:7592021, PubMed:8557573, RESID:AA0474] N6-propanoyl-L-lysine ; MOD:01398 def: "A protein modification that effectively converts an L-lysine residue to N6-propanoyl-L-lysine." [PubMed:17267393, PubMed:17684016, PubMed:20715035, RESID:AA0475, UniMod:58#K] N6-(ADP-ribosyl)-L-lysine ; MOD:01399 def: "A protein modification that effectively converts an L-lysine residue to an N6-(ADP-ribosyl)-L-lysine." [PubMed:18436469, RESID:AA0476] L-lysyl-poly(ADP-ribose) ; MOD:01400 def: "A protein modification that effectively converts an L-lysine residue to an L-lysyl-poly(ADP-ribose)." [PubMed:6772638, RESID:AA0477] (2S,3S)-3-hydroxyasparagine ; MOD:01401 def: "A protein modification that effectively converts an L-asparagine residue to a (2S,3S)-3-hydroxyasparagine." [ChEBI:50789, PubMed:11823643, PubMed:12042299, PubMed:12215170, PubMed:17573339, RESID:AA0478] (2S,3R,4R)-3,4-dihydroxyproline ; MOD:01402 def: "A protein modification that effectively converts an L-proline residue to a (2S,3R,4R)-3,4-dihydroxyproline." [PubMed:6893271, RESID:AA0479] (2S)-4,5,5'-trihydroxyleucine ; MOD:01403 def: "A protein modification that effectively converts an L-leucine residue to a (2S)-4,5,5'-trihydroxyleucine." [PubMed:6893271, RESID:AA0480] L-asparagine thiazole-4-carboxylic acid ; MOD:01404 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-asparagine residue to form L-asparagine thiazole-4-carboxylic acid." [PubMed:7592021, PubMed:8557573, RESID:AA0481] L-proline thiazole-4-carboxylic acid ; MOD:01405 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-proline residue to form L-proline thiazole-4-carboxylic acid." [PubMed:7592021, PubMed:8557573, RESID:AA0482] L-threonine thiazole-4-carboxylic acid ; MOD:01406 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-threonine residue to form L-threonine thiazole-4-carboxylic acid." [PubMed:11320328, RESID:AA0483] L-phenylalanine thiazoline-4-carboxylic acid ; MOD:01407 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-phenylalanine residue to form L-phenylalanine thiazoline-4-carboxylic acid." [PubMed:7592021, PubMed:8557573, RESID:AA0484] L-threonine thiazoline-4-carboxylic acid ; MOD:01408 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-threonine residue to form L-threonine thiazoline-4-carboxylic acid." [PubMed:11320328, RESID:AA0485] trihydroxylated residue ; MOD:01409 def: "A protein modification that effectively replaces three hydrogen atoms with three hydroxyl groups." [PubMed:18688235] hydroxylated leucine ; MOD:01410 def: "A protein modification that effectively converts an L-leucine residue to an hydroxylated leucine." [PubMed:18688235] monohydroxylated leucine ; MOD:01411 def: "A protein modification that effectively converts an L-leucine residue to a monohydroxylated leucine." [PubMed:18688235] dihydroxylated leucine ; MOD:01412 def: "A protein modification that effectively converts an L-leucine residue to a dihydroxylated leucine." [PubMed:18688235] trihydroxylated leucine ; MOD:01413 def: "A protein modification that effectively converts an L-leucine residue to a trihydroxylated leucine." [PubMed:18688235] hydroxylated isoleucine ; MOD:01414 def: "A protein modification that effectively converts an L-isoleucine residue to an hydroxylated isoleucine." [PubMed:18688235] monohydroxylated isoleucine ; MOD:01415 def: "A protein modification that effectively converts an L-isoleucine residue to a monohydroxylated isoleucine." [PubMed:18688235] dihydroxylated isoleucine ; MOD:01416 def: "A protein modification that effectively converts an L-isoleucine residue to a dihydroxylated isoleucine." [PubMed:18688235] monomethylated proline ; MOD:01417 def: "A protein modification that effectively converts an L-proline residue to a monomethylated proline." [PubMed:18688235] methylated threonine ; MOD:01418 def: "A protein modification that effectively converts an L-threonine residue to a methylated threonine, such as O-methyl-L-threonine." [PubMed:18688235] oxazole/oxazoline ring crosslinked residues ; MOD:01419 def: "A protein modification that crosslinks two residues by condensation of a serine or threonine hydroxyl with the carbonyl of the preceding residue to form an oxazole or oxazoline ring, or by rearrangement and condensation of a cysteine with the carbonyl of the preceding residue to form a 1,3-oxazole-4-carbothionic acid." [PubMed:18688235] thiazole/thiazoline ring croslinked residues ; MOD:01420 def: "A protein modification that crosslinks two residues by condensation of a cysteine thiol with the carbonyl of the preceding residue to form a thiazole or thiazoline ring." [PubMed:18688235] oxazole/oxazoline ring crosslinked residues (Ser) ; MOD:01421 def: "A protein modification that crosslinks two residues by condensation of a serine hydroxyl with the carbonyl of the preceding residue to form an oxazole or oxazoline ring." [PubMed:18688235] oxazole/oxazoline ring crosslinked residues (Thr) ; MOD:01422 def: "A protein modification that crosslinks two residues by condensation of a threonine hydroxyl with the carbonyl of the preceding residue to form a 5-methyloxazole or 5-methyloxazoline ring." [PubMed:18688235] palmitoleylated residue ; MOD:01423 def: "A protein modification that effectively replaces a hydrogen atom with a palmitoleyl group." [UniMod:431] quinaldate modified residue ; MOD:01424 def: "A protein modification that effectively results from forming an adduct with a compound containing a quinaldate, kynurenate, or xanthurenate group." [PubMed:18688235] pyridinyl ring crosslinked residues ; MOD:01425 def: "A protein modification that crosslinks three residues by formation of a pyridinyl ring, such as pyridine-2,5-dicarboxylic acid or 5-aminopiperideine-2,5-dicarboxylic acid." [PubMed:18688235] isotope tagged reagent derivatized residue ; MOD:01426 def: "A protein modification that forms an adduct with a particular isotope labeled compound used as a reagent." [PubMed:18688235] 2-aminobutanoic acid (Abu) ; MOD:01427 def: "OBSOLETE because redundant and identical to MOD:00819. Remap to MOD:00819." [PubMed:18688235] is_obsolete: true (13)C isotope tagged reagent ; MOD:01428 def: "A protein modification that forms an adduct with a (13)C labeled compound used as a reagent." [PubMed:18688235] (15)N isotope tagged reagent ; MOD:01429 def: "A protein modification that forms an adduct with a (15)N labeled compound used as a reagent." [PubMed:18688235] (18)O isotope tagged reagent ; MOD:01430 def: "A protein modification that forms an adduct with a (13)C labeled compound used as a reagent." [PubMed:18688235] (2)H deuterium tagged reagent ; MOD:01431 def: "A protein modification that forms an adduct with a (2)H labeled compound used as a reagent." [PubMed:18688235] (2S,4S)-4,5-dihydroxyleucine ; MOD:01432 def: "A protein modification that effectively converts an L-leucine residue to a (2S,4S)-4,5-dihydroxyleucine." [PubMed:3718926, RESID:AA0446] 1-amino-2-propanone ; MOD:01433 def: "A protein modification that effectively converts an L-threonine residue into 1-amino-2-propanone." [ChEBI:17906, PubMed:12715872, PubMed:19196969, RESID:AA0486] 4-hydroxy-L-glutamic acid ; MOD:01434 def: "A protein modification that effectively converts an L-glutamic acid residue to a 4-hydroxy-L-glutamic acid." [PubMed:893891, RESID:AA0487] 2-(cystein-S-ylcarbonyl)-3-methyl-4-(glutam-5-yloxy)methylindole ; MOD:01435 def: "A protein modification that effectively results from forming an adduct between a cysteine residue, a glutamic acid residue and the indole compound 2-carboxy-3-methyl-4-hydroxymethyl--indole." [PubMed:893891, RESID:AA0488] cyclo[(prolylserin)-O-yl] cysteinate (Cys) ; MOD:01436 def: "A protein modification that effectively converts an L-cysteine residue to cyclo[(prolylserin)-O-yl] cysteinate." [PubMed:7961166, RESID:AA0489#CYS] cyclo[(prolylserin)-O-yl] cysteinate (Cys-Pro-Ser cross-link) ; MOD:01437 def: "A protein modification that effectively converts an L-cysteine residue, an L-proline residue, and an L-serine residue to cyclo[(prolylserin)-O-yl] cysteinate." [PubMed:7961166, RESID:AA0489#TRI] S-[2-(pyridin-2-yl)ethyl]-L-cysteine ; MOD:01438 def: "A protein modification that effectively converts an L-cysteine residue to S-[2-(pyridin-2-yl)ethyl]-L-cysteine." [PubMed:18369855, PubMed:18688235] S-[2-(pyridin-4-yl)ethyl]-L-cysteine ; MOD:01439 def: "A protein modification that effectively converts an L-cysteine residue to S-[2-(pyridin-4-yl)ethyl]-L-cysteine." [PubMed:18688235, PubMed:6528972] glutamyl semialdehyde ; MOD:01440 def: "A protein modification that effectively converts a source amino acid residue to an L-glutamyl semialdehyde." [PubMed:18688235] natural, standard, encoded residue ; MOD:01441 def: "A protein modification that inserts or replaces a residue with a natural, standard, encoded residue." [PubMed:18688235, PubMed:6692818] 3-(O4'-L-tyrosyl)-L-valine ; MOD:01442 def: "A protein modification that effectively cross-links an L-valine residue and an L-tyrosine residue by an ether bond to form 3-(O4'-L-tyrosyl)-L-valine." [PubMed:19321420, RESID:AA0490] tetrakis-L-glutamato bis-L-N1'-histidino lipid carboxylato manganese iron oxide ; MOD:01443 def: "A protein modification that effectively converts four L-glutamic acid residues and two L-histidine residues to tetrakis-L-glutamato bis-L-N1'-histidino lipid carboxylato manganese iron oxide." [PubMed:19321420, RESID:AA0491] L-3,3-dihydroxyoalanine (Cys) ; MOD:01444 def: "A protein modification that effectively converts an L-cysteine residue to L-3,3-dihydroxyoalanine." [PubMed:11435113, PubMed:17558559, RESID:AA0492#CYS] L-3,3-dihydroxyoalanine (Ser) ; MOD:01445 def: "A protein modification that effectively converts an L-serine residue to L-3,3-dihydroxyoalanine." [PubMed:11435113, PubMed:17558559, RESID:AA0492#SER] N-(dihydroxymethyl)-L-methionine (fMet) ; MOD:01446 def: "A protein modification that effectively converts an N-formyl-Lmethionine residue to N-(dihydroxymethyl)-L-methionine." [PubMed:12595263, PubMed:9159480, RESID:AA0493] N-(dihydroxymethyl)-L-methionine (Met) ; MOD:01447 def: "A protein modification that effectively converts an L-methionine residue to N-(dihydroxymethyl)-L-methionine (not known as a natural, post-translational modification process)." [PubMed:12595263, PubMed:9159480, RESID:AA0493] L-3,3-dihydroxyoalanine ; MOD:01448 def: "A protein modification that effectively converts a source amino acid residue to L-3,3-dihydroxyoalanine." [PubMed:11435113, PubMed:17558559, RESID:AA0492] L-3,3-dihydroxyoalanine (Oxoalanine) ; MOD:01449 def: "A protein modification that effectively converts an L-3-oxoalanine residue to L-3,3-dihydroxyoalanine." [PubMed:11435113, PubMed:17558559, PubMed:18688235] modified N-formyl-L-methionine residue ; MOD:01450 def: "A protein modification that modifies an N-formyl-L-methionine residue." [PubMed:18688235] O-phospho-L-serine arising from O-phosphopantetheine-L-serine after neutral loss of pantetheine ; MOD:01451 def: "A protein modification that converts an L-serine residue to O-phosphopantetheine-L-serine with secondary neutral loss of pantetheine resulting in O-phospho-L-serine." [PubMed:17042494, PubMed:18688235] O-phosphopantetheine-L-serine with neutral loss of pantetheine ; MOD:01452 def: "Covalent modification of a peptide or protein amino acid O-phosphopantetheine-L-serine with secondary neutral loss of pantetheine resulting in O-phospho-L-serine." [PubMed:17042494, PubMed:18688235] L-glutamic acid 5-methyl ester ; MOD:01453 def: "A protein modification that effectively converts a source amino acid residue to L-glutamate 5-methyl ester." [RESID:AA0072] N-(DNA-1',2'-dideoxyribos-1'-ylidene)-L-prolinium ; MOD:01454 def: "A protein modification that effectively crosslinks an N-terminal L-proline residue and a strand of DNA at the C-1 of a ribose, freeing the nucleotide base and forming N-(DNA-1',2'-dideoxyribos-1'-ylidene)-L-prolinium." [PubMed:10833024, PubMed:11847126, PubMed:9030608, RESID:AA0494] O-phosphorylated residue ; MOD:01455 def: "A protein modification that effectively replaces a residue hydroxyl or carboxyl hydrogen with a phosphono group (H2PO3 or 'phosphate')." [PubMed:18688235] N-phosphorylated residue ; MOD:01456 def: "A protein modification that effectively replaces a hydrogen atom of a residue amino or imino group with a phosphono group (H2PO3 or 'phosphate')." [PubMed:18688235] L-cysteine (Ser) ; MOD:01457 def: "A protein modification that effectively converts an L-serine residue to L-cysteine (not known as a natural, post-translational modification process)." [PubMed:1849824, PubMed:18688235] alpha-amino acetylated residue ; MOD:01458 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with an acetyl group." [OMSSA:10, UniMod:1#N-term] 4x(2)H labeled alpha-dimethylamino N-terminal residue ; MOD:01459 def: "A protein modification that effectively converts an N-terminal residue to an 4x(2)H labeled alpha-dimethylamino N-terminal residue." [OMSSA:190, PubMed:14670044, UniMod:199#N-term] alpha-amino methylated residue ; MOD:01460 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a methyl group." [PubMed:18688235] N-methylated alanine ; MOD:01461 def: "A protein modification that effectively replaces an L-alanine alpha amino hydrogen with a methyl group." [PubMed:18688235] N-methylated proline ; MOD:01462 def: "A protein modification that effectively replaces an L-proline alpha imino hydrogen with a methyl group." [PubMed:18688235] N-methylated methionine ; MOD:01463 def: "A protein modification that effectively replaces an L-methionine alpha amino hydrogen with a methyl group." [PubMed:18688235] protonated L-methionine (L-methioninium) residue ; MOD:01464 def: "A protein modification that effectively converts an L-methionine residue to an L-methioninium (protonated L-methionine)." [PubMed:18688235] N,N,N-trimethyl-L-methionine (from L-methioninium) ; MOD:01465 def: "A protein modification that effectively converts an L-methioninium (protonated L-methionine) residue to an N6,N6,N6-trimethyl-L-methionine." [PubMed:18688235] menadione quinone derivative - site C ; MOD:01466 def: "modification from UniMod Chemical derivative" [PubMed:15939799, UniMod:302#K] menadione quinone derivative - site K ; MOD:01467 def: "modification from UniMod Chemical derivative" [PubMed:15939799, UniMod:302#K] L-selenocysteinyl molybdenum bis(molybdopterin guanine dinucleotide) (Cys) ; MOD:01468 def: "A protein modification that effectively converts an L-cysteine residue to L-selenocysteinyl molybdenum bis(molybdopterin guanine dinucleotide) (not known as a natural, post-translational modification process)." [PubMed:14235557, PubMed:2211698, PubMed:8052647, PubMed:9036855, RESID:AA0248#CYS, UniMod:415] L-selenocysteinyl tungsten bis(molybdopterin guanine dinucleotide) (Cys) ; MOD:01469 def: "A protein modification that effectively converts an L-cysteine residue to L-selenocysteinyl tungsten bis(molybdopterin guanine dinucleotide) (not known as a natural, post-translational modification process)." [PubMed:11372198, PubMed:12220497, RESID:AA0376#CYS] (E)-dehydrobutyrine (Thr) ; MOD:01470 def: "A protein modification that effectively converts an L-threonine residue to (E)-dehydrobutyrine." [DeltaMass:0, PubMed:1547888, PubMed:20805503, PubMed:3769923, RESID:AA0547] (Z)-dehydrobutyrine (Thr) ; MOD:01471 def: "A protein modification that effectively converts an L-threonine residue to (Z)-dehydrobutyrine." [DeltaMass:0, PubMed:1547888, PubMed:3769923, RESID:AA0182] reduced residue ; MOD:01472 def: "A protein modification that effectively either adds neutral hydrogen atoms (proton and electron), or removes oxygen atoms from a residue with or without the addition of hydrogen atoms." [PubMed:18688235] hydrogenated residue ; MOD:01473 def: "A protein modification that effectively adds neutral hydrogen atoms (proton and electron) to a residue." [PubMed:18688235] O-[S-(carboxymethyl)phosphopantetheine]-L-serine ; MOD:01474 def: "A protein modification that effectively converts an L-serine residue to O-[S-(carboxymethyl)phosphopantetheine]-L-serine." [PubMed:18688235] O-[S-(carboxamidomethyl)phosphopantetheine]-L-serine ; MOD:01475 def: "A protein modification that effectively converts an L-serine residue to O-[S-(carboxamidomethyl)phosphopantetheine]-L-serine." [PubMed:18688235] 2'-fluoro-L-phenylalanine ; MOD:01476 def: "A protein modification that effectively converts an L-phenylalanine residue to an 2'-fluoro-L-fluorophenylalanine." [PubMed:18688235, PubMed:8172898] 3'-fluoro-L-phenylalanine ; MOD:01477 def: "A protein modification that effectively converts an L-phenylalanine residue to an 3'-fluoro-L-fluorophenylalanine." [PubMed:18688235, PubMed:8172898] 4'-fluoro-L-phenylalanine ; MOD:01478 def: "A protein modification that effectively converts an L-phenylalanine residue into an 4'-fluoro-L-fluorophenylalanine." [PubMed:18688235, PubMed:8172898] 4'-fluoro-L-tryptophan ; MOD:01479 def: "A protein modification that effectively converts an L-tryptophan residue into an 4'-fluoro-L-tryptophan." [PubMed:18688235, PubMed:8172898] 5'-fluoro-L-tryptophan ; MOD:01480 def: "A protein modification that effectively converts an L-tryptophan residue into an 5'-fluoro-L-tryptophan." [PubMed:18688235, PubMed:8172898] 6'-fluoro-L-tryptophan ; MOD:01481 def: "A protein modification that effectively converts an L-tryptophan residue into an 6'-fluoro-L-tryptophan." [PubMed:18688235, PubMed:8172898] calcium containing modified residue ; MOD:01482 def: "A protein modification that effectively substitutes a calcium atom or a cluster containing calcium for hydrogen atoms, or that coordinates a calcium ion." [PubMed:18688235] O-formylated residue ; MOD:01483 def: "A protein modification that effectively replaces a residue hydroxyl group with a formyloxy group." [PubMed:18688235] N6-(L-isoglutamyl)-L-lysine (Glu) ; MOD:01484 def: "A protein modification that effectively crosslinks an L-glutamic acid residue and an L-lysine residue by an isopeptide bond to form N6-(L-isoglutamyl)-L-lysine and the release of water." [ChEBI:21863, PubMed:19015515, RESID:AA0124#GLU] iTRAQ4plex-114 reporter+balance reagent acylated residue ; MOD:01485 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Applied Biosystems iTRAQ4plex-114 reporter+balance group." [UniMod:532] iTRAQ4plex-114 reporter+balance reagent acylated N-terminal ; MOD:01486 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Applied Biosystems iTRAQ4plex-114 reporter+balance group." [OMSSA:167, UniMod:532#N-term] iTRAQ4plex-114 reporter+balance reagent N6-acylated lysine ; MOD:01487 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Applied Biosystems iTRAQ4plex-114 reporter+balance group." [OMSSA:168, UniMod:532#K] iTRAQ4plex-114 reporter+balance reagent O4'-acylated tyrosine ; MOD:01488 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Applied Biosystems iTRAQ4plex-114 reporter+balance group." [OMSSA:169, UniMod:532#Y] iTRAQ4plex-114 reporter+balance reagent N'-acylated histidine ; MOD:01489 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Applied Biosystems iTRAQ4plex-114 reporter+balance group." [PubMed:18688235] iTRAQ4plex-114 reporter+balance reagent O3-acylated serine ; MOD:01490 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Applied Biosystems iTRAQ4plex-114 reporter+balance group." [PubMed:18688235] iTRAQ4plex-114 reporter+balance reagent O3-acylated threonine ; MOD:01491 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Applied Biosystems iTRAQ4plex-114 reporter+balance group." [PubMed:18688235] iTRAQ4plex-115 reporter+balance reagent acylated residue ; MOD:01492 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Applied Biosystems iTRAQ4plex-115 reporter+balance group." [UniMod:533] iTRAQ4plex-115 reporter+balance reagent acylated N-terminal ; MOD:01493 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Applied Biosystems iTRAQ4plex-115 reporter+balance group." [OMSSA:170, UniMod:533#N-term] iTRAQ4plex-115 reporter+balance reagent N6-acylated lysine ; MOD:01494 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Applied Biosystems iTRAQ4plex-115 reporter+balance group." [OMSSA:171, UniMod:533#K] iTRAQ4plex-115 reporter+balance reagent O4'-acylated tyrosine ; MOD:01495 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Applied Biosystems iTRAQ4plex-115 reporter+balance group." [OMSSA:172, UniMod:533#Y] iTRAQ4plex-115 reporter+balance reagent N'-acylated histidine ; MOD:01496 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Applied Biosystems iTRAQ4plex-115 reporter+balance group." [PubMed:18688235] iTRAQ4plex-115 reporter+balance reagent O3-acylated serine ; MOD:01497 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Applied Biosystems iTRAQ4plex-115 reporter+balance group." [PubMed:18688235] iTRAQ4plex-115 reporter+balance reagent O3-acylated threonine ; MOD:01498 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Applied Biosystems iTRAQ4plex-115 reporter+balance group." [PubMed:18688235] iTRAQ4plex-116 reporter+balance reagent acylated residue ; MOD:01499 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Applied Biosystems iTRAQ4plex-116 reporter+balance group." [UniMod:214] iTRAQ4plex-116 reporter+balance reagent acylated N-terminal ; MOD:01500 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Applied Biosystems iTRAQ4plex-116 reporter+balance group." [OMSSA:173, UniMod:214#N-term] iTRAQ4plex-116 reporter+balance reagent N6-acylated lysine ; MOD:01501 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Applied Biosystems iTRAQ4plex-116 reporter+balance group." [OMSSA:174, UniMod:214#K] iTRAQ4plex-116 reporter+balance reagent O4'-acylated tyrosine ; MOD:01502 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Applied Biosystems iTRAQ4plex-116 reporter+balance group." [OMSSA:175, UniMod:214#Y] iTRAQ4plex-116 reporter+balance reagent N'-acylated histidine ; MOD:01503 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Applied Biosystems iTRAQ4plex-116 reporter+balance group." [PubMed:18688235] iTRAQ4plex-116 reporter+balance reagent O3-acylated serine ; MOD:01504 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Applied Biosystems iTRAQ4plex-116 reporter+balance group." [PubMed:18688235] iTRAQ4plex-116 reporter+balance reagent O3-acylated threonine ; MOD:01505 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Applied Biosystems iTRAQ4plex-116 reporter+balance group." [PubMed:18688235] iTRAQ4plex-117, mTRAQ heavy, reporter+balance reagent acylated residue ; MOD:01506 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Applied Biosystems iTRAQ4plex-117 reporter+balance group." [UniMod:214, UniMod:889] iTRAQ4plex-117, mTRAQ heavy, reporter+balance reagent acylated N-terminal ; MOD:01507 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Applied Biosystems iTRAQ4plex-117 reporter+balance group." [OMSSA:176, OMSSA:211, UniMod:214#N-term, UniMod:889N-term] iTRAQ4plex-117, mTRAQ heavy, reporter+balance reagent N6-acylated lysine ; MOD:01508 def: "A protein modification that effectively replaces the N6-hydrogen atom of a lysine residue with the Applied Biosystems iTRAQ4plex-117 reporter+balance group." [OMSSA:177, OMSSA:212, UniMod:214#K, UniMod:889#K] iTRAQ4plex-117, mTRAQ heavy, reporter+balance reagent O4'-acylated tyrosine ; MOD:01509 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Applied Biosystems iTRAQ4plex-117 reporter+balance group." [OMSSA:178, OMSSA:213, UniMod:214#Y, UniMod:889#Y] iTRAQ4plex-117 reporter+balance reagent N'-acylated histidine ; MOD:01510 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Applied Biosystems iTRAQ4plex-117 reporter+balance group." [PubMed:18688235] iTRAQ4plex-117 reporter+balance reagent O3-acylated serine ; MOD:01511 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Applied Biosystems iTRAQ4plex-117 reporter+balance group." [PubMed:18688235] iTRAQ4plex-117 reporter+balance reagent O3-acylated threonine ; MOD:01512 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Applied Biosystems iTRAQ4plex-117 reporter+balance group." [PubMed:18688235] modifications with monoisotopic mass differences that are nominally equal at a resolution below 0.1 Da ; MOD:01513 def: "Modifications that have monoisotopic mass differences from their respective origins that are nominally equal (sometimes called isobaric) at a resolution below 0.1 Da." [PubMed:18688235] modifications with monoisotopic mass differences that are nominally equal at a resolution below 0.01 Da ; MOD:01514 def: "Modifications that have monoisotopic mass differences from their respective origins that are nominally equal (sometimes called isobaric) at a resolution below 0.01 Da." [PubMed:18688235] modifications with monoisotopic mass differences that are nominally equal at a resolution below 0.000001 Da ; MOD:01515 def: "Modifications that have monoisotopic mass differences from their respective origins that are nominally equal (sometimes called isobaric) at a resolution below 0.000001 Da." [PubMed:18688235] modifications with monoisotopic mass diferences that are nominally equal at 144.099-144.106 Da. ; MOD:01516 def: "Modifications that have monoisotopic mass differences from their respective origins of 144.099-144.106 Da." [PubMed:18688235] modifications with monoisotopic mass differences that are nominally equal at 144.102062 Da ; MOD:01517 def: "Modifications that have monoisotopic mass differences from their respective origins of 144.102062 Da." [PubMed:18688235] iTRAQ4plex reporter+balance reagent acylated residue ; MOD:01518 def: "A protein modification that effectively replaces a hydrogen atom of a residue with one of the Applied Biosystems iTRAQ4plex reagent reporter+balance groups." [UniMod:214] reporter fragment ; MOD:01519 def: "A distinct molecular entity produced from a protein or a protein modification as the result of a fragmentation process." [PubMed:18688235] modification reporter fragment ; MOD:01520 def: "A distinct molecular entity produced as the result of a fragmentation process performed on a particular modified residue." [PubMed:18688235] iTRAQ4plex reporter fragment ; MOD:01521 def: "A protein modification reporter fragment produced by an Applied Biosystems iTRAQ4plex reagent derivatized residue." [PubMed:18688235] iTRAQ4plex-114 reporter fragment ; MOD:01522 def: "The protein modification reporter fragment produced by an Applied Biosystems iTRAQ4plex 114 reagent derivatized residue." [PubMed:18688235] iTRAQ4plex-115 reporter fragment ; MOD:01523 def: "The protein modification reporter fragment produced by an Applied Biosystems iTRAQ4plex 115 reagent derivatized residue." [PubMed:18688235] iTRAQ4plex-116 reporter fragment ; MOD:01524 def: "The protein modification reporter fragment produced by an Applied Biosystems iTRAQ4plex 116 reagent derivatized residue." [PubMed:18688235] iTRAQ4plex-117, mTRAQ heavy, reporter fragment ; MOD:01525 def: "The protein modification reporter fragment produced by an Applied Biosystems iTRAQ4plex 117 reagent derivatized residue." [PubMed:18688235] iTRAQ8plex reporter+balance reagent acylated residue ; MOD:01526 def: "A protein modification that effectively replaces a hydrogen atom of a residue with one of the Applied Biosystems iTRAQ8plex reagent reporter+balance groups." [UniMod:730] residue reporter fragment ; MOD:01527 def: "A distinct molecular entity produced from a particular amino acid residue as the result of a fragmentation process." [PubMed:18688235] iTRAQ8plex-113 reporter+balance reagent acylated residue ; MOD:01528 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Applied Biosystems iTRAQ8plex-113 reporter+balance group." [UniMod:730] iTRAQ8plex-113 reporter+balance reagent acylated N-terminal ; MOD:01529 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Applied Biosystems iTRAQ8plex-113 reporter+balance group." [UniMod:730#N-term] iTRAQ8plex-113 reporter+balance reagent N6-acylated lysine ; MOD:01530 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Applied Biosystems iTRAQ8plex-113 reporter+balance group." [UniMod:730#K] iTRAQ8plex-113 reporter+balance reagent O4'-acylated tyrosine ; MOD:01531 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Applied Biosystems iTRAQ8plex-113 reporter+balance group." [UniMod:730#Y] iTRAQ8plex-113 reporter+balance reagent N'-acylated histidine ; MOD:01532 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Applied Biosystems iTRAQ8plex-113 reporter+balance group." [PubMed:18688235] iTRAQ8plex-113 reporter+balance reagent O3-acylated serine ; MOD:01533 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Applied Biosystems iTRAQ8plex-113 reporter+balance group." [PubMed:18688235] iTRAQ8plex-113 reporter+balance reagent O3-acylated threonine ; MOD:01534 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Applied Biosystems iTRAQ8plex-113 reporter+balance group." [PubMed:18688235] iTRAQ8plex-114 reporter+balance reagent acylated residue ; MOD:01535 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Applied Biosystems iTRAQ8plex-114 reporter+balance group." [UniMod:730] iTRAQ8plex-114 reporter+balance reagent acylated N-terminal ; MOD:01536 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Applied Biosystems iTRAQ8plex-114 reporter+balance group." [UniMod:730#N-term] iTRAQ8plex-114 reporter+balance reagent N6-acylated lysine ; MOD:01537 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Applied Biosystems iTRAQ8plex-114 reporter+balance group." [UniMod:730#K] iTRAQ8plex-114 reporter+balance reagent O4'-acylated tyrosine ; MOD:01538 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Applied Biosystems iTRAQ8plex-114 reporter+balance group." [UniMod:730#Y] iTRAQ8plex-114 reporter+balance reagent N'-acylated histidine ; MOD:01539 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Applied Biosystems iTRAQ8plex-114 reporter+balance group." [PubMed:18688235] iTRAQ8plex-114 reporter+balance reagent O3-acylated serine ; MOD:01540 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Applied Biosystems iTRAQ8plex-114 reporter+balance group." [PubMed:18688235] iTRAQ8plex-114 reporter+balance reagent O3-acylated threonine ; MOD:01541 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Applied Biosystems iTRAQ8plex-114 reporter+balance group." [PubMed:18688235] iTRAQ8plex-115 reporter+balance reagent acylated residue ; MOD:01542 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Applied Biosystems iTRAQ8plex-115 reporter+balance group." [UniMod:731] iTRAQ8plex-115 reporter+balance reagent acylated N-terminal ; MOD:01543 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Applied Biosystems iTRAQ8plex-115 reporter+balance group." [UniMod:731#N-term] iTRAQ8plex-115 reporter+balance reagent N6-acylated lysine ; MOD:01544 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Applied Biosystems iTRAQ8plex-115 reporter+balance group." [UniMod:731#K] iTRAQ8plex-115 reporter+balance reagent O4'-acylated tyrosine ; MOD:01545 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Applied Biosystems iTRAQ8plex-115 reporter+balance group." [UniMod:731#Y] iTRAQ8plex-115 reporter+balance reagent N'-derivatized histidine ; MOD:01546 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Applied Biosystems iTRAQ8plex-115 reporter+balance group." [PubMed:18688235] iTRAQ8plex-115 reporter+balance reagent O3-acylated serine ; MOD:01547 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Applied Biosystems iTRAQ8plex-115 reporter+balance group." [PubMed:18688235] iTRAQ8plex-115 reporter+balance reagent O3-acylated threonine ; MOD:01548 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Applied Biosystems iTRAQ8plex-115 reporter+balance group." [PubMed:18688235] iTRAQ8plex-116 reporter+balance reagent acylated residue ; MOD:01549 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Applied Biosystems iTRAQ8plex-116 reporter+balance group." [UniMod:730] iTRAQ8plex-116 reporter+balance reagent acylated N-terminal ; MOD:01550 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Applied Biosystems iTRAQ8plex-116 reporter+balance group." [UniMod:730#N-term] iTRAQ8plex-116 reporter+balance reagent N6-acylated lysine ; MOD:01551 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Applied Biosystems iTRAQ8plex-116 reporter+balance group." [UniMod:730#K] iTRAQ8plex-116 reporter+balance reagent O4'-acylated tyrosine ; MOD:01552 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Applied Biosystems iTRAQ8plex-116 reporter+balance group." [UniMod:730#Y] iTRAQ8plex-116 reporter+balance reagent N'-acylated histidine ; MOD:01553 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Applied Biosystems iTRAQ8plex-116 reporter+balance group." [PubMed:18688235] iTRAQ8plex-116 reporter+balance reagent O3-acylated serine ; MOD:01554 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Applied Biosystems iTRAQ8plex-116 reporter+balance group." [PubMed:18688235] iTRAQ8plex-116 reporter+balance reagent O3-acylated threonine ; MOD:01555 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Applied Biosystems iTRAQ8plex-116 reporter+balance group." [PubMed:18688235] iTRAQ8plex-117 reporter+balance reagent acylated residue ; MOD:01556 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Applied Biosystems iTRAQ8plex-117 reporter+balance group." [UniMod:730] iTRAQ8plex-117 reporter+balance reagent acylated N-terminal ; MOD:01557 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Applied Biosystems iTRAQ8plex-117 reporter+balance group." [UniMod:730#N-term] iTRAQ8plex-117 reporter+balance reagent N6-acylated lysine ; MOD:01558 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Applied Biosystems iTRAQ8plex-117 reporter+balance group." [UniMod:730#K] iTRAQ8plex-117 reporter+balance reagent O4'-acylated tyrosine ; MOD:01559 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Applied Biosystems iTRAQ8plex-117 reporter+balance group." [UniMod:730#Y] iTRAQ8plex-117 reporter+balance reagent N'-acylated histidine ; MOD:01560 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Applied Biosystems iTRAQ8plex-117 reporter+balance group." [PubMed:18688235] iTRAQ8plex-117 reporter+balance reagent O3-acylated serine ; MOD:01561 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Applied Biosystems iTRAQ8plex-117 reporter+balance group." [PubMed:18688235] iTRAQ8plex-117 reporter+balance reagent O3-acylated threonine ; MOD:01562 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Applied Biosystems iTRAQ8plex-117 reporter+balance group." [PubMed:18688235] iTRAQ8plex-118 reporter+balance reagent acylated residue ; MOD:01563 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Applied Biosystems iTRAQ8plex-118 reporter+balance group." [UniMod:731] iTRAQ8plex-118 reporter+balance reagent acylated N-terminal ; MOD:01564 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Applied Biosystems iTRAQ8plex-118 reporter+balance group." [UniMod:731#N-term] iTRAQ8plex-118 reporter+balance reagent N6-acylated lysine ; MOD:01565 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Applied Biosystems iTRAQ8plex-118 reporter+balance group." [UniMod:731#K] iTRAQ8plex-118 reporter+balance reagent O4'-acylated tyrosine ; MOD:01566 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Applied Biosystems iTRAQ8plex-118 reporter+balance group." [UniMod:731#Y] iTRAQ8plex-118 reporter+balance reagent N'-acylated histidine ; MOD:01567 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Applied Biosystems iTRAQ8plex-118 reporter+balance group." [PubMed:18688235] iTRAQ8plex-118 reporter+balance reagent O3-acylated serine ; MOD:01568 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Applied Biosystems iTRAQ8plex-118 reporter+balance group." [PubMed:18688235] iTRAQ8plex-118 reporter+balance reagent O3-acylated threonine ; MOD:01569 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Applied Biosystems iTRAQ8plex-118 reporter+balance group." [PubMed:18688235] iTRAQ8plex-119 reporter+balance reagent acylated residue ; MOD:01570 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Applied Biosystems iTRAQ8plex-119 reporter+balance group." [UniMod:731] iTRAQ8plex-119 reporter+balance reagent acylated N-terminal ; MOD:01571 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Applied Biosystems iTRAQ8plex-119 reporter+balance group." [UniMod:731#N-term] iTRAQ8plex-119 reporter+balance reagent N6-acylated lysine ; MOD:01572 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Applied Biosystems iTRAQ8plex-119 reporter+balance group." [UniMod:731#K] iTRAQ8plex-119 reporter+balance reagent O4'-acylated tyrosine ; MOD:01573 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Applied Biosystems iTRAQ8plex-119 reporter+balance group." [UniMod:731#Y] iTRAQ8plex-119 reporter+balance reagent N'-acylated histidine ; MOD:01574 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Applied Biosystems iTRAQ8plex-119 reporter+balance group." [PubMed:18688235] iTRAQ8plex-119 reporter+balance reagent O3-acylated serine ; MOD:01575 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Applied Biosystems iTRAQ8plex-119 reporter+balance group." [PubMed:18688235] iTRAQ8plex-119 reporter+balance reagent O3-acylated threonine ; MOD:01576 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Applied Biosystems iTRAQ8plex-119 reporter+balance group." [PubMed:18688235] iTRAQ8plex-121 reporter+balance reagent acylated residue ; MOD:01577 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Applied Biosystems iTRAQ8plex-121 reporter+balance group." [UniMod:731] iTRAQ8plex-121 reporter+balance reagent acylated N-terminal ; MOD:01578 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Applied Biosystems iTRAQ8plex-121 reporter+balance group." [UniMod:731#N-term] iTRAQ8plex-121 reporter+balance reagent N6-acylated lysine ; MOD:01579 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Applied Biosystems iTRAQ8plex-121 reporter+balance group." [UniMod:731#K] iTRAQ8plex-121 reporter+balance reagent O4'-acylated tyrosine ; MOD:01580 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Applied Biosystems iTRAQ8plex-121 reporter+balance group." [UniMod:731#Y] iTRAQ8plex-121 reporter+balance reagent N'-acylated histidine ; MOD:01581 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Applied Biosystems iTRAQ8plex-121 reporter+balance group." [PubMed:18688235] iTRAQ8plex-121 reporter+balance reagent O3-acylated serine ; MOD:01582 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Applied Biosystems iTRAQ8plex-121 reporter+balance group." [PubMed:18688235] iTRAQ8plex-121 reporter+balance reagent O3-acylated threonine ; MOD:01583 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Applied Biosystems iTRAQ8plex-121 reporter+balance group." [PubMed:18688235] modifications with monoisotopic mass differences that are nominally equal at 304.199039 Da ; MOD:01584 def: "Modifications that have monoisotopic mass differences from their respective origins of 304.199039 Da." [PubMed:18688235] O-glycyl-L-serine ; MOD:01585 def: "A protein modification that effectively crosslinks an L-serine residue and a glycine residue by an ester bond to form O-glycyl-L-serine." [PubMed:17502423, RESID:AA0495] O-glycyl-L-threonine ; MOD:01586 def: "A protein modification that effectively crosslinks an L-threonine residue and a glycine residue by an ester bond to form O-glycyl-L-threonine." [PubMed:17502423, RESID:AA0496] O-(2-aminoethylphosphoryl)-L-serine ; MOD:01587 def: "A protein modification that effectively converts an L-serine residue to O-(2-aminoethylphosphoryl)-L-serine." [PubMed:15249686, PubMed:16825186, PubMed:16949362, RESID:AA0497] O-cholinephosphoryl-L-serine ; MOD:01588 def: "A protein modification that effectively converts an L-serine residue to O-cholinephosphoryl-L-serine." [PubMed:15249686, PubMed:16825186, PubMed:16949362, RESID:AA0498] O-(2,4-diacetamido-2,4-dideoxyglucosyl)-L-serine ; MOD:01589 def: "A protein modification that effectively converts an L-serine residue to O-(2,4-diacetamido-2,4-dideoxyglucosyl)-L-serine." [PubMed:15249686, PubMed:16949362, RESID:AA0499] 3'-farnesyl-2',3'-dihydro-2',N2-cyclo-L-tryptophan ; MOD:01590 def: "A protein modification that effectively converts an L-tryptophan residue to 3'-farnesyl-2',3'-dihydro-2',N2-cyclo-L-tryptophan." [ChEBI:52950, PubMed:18323630, RESID:AA0500] modifications with monoisotopic mass differences that are nominally equal at 304.205359 Da ; MOD:01591 def: "Modifications that have monoisotopic mass differences from their respective origins of 304.205359 Da." [PubMed:18688235] modifications with monoisotopic mass differences that are nominally equal at 304.199-304.206 Da ; MOD:01592 def: "Modifications that have monoisotopic mass differences from their respective origins of 304.199-304.206 Da." [PubMed:18688235] iTRAQ8plex reporter fragment ; MOD:01593 def: "A protein modification reporter fragment produced by an Applied Biosystems iTRAQ8plex reagent derivatized residue." [PubMed:18688235] iTRAQ8plex-113 reporter fragment ; MOD:01594 def: "The protein modification reporter fragment produced by an Applied Biosystems iTRAQ8plex-113 reagent derivatized residue." [PubMed:18688235] iTRAQ8plex-114 reporter fragment ; MOD:01595 def: "The protein modification reporter fragment produced by an Applied Biosystems iTRAQ8plex-114 reagent derivatized residue." [PubMed:18688235] iTRAQ8plex-115 reporter fragment ; MOD:01596 def: "The protein modification reporter fragment produced by an Applied Biosystems iTRAQ8plex-115 reagent derivatized residue." [PubMed:18688235] iTRAQ8plex-116 reporter fragment ; MOD:01597 def: "The protein modification reporter fragment produced by an Applied Biosystems iTRAQ8plex-116 reagent derivatized residue." [PubMed:18688235] iTRAQ8plex-117 reporter fragment ; MOD:01598 def: "The protein modification reporter fragment produced by an Applied Biosystems iTRAQ8plex-117 reagent derivatized residue." [PubMed:18688235] iTRAQ8plex-118 reporter fragment ; MOD:01599 def: "The protein modification reporter fragment produced by an Applied Biosystems iTRAQ8plex-118 reagent derivatized residue." [PubMed:18688235] iTRAQ8plex-119 reporter fragment ; MOD:01600 def: "The protein modification reporter fragment produced by an Applied Biosystems iTRAQ8plex-119 reagent derivatized residue." [PubMed:18688235] iTRAQ8plex-121 reporter fragment ; MOD:01601 def: "The protein modification reporter fragment produced by an Applied Biosystems iTRAQ8plex-121 reagent derivatized residue." [PubMed:18688235] S-(L-lysyl)-L-methionine sulfilimine ; MOD:01602 def: "A protein modification that effectively converts an L-lysine residue, and an L-methionine residue to S-(L-lysyl)-L-methionine sulfilimine." [PubMed:12011424, PubMed:15951440, PubMed:19729652, RESID:AA0501] 2x(15)N labeled L-lysine ; MOD:01603 def: "A protein modification that effectively converts an L-lysine residue to 2x(15)N labeled L-lysine." [PubMed:18688235, URL:http\://www.sigmaaldrich.com/catalog/ProductDetail.do?N4=609021|ALDRICH&N5=SEARCH_CONCAT_PNO|BRAND_KEY&F=SPEC&lang=en_US0.000000E+000] 4x(15)N labeled L-arginine ; MOD:01604 def: "A protein modification that effectively converts an L-arginine residue to 4x(15)N labeled L-arginine." [PubMed:18688235, URL:http\://www.sigmaaldrich.com/catalog/ProductDetail.do?N4=600113|ALDRICH&N5=SEARCH_CONCAT_PNO|BRAND_KEY&F=SPEC&lang=en_US0.000000E+000] 5-glutamyl 2-aminoadipic acid ; MOD:01605 def: "A protein modification that effectively converts an L-glutamic acid residue to 5-glutamyl 2-aminoadipic acid." [PubMed:19620981, RESID:AA0502] 5-glutamyl 2-aminoadipic 6-phosphoric anhydride ; MOD:01606 def: "A protein modification that effectively converts an L-glutamic acid residue to 5-glutamyl 2-aminoadipic 6-phosphoric anhydride." [PubMed:19620981, RESID:AA0503] 5-glutamyl allysine ; MOD:01607 def: "A protein modification that effectively converts an L-glutamic acid residue to 5-glutamyl allysine." [PubMed:19620981, RESID:AA0504] N2-(L-isoglutamyl)-L-lysine ; MOD:01608 def: "A protein modification that effectively converts an L-glutamic acid residue to N2-(L-isoglutamyl)-L-lysine. This is not an isopeptide cross-link." [PubMed:19620981, RESID:AA0505] 7'-hydroxy-2'-alpha-mannosyl-L-tryptophan ; MOD:01609 def: "A protein modification that effectively converts an L-tryptophan residue to 7'-hydroxy-2'-alpha-mannosyl-L-tryptophan." [PubMed:19584055, RESID:AA0506] L-threonine methyl ester ; MOD:01610 def: "A protein modification that effectively converts an L-threonine residue to L-threonine methyl ester." [PubMed:19745839, RESID:AA0507] 6-(S-L-cysteinyl)-8alpha-(-3'-L-histidino)-FMN ; MOD:01611 def: "A protein modification that crosslinks a cysteine and a histidine residue by forming the adduct 6-(S-L-cysteinyl)-8alpha-(-3'-L-histidino)-FMN." [PubMed:17935335, RESID:AA0508] 3'-iodo-L-tyrosine ; MOD:01612 def: "A protein modification that effectively converts an L-tyrosine residue to 3'-iodo-L-tyrosine." [ChEBI:27847, PubMed:8995307, RESID:AA0509] 3',5'-diiodo-L-tyrosine ; MOD:01613 def: "A protein modification that effectively converts an L-tyrosine residue to 3',5'-diiodo-L-tyrosine." [ChEBI:15768, PubMed:8995307, RESID:AA0510] glycyl phospho-5'-adenosine ; MOD:01614 def: "A protein modification that effectively converts a glycine residue to glycyl phospho-5'-adenosine." [PubMed:16388576, PubMed:9632726, RESID:AA0511] glycyl cysteine dithioester ; MOD:01615 def: "A protein modification that effectively crosslinks an L-cysteine residue and a glycine residue by a dithioester bond to form glycyl cysteine dithioester." [PubMed:11438688, PubMed:16388576, RESID:AA0512] trithiocystine ; MOD:01616 def: "A protein modification that effectively cross-links two L-cysteine residues and adds three sulfur atoms to form trithiocystine." [PubMed:19438211, RESID:AA0513] O-(6-phosphomannosyl)-L-threonine ; MOD:01617 def: "A protein modification that effectively converts an L-threonine residue to O-(6-phosphomannosyl)-L-threonine." [PubMed:20044576, RESID:AA0514] L-alanyl-L-isoaspartyl cyclopeptide ; MOD:01618 def: "A protein modification that effectively converts an L-alaine residue and an L-asparagine residue to L-alanyl-L-isoaspartyl cyclopeptide." [PubMed:19928958, PubMed:3207697, RESID:AA0515] multisulfide crosslinked residues ; MOD:01619 def: "A protein modification that crosslinks two cysteine residues by formation of a chain of two or more bonded sulfur atoms." [PubMed:18688235] polysulfide crosslinked residues ; MOD:01620 def: "A protein modification that crosslinks two cysteine residues by formation of a chain of three or more bonded sulfur atoms." [PubMed:18688235] flavin crosslinked residues ; MOD:01621 def: "A protein modification that crosslinks two or more amino acid residues by forming an adduct with a compound containing a flavin group." [PubMed:18688235] monohydroxylated tryptophan ; MOD:01622 def: "A protein modification that effectively converts an L-tryptophan residue to one of several monohydroxylated tryptophan residues, including 3-hydroxy-L-tryptophan and 7'-hydroxy-L-tryptophan." [OMSSA:90, UniMod:35#W] 1-thioglycine (C-terminal) ; MOD:01623 def: "A protein modification that effectively converts a glycine residue to a C-terminal 1-thioglycine." [PubMed:11463785, PubMed:19145231, PubMed:9367957, RESID:AA0265#var] (2-aminosuccinimidyl)acetic acid (Asn) ; MOD:01624 def: "A protein modification that crosslinks an asparagine and the following glycine residue with the formation of (2-aminosuccinimidyl)acetic acid and the release of ammonia." [PubMed:10801322, PubMed:2015294, RESID:AA0441#ASN] 1-thioglycine ; MOD:01625 def: "A protein modification that effectively converts a glycine residue to 1-thioglycine." [PubMed:11463785, PubMed:9367957, RESID:AA0265] L-cystine ; MOD:01626 def: "A protein modification that forms L-cystine by forming a disulfide bond that either cross-links two peptidyl L-cysteine residues, or modifies a peptidyl cysteine with a free cysteine." [ChEBI:16283, PubMed:1988019, PubMed:2001356, PubMed:2076469, PubMed:3083866, PubMed:366603, PubMed:7918467, PubMed:8344916, RESID:AA0025] L-cysteinyl-L-selenocysteine ; MOD:01627 def: "A protein modification that forms L-cysteinyl-L-selenocysteine either by the natural process of cross-linking an L-cysteine residue and an L-selenocysteine residue, or by the hypothetical process of substituting a selenium for a sulfur atom in cystine." [PubMed:12911312, PubMed:18688235] (2-aminosuccinimidyl)acetic acid ; MOD:01628 def: "A protein modification that forms (2-aminosuccinimidyl)acetic acid by crosslinking either an aspartic acid residue or an asparagine residue with the following glycine residue." [PubMed:10801322, PubMed:18688235] cyclo[(prolylserin)-O-yl] cysteinate ; MOD:01629 def: "A protein modification that forms cyclo[(prolylserin)-O-yl] cysteinate by the natural process of cross-linking an L-cysteine residue an L-proline residue, and an L-serine residue, or by effectively modifying a cysteine residue." [PubMed:7961166, RESID:AA0489] N6-(L-isoglutamyl)-L-lysine ; MOD:01630 def: "A protein modification that effectively crosslinks either an L-glutamine residue or an L-glutamic acid residue with an L-lysine residue by an isopeptide bond to form N6-(L-isoglutamyl)-L-lysine ." [ChEBI:21863, DeltaMass:0, PubMed:2461365, PubMed:5637041, PubMed:5656070, PubMed:8598899, RESID:AA0124] L-alanine removal ; MOD:01631 def: "A protein modification that effectively removes or replaces an L-alanine." [PubMed:18688235] L-arginine removal ; MOD:01632 def: "A protein modification that effectively removes or replaces an L-arginine." [PubMed:18688235] L-asparagine removal ; MOD:01633 def: "A protein modification that effectively removes or replaces an L-asparagine." [PubMed:18688235] L-aspartic acid removal ; MOD:01634 def: "A protein modification that effectively removes or replaces an L-aspartic acid." [PubMed:18688235] L-cysteine removal ; MOD:01635 def: "A protein modification that effectively removes or replaces an L-cysteine." [PubMed:18688235] L-glutamic acid removal ; MOD:01636 def: "A protein modification that effectively removes or replaces an L-glutamic acid." [PubMed:18688235] L-glutamine removal ; MOD:01637 def: "A protein modification that effectively removes or replaces an L-glutamine." [PubMed:18688235] glycine removal ; MOD:01638 def: "A protein modification that effectively removes or replaces a glycine." [PubMed:18688235] L-histidine removal ; MOD:01639 def: "A protein modification that effectively removes or replaces an L-histidine." [PubMed:18688235] L-isoleucine removal ; MOD:01640 def: "A protein modification that effectively removes or replaces an L-isoleucine." [PubMed:18688235] L-leucine removal ; MOD:01641 def: "A protein modification that effectively removes or replaces an L-leucine." [PubMed:18688235] L-lysine removal ; MOD:01642 def: "A protein modification that effectively removes or replaces an L-lysine." [PubMed:18688235] L-methionine removal ; MOD:01643 def: "A protein modification that effectively removes or replaces an L-methionine." [OMSSA:9, PubMed:3327521, UniMod:765] L-phenylalanine removal ; MOD:01644 def: "A protein modification that effectively removes or replaces an L-phenylalanine." [PubMed:18688235] L-proline removal ; MOD:01645 def: "A protein modification that effectively removes or replaces an L-proline." [PubMed:18688235] L-serine removal ; MOD:01646 def: "A protein modification that effectively removes or replaces an L-serine." [PubMed:18688235] L-threonine removal ; MOD:01647 def: "A protein modification that effectively removes or replaces an L-threonine." [PubMed:18688235] L-tryptophan removal ; MOD:01648 def: "A protein modification that effectively removes or replaces an L-tryptophan." [PubMed:18688235] L-tyrosine removal ; MOD:01649 def: "A protein modification that effectively removes or replaces an L-tyrosine." [PubMed:18688235] L-valine removal ; MOD:01650 def: "A protein modification that effectively removes or replaces an L-valine." [PubMed:18688235] natural, standard, encoded residue removal ; MOD:01651 def: "A protein modification that effectively removes or replaces a natural, standard, encoded residue." [PubMed:18688235] sulfonyl halide reagent derivatized residue ; MOD:01652 def: "A protein modification that is produced by formation of an adduct with a sulfonyl halide compound used as a reagent." [PubMed:18688235] dansyl chloride derivatized residue ; MOD:01653 def: "A protein modification that is produced by formation of an adduct with 5-dimethylaminonaphthalene-1-sulfonyl chloride, dansyl chloride." [DeltaMass:0, UniMod:139] N6-Dansyl derivatized lysine ; MOD:01654 def: "A protein modification that is produced by reaction with 5-dimethylaminonaphthalene-1-sulfonyl chloride, dansyl chloride, to form N6-Dansyl-lysine." [UniMod:139#K] alpha-amino-Dansyl derivatized residue ; MOD:01655 def: "A protein modification that is produced by reaction with 5-dimethylaminonaphthalene-1-sulfonyl chloride, dansyl chloride, to form an alpha-amino-Dansyl-derivatized residue." [UniMod:139#N-term] Dabsyl chloride derivatized residue ; MOD:01656 def: "A protein modification that is produced by formation of an adduct with 4-(4-dimethylaminophenylazo)benzenesulfonyl chloride, Dabsyl chloride." [PubMed:18688235] N6-Dabsyl derivatized lysine ; MOD:01657 def: "A protein modification that is produced by reaction with 4-(4-dimethylaminophenylazo)benzenesulfonyl chloride, dabsyl chloride, to form N6-Dabsyl-lysine." [PubMed:18688235] alpha-amino-Dabsyl derivatized residue ; MOD:01658 def: "A protein modification that is produced by reaction with 4-(4-dimethylaminophenylazo)benzenesulfonyl chloride, dabsyl chloride, to form an alpha-amino-Dabsyl-derivatized residue." [PubMed:18688235] Uniblue A derivatized residue ; MOD:01659 def: "A protein modification that is produced by formation of an adduct with 1-amino-4-{[3-(ethenylsulfonyl)phenyl]amino}-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate, Uniblue A." [PubMed:18688235] Uniblue A derivatized cysteine ; MOD:01660 def: "A protein modification that is produced by reaction with 1-amino-4-{[3-(ethenylsulfonyl)phenyl]amino}-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate, Uniblue A, to form Uniblue A cysteine adduct." [PubMed:18688235] pyruvic acid (Tyr) ; MOD:01661 def: "A protein modification that effectively converts an L-tyrosine residue to pyruvic acid." [PubMed:10085076, PubMed:3042771, PubMed:500639, PubMed:8464063, RESID:AA0127#TYR] N5-(ADP-ribosyl)-L-glutamine ; MOD:01662 def: "A protein modification that effectively converts an L-glutamine residue to N5-(ADP-ribosyl)-L-glutamine." [PubMed:20185726, RESID:AA0518] O-(ADP-ribosyl)-L-threonine ; MOD:01663 def: "A protein modification that effectively converts an L-threonine residue to O-(ADP-ribosyl)-L-threonine." [PubMed:20185726, RESID:AA0519] 7'-hydroxy-L-tryptophan ; MOD:01664 def: "A protein modification that effectively converts an L-tryptophan residue to a 7'-hydroxy-L-tryptophan." [PubMed:20223990, RESID:AA0520] N-(DNA-1',2'-dideoxyribos-1'-ylidene)-L-valine ; MOD:01665 def: "A protein modification that effectively crosslinks an N-terminal L-valine residue and a strand of DNA at the C-1 of a ribose, freeing the nucleotide base and forming N-(DNA-1',2'-dideoxyribos-1'-ylidene)-L-valine." [PubMed:20185759, RESID:AA0521] epicocconone derivatized residue ; MOD:01666 def: "A protein modification that is produced by formation of an adduct with epicocconone." [PubMed:18688235] N6-epicoccononyl lysine adduct ; MOD:01667 def: "A protein modification that is produced by formation of an adduct with epicocconone." [PubMed:18688235] O4-(8alpha-FAD)-L-aspartate ; MOD:01668 def: "A protein modification that effectively converts an L-aspartic acid residue to O4-(8alpha-FAD)-L-aspartate." [PubMed:20080101, RESID:AA0522] trimethyl-L-arginine ; MOD:01669 def: "A protein modification that effectively converts an L-arginine residue to N(omega),N(omega),N'(omega)-trimethyl-L-arginine." [OMSSA:117, PubMed:11704273, PubMed:602668, RESID:AA0523, UniMod:37#R] N6-chloro-L-lysine ; MOD:01670 def: "A protein modification that effectively converts an L-lysine residue to N6-methyl-L-lysine." [PubMed:16091367, PubMed:16195462, PubMed:17260957, RESID:AA0524] O-(L-isoaspartyl)-L-threonine (active site intermediate) ; MOD:01671 def: "A protein modification that effectively converts an L-threonine residue to O-(L-isoaspartyl)-L-threonine, using free L-asparagine and releasing ammonia." [PubMed:8706862, RESID:AA0525#THR] halogenated lysine ; MOD:01672 def: "A protein modification that effectively substitutes a hydrogen atom of an L-lysine residue with a halogen atom." [PubMed:18688235] N-acetylaminohexosylated residue ; MOD:01673 def: "A protein modification that effectively replaces a hydrogen atom with an N-acetylaminohexose group through a glycosidic bond." [UniMod:43] N4-(N-acetylamino)hexosyl-L-asparagine ; MOD:01674 def: "A protein modification that effectively converts an L-asparagine residue to N4-(N-acetaminohexosyl)-L-asparagine." [OMSSA:182, UniMod:43#N] O-(N-acetylamino)hexosyl-L-serine ; MOD:01675 def: "A protein modification that effectively converts an L-serine residue to O3-(N-acetylaminohexosyl)-L-serine." [OMSSA:184, UniMod:43#S] O-(N-acetylamino)hexosyl-L-threonine ; MOD:01676 def: "A protein modification that effectively converts an L-threonine residue to O3-(N-acetylaminohexosyl)-L-threonine." [OMSSA:185, UniMod:43#T] O4-(N-acetylamino)hexosyl-L-hydroxyproline ; MOD:01677 def: "A protein modification that effectively converts an L-proline residue to O4-(N-acetylamino)hexosyl-L-hydroxyproline." [PubMed:18688235] N6-carbamoyl-L-lysine ; MOD:01678 def: "A protein modification that effectively coverts L-lysine to N6-carbamoyl-L-lysine." [DeltaMass:56, OMSSA:31, PubMed:10978403, PubMed:12203680, UniMod:5#K] alpha-aminocarbamoylated residue ; MOD:01679 def: "A protein modification that effectively replaces a residue alpha amino or imino hydrogen with a carbamoyl group." [DeltaMass:56, OMSSA:32, PubMed:10978403, PubMed:12203680, UniMod:5#N-term] alpha-amino monomethylated residue ; MOD:01680 def: "A protein modification that effectively replaces one residue alpha amino or imino hydrogen with one methyl group." [OMSSA:11, OMSSA:76, UniMod:34#N-term] monomethylated L-aspartic acid ; MOD:01681 def: "A protein modification that effectively replaces one hydrogen atom of an L-aspartic acid residue with one methyl group." [OMSSA:16, UniMod:34#D] monomethylated L-cysteine ; MOD:01682 def: "A protein modification that effectively replaces one hydrogen atom of an L-cysteine residue with one methyl group." [OMSSA:73, UniMod:34#C] monomethylated L-lysine ; MOD:01683 def: "A protein modification that effectively replaces one hydrogen atom of an L-lysine residue with one methyl group." [OMSSA:0] palmitoylated-L-cysteine ; MOD:01684 def: "A protein modification that effectively converts an L-cysteine residue to a palmitoylated-L-cysteine, such as N-palmitoyl-L-cysteine or S-palmitoyl-L-cysteine." [OMSSA:92, UniMod:47] alpha-amino palmitoylated residue ; MOD:01685 def: "A protein modification that effectively replaces a residue alpha-amino group with a alpha-palmitoylamino group." [UniMod:47#N-term] alpha-amino dimethylated residue ; MOD:01686 def: "A protein modification that effectively replaces two alpha amino hydrogen atoms with two methyl group." [OMSSA:38, UniMod:36#N-term] alpha-amino trimethylated residue ; MOD:01687 def: "A protein modification that effectively replaces an alpha-aminium group with a trimethylaminium group." [OMSSA:12, UniMod:37#N-term] 3-hydroxy-L-asparagine ; MOD:01688 def: "A protein modification that effectively converts an L-asparagine residue to one of the diastereomeric 3-hydroxy-L-asparagine residues." [OMSSA:61, UniMod:35#N] alpha-carboxyl methylated residue ; MOD:01689 def: "A protein modification that effectively converts a carboxyl-terminal residue to an alpha-carboxyl (1-carboxyl) methyl ester." [OMSSA:18, OMSSA:68, UniMod:34#C-term] N-[(12R)-12-hydroxymyristoyl]-L-cysteine ; MOD:01690 def: "A protein modification that effectively converts an L-cysteine residue to N-[(12R)-12-hydroxymyristoyl]-L-cysteine." [RESID:AA0516] N-(12-ketomyristoyl)-L-cysteine ; MOD:01691 def: "A protein modification that effectively converts an L-cysteine residue to N-(12-ketomyristoyl)-L-cysteine." [PubMed:19053188, RESID:AA0517] glutamyl semialdehyde (Glu) ; MOD:01692 def: "A protein modification that effectively converts an L-glutamic acid residue to L-glutamyl semialdehyde." [PubMed:18688235, PubMed:743268] alpha-amino pyridylacetylated residue ; MOD:01693 def: "A protein modification that effectively replaces a residue alpha amino or imino hydrogen with a (pyrid-3-yl)acetyl group." [OMSSA:107, PubMed:9276974, UniMod:25#N-term] S-(coelenterazin-3a-yl)-L-cysteine ; MOD:01694 def: "A protein modification that effectively results from forming an adduct between an L-cysteine residue and the bioluminescent compound didehydrocoelenterazine to form S-(coelenterazin-3a-yl)-L-cysteine." [ChEBI:2311, PubMed:18997450, RESID:AA0526] alpha-amino 3-(carboxamidomethylthio)propanoylated residue ; MOD:01695 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with an 3-(carboxamidomethylthio)propanoyl group." [PubMed:15121203, UniMod:293#N-term] alpha-amino acylated residue ; MOD:01696 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with an acyl group." [PubMed:18688235] alpha-amino 4-(2-aminoethyl)benzenesulfonylated residue ; MOD:01697 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with an 4-(2-aminoethyl)benzenesulfonyl group." [DeltaMass:235, PubMed:8597590, UniMod:276#N-term] alpha-amino trimethylated protonated-residue ; MOD:01698 def: "A protein modification that effectively replaces an amino group with a trimethylaminium group." [PubMed:18688235] protonated residue ; MOD:01699 def: "A protein modification that effectively adds a hydrogen cation, a proton, forming a cationic residue." [PubMed:18688235] alpha-amino protonated residue ; MOD:01700 def: "A protein modification that effectively adds a proton to a residue alpha-amnino or alpha-imino group forming an alpha-aminium or alpha-iminium group, respectively." [PubMed:18688235] deprotonated residue ; MOD:01701 def: "A protein modification that effectively removes a hydrogen cation, a proton, forming an anionic residue." [PubMed:18688235] alpha-carboxyl deprotonated residue ; MOD:01702 def: "A protein modification that effectively removes a proton from a residue 1-carboxyl group (referred to as the alpha-carboxyl), forming a carboxylate anion." [PubMed:18688235] dehydrobutyrine ; MOD:01703 def: "A protein modification that effectively converts a source amino acid residue to dehydrobutyrine." [PubMed:18688235] dehydrobutyrine (Met) ; MOD:01704 def: "A protein modification that effectively converts an L-methionine residue to dehydrobutyrine, by neutral loss of methyl sulfide." [PubMed:18688235] isotope tagged reagent acylated residue ; MOD:01705 def: "A protein modification that effectively replaces a residue hydrogen with an isotope tagged reagent acyl group." [PubMed:18688235] isotope tagged reagent N-acylated residue ; MOD:01706 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with an isotope tagged reagent acyl group." [PubMed:18688235] isotope tagged reagent O-acylated residue ; MOD:01707 def: "A protein modification that effectively replaces a residue hydroxyl group with an isotope tagged reagent acyloxy group." [PubMed:18688235] isotope tagged reagent alpha-amino acylated residue ; MOD:01708 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with an isotope tagged reagent acyl group." [PubMed:18688235] iTRAQ4plex reporter+balance reagent N-acylated residue ; MOD:01709 def: "A protein modification that effectively replaces a residue amino- or imino-hydrogen with one of the Applied Biosystems iTRAQ4plex reagent reporter+balance groups." [PubMed:18688235] iTRAQ8plex reporter+balance reagent N-acylated residue ; MOD:01710 def: "A protein modification that effectively replaces a residue amino- or imino-hydrogen with one of the Applied Biosystems iTRAQ8plex reagent reporter+balance groups." [PubMed:18688235] iTRAQ4plex reporter+balance reagent acylated N-terminal ; MOD:01711 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with one of the Applied Biosystems iTRAQ4plex reagent reporter+balance groups." [UniMod:214#N-term] iTRAQ8plex reporter+balance reagent acylated N-terminal ; MOD:01712 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with one of the Applied Biosystems iTRAQ8plex reagent reporter+balance groups." [UniMod:214#N-term] iTRAQ4plex reporter+balance reagent O-acylated residue ; MOD:01713 def: "A protein modification that effectively replaces a residue hydroxyl with one of the Applied Biosystems iTRAQ4plex reagent reporter+balance acyloxy groups." [PubMed:18688235] iTRAQ8plex reporter+balance reagent O-acylated residue ; MOD:01714 def: "A protein modification that effectively replaces a residue hydroxyl with one of the Applied Biosystems iTRAQ8plex reagent reporter+balance acyloxy groups." [PubMed:18688235] TMT6plex reporter+balance reagent acylated residue ; MOD:01715 def: "A protein modification that effectively replaces a hydrogen atom of a residue with a Proteome Sciences TMT6plex reporter+balance group." [UniMod:214] TMT6plex reporter fragment ; MOD:01716 def: "The protein modification reporter fragment produced by an Proteome Sciences TMT6plex-126 reagent acylated residue." [PubMed:18688235] TMT6plex reporter+balance reagent N-acylated residue ; MOD:01717 def: "A protein modification that effectively replaces a residue amino- or imino-hydrogen with a Proteome Sciences TMT6plex reporter+balance group." [PubMed:18688235] TMT6plex reporter+balance reagent acylated N-terminal ; MOD:01718 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a Proteome Sciences TMT6plex reporter+balance group." [UniMod:214#N-term] TMT6plex reporter+balance reagent O-acylated residue ; MOD:01719 def: "A protein modification that effectively replaces a residue hydroxyl with one of the Proteome Sciences TMT6plex reagent reporter+balance acyloxy groups." [PubMed:18688235] TMT6plex-126 reporter+balance reagent acylated residue ; MOD:01720 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Proteome Sciences TMT6plex-126 reporter+balance group." [UniMod:737] TMT6plex-126 reporter+balance reagent acylated N-terminal ; MOD:01721 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Proteome Sciences TMT6plex-126 reporter+balance group." [UniMod:737#N-term] TMT6plex-126 reporter+balance reagent N6-acylated lysine ; MOD:01722 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Proteome Sciences TMT6plex-126 reporter+balance group." [UniMod:737#K] TMT6plex-126 reporter+balance reagent O4'-acylated tyrosine ; MOD:01723 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Proteome Sciences TMT6plex-126 reporter+balance group." [UniMod:737#Y] TMT6plex-126 reporter+balance reagent N'-acylated histidine ; MOD:01724 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Proteome Sciences TMT6plex-126 reporter+balance group." [PubMed:18688235] TMT6plex-126 reporter+balance reagent O3-acylated serine ; MOD:01725 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Proteome Sciences TMT6plex-126 reporter+balance group." [PubMed:18688235] TMT6plex-126 reporter+balance reagent O3-acylated threonine ; MOD:01726 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Proteome Sciences TMT6plex-126 reporter+balance group." [PubMed:18688235] TMT6plex-126 reporter fragment ; MOD:01727 def: "The protein modification reporter fragment produced by an Proteome Sciences TMT6plex-126 reagent acylated residue." [PubMed:18688235] TMT6plex-127 reporter+balance reagent acylated residue ; MOD:01728 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Proteome Sciences TMT6plex-127 reporter+balance group." [UniMod:737] TMT6plex-127 reporter+balance reagent acylated N-terminal ; MOD:01729 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Proteome Sciences TMT6plex-127 reporter+balance group." [UniMod:737#N-term] TMT6plex-127 reporter+balance reagent N6-acylated lysine ; MOD:01730 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Proteome Sciences TMT6plex-127 reporter+balance group." [UniMod:737#K] TMT6plex-127 reporter+balance reagent O4'-acylated tyrosine ; MOD:01731 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Proteome Sciences TMT6plex-127 reporter+balance group." [UniMod:737#Y] TMT6plex-127 reporter+balance reagent N'-acylated histidine ; MOD:01732 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Proteome Sciences TMT6plex-127 reporter+balance group." [PubMed:18688235] TMT6plex-127 reporter+balance reagent O3-acylated serine ; MOD:01733 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Proteome Sciences TMT6plex-127 reporter+balance group." [PubMed:18688235] TMT6plex-127 reporter+balance reagent O3-acylated threonine ; MOD:01734 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Proteome Sciences TMT6plex-127 reporter+balance group." [PubMed:18688235] TMT6plex-127 reporter fragment ; MOD:01735 def: "The protein modification reporter fragment produced by an Proteome Sciences TMT6plex-127 reagent acylated residue." [PubMed:18688235] TMT6plex-128 reporter+balance reagent acylated residue ; MOD:01736 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Proteome Sciences TMT6plex-128 reporter+balance group." [UniMod:737] TMT6plex-128 reporter+balance reagent acylated N-terminal ; MOD:01737 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Proteome Sciences TMT6plex-128 reporter+balance group." [UniMod:737#N-term] TMT6plex-128 reporter+balance reagent N6-acylated lysine ; MOD:01738 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Proteome Sciences TMT6plex-128 reporter+balance group." [UniMod:737#K] TMT6plex-128 reporter+balance reagent O4'-acylated tyrosine ; MOD:01739 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Proteome Sciences TMT6plex-128 reporter+balance group." [UniMod:737#Y] TMT6plex-128 reporter+balance reagent N'-acylated histidine ; MOD:01740 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Proteome Sciences TMT6plex-128 reporter+balance group." [PubMed:18688235] TMT6plex-128 reporter+balance reagent O3-acylated serine ; MOD:01741 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Proteome Sciences TMT6plex-128 reporter+balance group." [PubMed:18688235] TMT6plex-128 reporter+balance reagent O3-acylated threonine ; MOD:01742 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Proteome Sciences TMT6plex-128 reporter+balance group." [PubMed:18688235] TMT6plex-128 reporter fragment ; MOD:01743 def: "The protein modification reporter fragment produced by an Proteome Sciences TMT6plex-128 reagent acylated residue." [PubMed:18688235] TMT6plex-129 reporter+balance reagent acylated residue ; MOD:01744 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Proteome Sciences TMT6plex-129 reporter+balance group." [UniMod:737] TMT6plex-129 reporter+balance reagent acylated N-terminal ; MOD:01745 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Proteome Sciences TMT6plex-129 reporter+balance group." [UniMod:737#N-term] TMT6plex-129 reporter+balance reagent N6-acylated lysine ; MOD:01746 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Proteome Sciences TMT6plex-129 reporter+balance group." [UniMod:737#K] TMT6plex-129 reporter+balance reagent O4'-acylated tyrosine ; MOD:01747 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Proteome Sciences TMT6plex-129 reporter+balance group." [UniMod:737#Y] TMT6plex-129 reporter+balance reagent N'-acylated histidine ; MOD:01748 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Proteome Sciences TMT6plex-129 reporter+balance group." [PubMed:18688235] TMT6plex-129 reporter+balance reagent O3-acylated serine ; MOD:01749 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Proteome Sciences TMT6plex-129 reporter+balance group." [PubMed:18688235] TMT6plex-129 reporter+balance reagent O3-acylated threonine ; MOD:01750 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Proteome Sciences TMT6plex-129 reporter+balance group." [PubMed:18688235] TMT6plex-129 reporter fragment ; MOD:01751 def: "The protein modification reporter fragment produced by an Proteome Sciences TMT6plex-129 reagent acylated residue." [PubMed:18688235] TMT6plex-130 reporter+balance reagent acylated residue ; MOD:01752 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Proteome Sciences TMT6plex-130 reporter+balance group." [UniMod:737] TMT6plex-130 reporter+balance reagent acylated N-terminal ; MOD:01753 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Proteome Sciences TMT6plex-130 reporter+balance group." [UniMod:737#N-term] TMT6plex-130 reporter+balance reagent N6-acylated lysine ; MOD:01754 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Proteome Sciences TMT6plex-130 reporter+balance group." [UniMod:737#K] TMT6plex-130 reporter+balance reagent O4'-acylated tyrosine ; MOD:01755 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Proteome Sciences TMT6plex-130 reporter+balance group." [UniMod:737#Y] TMT6plex-130 reporter+balance reagent N'-acylated histidine ; MOD:01756 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Proteome Sciences TMT6plex-130 reporter+balance group." [PubMed:18688235] TMT6plex-130 reporter+balance reagent O3-acylated serine ; MOD:01757 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Proteome Sciences TMT6plex-130 reporter+balance group." [PubMed:18688235] TMT6plex-130 reporter+balance reagent O3-acylated threonine ; MOD:01758 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Proteome Sciences TMT6plex-130 reporter+balance group." [PubMed:18688235] TMT6plex-130 reporter fragment ; MOD:01759 def: "The protein modification reporter fragment produced by an Proteome Sciences TMT6plex-130 reagent acylated residue." [PubMed:18688235] TMT6plex-131 reporter+balance reagent acylated residue ; MOD:01760 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Proteome Sciences TMT6plex-131 reporter+balance group." [UniMod:737] TMT6plex-131 reporter+balance reagent acylated N-terminal ; MOD:01761 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Proteome Sciences TMT6plex-131 reporter+balance group." [UniMod:737#N-term] TMT6plex-131 reporter+balance reagent N6-acylated lysine ; MOD:01762 def: "A protein modification that effectively replaces the N6'-hydrogen atom of a lysine residue with the Proteome Sciences TMT6plex-131 reporter+balance group." [UniMod:737#K] TMT6plex-131 reporter+balance reagent O4'-acylated tyrosine ; MOD:01763 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Proteome Sciences TMT6plex-131 reporter+balance group." [UniMod:737#Y] TMT6plex-131 reporter+balance reagent N'-acylated histidine ; MOD:01764 def: "A protein modification that effectively replaces an N'-hydrogen atom of a histidine residue with the Proteome Sciences TMT6plex-131 reporter+balance group." [PubMed:18688235] TMT6plex-131 reporter+balance reagent O3-acylated serine ; MOD:01765 def: "A protein modification that effectively replaces an O3-hydrogen atom of a serine residue with the Proteome Sciences TMT6plex-131 reporter+balance group." [PubMed:18688235] TMT6plex-131 reporter+balance reagent O3-acylated threonine ; MOD:01766 def: "A protein modification that effectively replaces an O3-hydrogen atom of a threonine residue with the Proteome Sciences TMT6plex-131 reporter+balance group." [PubMed:18688235] TMT6plex-131 reporter fragment ; MOD:01767 def: "The protein modification reporter fragment produced by an Proteome Sciences TMT6plex-131 reagent acylated residue." [PubMed:18688235] O-palmitoleylated residue ; MOD:01768 def: "A protein modification that effectively replaces a residue hydroxyl group with a palmitoleyloxy group." [PubMed:18688235] O-palmitoleyl-L-threonine ; MOD:01769 def: "A protein modification that effectively converts an L-threonine residue to O-palmitoleyl-L-threonine." [OMSSA:188, PubMed:6642431, PubMed:8413602, RESID:AA0079#var, UniMod:431#T] O-palmitoyl-L-threonine amide ; MOD:01770 def: "A protein modification that effectively converts an L-threonine residue to O-palmitoyl-L-threonine amide." [PubMed:8413602, RESID:AA0079#var, RESID:AA0097#var] farnesyl reporter fragment ; MOD:01771 def: "The farnesyl cation protein modification reporter fragment produced by fragmentation of some farnesyl modified residues." [PubMed:15609361, PubMed:18688235] palmityl reporter fragment ; MOD:01772 def: "The palmityl cation protein modification reporter fragment produced by fragmentation of some palmitoyl modified residues." [PubMed:18688235, PubMed:8413602] N6,N6,N6-trimethyl-L-lysine with neutral loss of trimethylamine ; MOD:01773 def: "Covalent modification of a trimethyllysine residue with secondary loss of a neutral trimethylamine molecular fragment." [PubMed:17205979, PubMed:18688235] N6-octanoyl-L-lysine ; MOD:01774 def: "A protein modification that effectively converts an L-lysine residue to N6-octanoyl-L-lysine." [PubMed:12591875, PubMed:2215217, RESID:AA0527] 5-glutamyl serotonin ; MOD:01775 def: "A protein modification that effectively converts an L-glutamine residue to 5-glutamyl serotonin." [PubMed:11805836, PubMed:14697203, RESID:AA0528] S-methylthiocarbonylaminoethylcysteine (Cys) ; MOD:01776 def: "A protein modification that effectively converts an L-cysteine residue to S-methylthiocarbonylaminoethylcysteine." [PubMed:18688235, PubMed:20608637] S-(glycyl)-L-cysteine (Gly) ; MOD:01777 def: "A protein modification that effectively converts a C-terminal glycine residue to S-(glycyl)-L-cysteine by forming a thioester bond with a free L-cysteine." [ChEBI:22050, PubMed:17726030, PubMed:18359941, PubMed:18771296, PubMed:18799456, PubMed:18842002, PubMed:3306404, RESID:AA0206] N-(glycyl)-L-cysteine ; MOD:01778 def: "A protein modification that effectively converts a C-terminal glycine residue to N-(glycyl)-L-cysteine by forming a peptide bond with a free L-cysteine." [PubMed:18771296, PubMed:18799456, PubMed:18842002, RESID:AA0529] N6-(L-lysyl)-L-lysine ; MOD:01779 def: "A protein modification that effectively converts an L-lysine residue to N6-(L-lysyl)-L-lysine by formation of an isopeptide bond between the carboxyl group of a free lysine and the N6-amino group of the peptidyl L-lysine." [PubMed:18201202, PubMed:20729861, RESID:AA0530] N6-(beta-lysyl)-L-5-hydroxylysine ; MOD:01780 def: "A protein modification that effectively converts an L-lysine residue to N6-(beta-lysyl)-L-5-hydroxylysine by formation of an isopeptide bond between the carboxyl group of a free beta-lysine and the N6-amino group of a peptidyl L-lysine." [PubMed:18201202, PubMed:20729861, RESID:AA0531] N6-butanoyl-L-lysine ; MOD:01781 def: "A protein modification that effectively converts an L-lysine residue to N6-butanoyl-L-lysine." [PubMed:17267393, PubMed:20715035, RESID:AA0532, UniMod:1289] N-methyl-L-serine ; MOD:01782 def: "A protein modification that effectively converts an L-serine residue to N-methyl-L-serine." [PubMed:20668449, RESID:AA0533] N,N-dimethyl-L-serine ; MOD:01783 def: "A protein modification that effectively converts an L-serine residue to N,N-dimethyl-L-serine." [PubMed:20668449, RESID:AA0534] N,N,N-trimethyl-L-serine ; MOD:01784 def: "A protein modification that effectively converts an L-serine residue to N,N,N-trimethyl-L-serine." [PubMed:20668449, PubMed:3979397, RESID:AA0535] O-(L-isoglutamyl)-L-threonine (active site intermediate) ; MOD:01785 def: "A protein modification that effectively converts an L-threonine residue to O-(L-isoglutamyl)-L-threonine, using free L-glutamine and releasing ammonia." [PubMed:8706862, RESID:AA0536#THR] 3'-nitro-L-tyrosine ; MOD:01786 def: "A protein modification that effectively converts an L-tyrosine residue to 3'-nitro-L-tyrosine." [ChEBI:44454, PubMed:16944230, PubMed:5339594, RESID:AA0537] 5'-(L-tyros-5'-yl)amino-L-tyrosine ; MOD:01787 def: "A protein modification that effectively cross-links two L-tyrosine residues through their 5' positions by amine nitrogen to form 5'-(L-tyros-5'-yl)amino-L-tyrosine." [PubMed:18781570, RESID:AA0459] histidine immonium ion ; MOD:01788 def: "A protein modification that effectively converts an N-terminal L-histidine residue to histidine immonium ion." [PubMed:17074506, PubMed:18688235] phenylalanine immonium ion ; MOD:01789 def: "A protein modification that effectively converts an N-terminal L-phenylalanine residue to phenylalanine immonium ion." [PubMed:17074506, PubMed:18688235] tyrosine immonium ion ; MOD:01790 def: "A protein modification that effectively converts an an N-terminal L-tyrosine residue to tyrosine immonium ion." [PubMed:17074506, PubMed:18688235] phosphohistidine immonium ion ; MOD:01791 def: "A protein modification that effectively converts an N-terminal phosphohistidine residue to phosphohistidine immonium ion." [PubMed:17690871, PubMed:18688235, PubMed:20847263] phosphotyrosine immonium ion ; MOD:01792 def: "A protein modification that effectively converts an N-terminal O4'-phospho-L-tyrosine residue to tyrosine immonium ion." [PubMed:17690871, PubMed:18688235] S-carboxamidomethyl-L-cysteine sulfoxide ; MOD:01793 def: "A protein modification that effectively converts an L-cysteine residue to S-carboxamidomethyl-L-cysteine sulfoxide." [PubMed:11212008, PubMed:17689096, PubMed:18306178, PubMed:18688235] 1x(13)C,3x(2)H labeled monomethylated residue ; MOD:01794 def: "A protein modification that effectively replaces the methyl group of a residue containing common isotopes with a 1x(13)C,3x(2)H labeled monomethylated residue." [PubMed:18688235] 1x(13)C,3x(2)H C(6)-labeled L-methionine ; MOD:01795 def: "A protein modification that effectively converts an L-methionine residue containing common isotopes to 1x(13)C,3x(2)H C(6)-labeled L-methionine." [PubMed:15782174, PubMed:18688235] 1x(13)C,3x(2)H C(6)-labeled L-methionine sulfoxide ; MOD:01796 def: "A protein modification that effectively converts an L-methionine residue containing common isotopes to 1x(13)C,3x(2)H C(6)-labeled L-methionine sulfoxide." [PubMed:15782174, PubMed:18688235] 1'-phosphohistidine immonium ion ; MOD:01797 def: "A protein modification that effectively converts an N-terminal 1'-phosphohistidine residue to 1'-phosphohistidine immonium ion." [PubMed:17690871, PubMed:18688235, PubMed:20847263] 3'-phosphohistidine immonium ion ; MOD:01798 def: "A protein modification that effectively converts an N-terminal 3'-phosphohistidine residue to 3'-phosphohistidine immonium ion." [PubMed:18688235] methylated serine ; MOD:01799 def: "A protein modification that effectively converts an L-alanine residue to a methylated serine, such as N-methylserine, N,N-dimethylserine, or N,N,N-trimethylserine." [PubMed:18688235] N-methylated serine ; MOD:01800 def: "A protein modification that effectively replaces an L-serine alpha amino hydrogen with a methyl group." [PubMed:18688235] protonated L-serine (L-serinium) residue ; MOD:01801 def: "A protein modification that effectively converts an L-serine residue to an L-serinium (protonated L-serine)." [PubMed:18688235] N,N,N-trimethyl-L-serine (from L-serinium) ; MOD:01802 def: "A protein modification that effectively converts an L-serinium (protonated L-serine) residue to an N,N,N-trimethyl-L-serine." [PubMed:18688235] O-methylated threonine ; MOD:01803 def: "A protein modification that effectively converts an L-threonine residue to a methylated threonine, such as O-methyl-L-threonine or L-threonine methyl ester." [PubMed:18688235] glycosylphosphorylated residue ; MOD:01804 def: "A protein modification that effectively results from forming an adduct with a glycosylphosphate through a phosphodiester bond." [PubMed:18688235] N-(L-isoaspartyl)-glycine (Asp) ; MOD:01805 def: "A protein modification that effectively crosslinks an L-aspartic acid residue and a glycine residue by an isopeptide bond with formation of N-(L-isoaspartyl)-glycine and the release of water." [ChEBI:21479, PubMed:1826288, PubMed:18671394, RESID:AA0126] N,N-dimethyl-L-leucine ; MOD:01806 def: "A protein modification that effectively converts an L-leucine residue to N,N-dimethyl-L-leucine." [PubMed:19522542, RESID:AA0538] N-formyl-L-glutamic acid ; MOD:01807 def: "A protein modification that effectively converts an L-glutamic acid residue to N-formyl-L-glutamic acid." [PubMed:18001127, RESID:AA0539] N-methylated leucine ; MOD:01808 def: "A protein modification that effectively replaces an L-leucine alpha amino hydrogen with a methyl group." [PubMed:18688235] 5x(13)C,1x(15)N labeled residue ; MOD:01809 def: "A protein modification that effectively converts a residue containing common isotopes to a 5x(13)C,1x(15)N labeled residue." [PubMed:12771378, UniMod:268] 5x(13)C,1x(15)N labeled L-proline ; MOD:01810 def: "A protein modification that effectively converts an L-proline residue to 5x(13)C,1x(15)N labeled L-proline." [PubMed:12771378, UniMod:268#P] 5x(13)C,1x(15)N labeled L-methionine ; MOD:01811 def: "A protein modification that effectively converts an L-methionine residue to 5x(13)C,1x(15)N labeled L-methionine." [PubMed:12771378, UniMod:268#M] 5x(13)C,1x(15)N labeled L-methionine sulfoxide ; MOD:01812 def: "A protein modification that effectively converts an L-methionine residue to 5x(13)C,1x(15)N labeled L-methionine sulfoxide." [PubMed:12771378, UniMod:268#M] morpholine-2-acetylated residue ; MOD:01813 def: "A protein modification that effectively substitutes a morpholine-2-acetyl group for a hydrogen atom." [PubMed:10446193, UniMod:29] L-cysteine 3-hydroxy-2,5-pyridinedicarboxylic acid ; MOD:01814 def: "A protein modification that effectively cross-links a cysteine and two serine residues to form L-cysteine 3-hydroxy-2,5-pyridinedicarboxylic acid." [PubMed:18406324, PubMed:19678698, PubMed:893891, RESID:AA0540] L-glutamate thiazole-4-carboxylic acid ; MOD:01815 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-glutamic acid residue to form L-glutamate thiazole-4-carboxylic acid." [PubMed:18406324, PubMed:19678698, PubMed:893891, RESID:AA0541] 2'-hydroxy-L-tryptophan ; MOD:01816 def: "A protein modification that effectively converts an L-tryptophan residue to a 2'-hydroxy-L-tryptophan." [PubMed:11714714, RESID:AA0542] oxidation of tryptophan to 2'-oxo-L-tryptophan ; MOD:01817 def: "A protein modification that effectively converts an L-tryptophan residue to a 2'-oxo-L-tryptophan." [PubMed:9461080, RESID:AA0543] 1'-(L-tryptophan-3'-yl)-L-tryptophan ; MOD:01818 def: "A protein modification that effectively cross-links two tryptophan residues to form 1'-(L-tryptophan-3'-yl)-L-tryptophan." [PubMed:20600836, RESID:AA0544] N6-succinyl-L-lysine ; MOD:01819 def: "A protein modification that effectively converts an L-lysine residue to N6-succinyl-L-lysine." [PubMed:16582421, PubMed:21151122, RESID:AA0545] isotope tagged sufhydryl reagent modified cysteine ; MOD:01820 def: "A protein modification that effectively replaces a cysteine sulhydryl hydrogen with an isotope tagged sulfhydryl reagent group." [PubMed:18688235] cysTMT6plex reporter+balance reagent cysteine disulfide ; MOD:01821 def: "A protein modification that effectively replaces a residue sulfhydryl hydrogen with a Thermo Scientific cysTMT6plex reporter+balance group." [UniMod:985, URL:http\://www.piercenet.com/files/2162220.pdf] cysTMT6plex-zero reporter+balance reagent cysteine disulfide ; MOD:01822 def: "A protein modification that effectively replaces a residue sulfhydryl hydrogen with a Thermo Scientific cysTMT6plex-zero reporter+balance group." [UniMod:984, URL:http\://www.piercenet.com/files/2162220.pdf] cysTMT6plex-126 reporter+balance reagent cysteine disulfide ; MOD:01823 def: "A protein modification that effectively replaces a residue sulfhydryl hydrogen with a Thermo Scientific cysTMT6plex-126 reporter+balance group." [PubMed:18688235, URL:http\://www.piercenet.com/files/2162220.pdf] cysTMT6plex-127 reporter+balance reagent cysteine disulfide ; MOD:01824 def: "A protein modification that effectively replaces a residue sulfhydryl hydrogen with a Thermo Scientific cysTMT6plex-127 reporter+balance group." [PubMed:18688235, URL:http\://www.piercenet.com/files/2162220.pdf] cysTMT6plex-128 reporter+balance reagent cysteine disulfide ; MOD:01825 def: "A protein modification that effectively replaces a residue sulfhydryl hydrogen with a Thermo Scientific cysTMT6plex-128 reporter+balance group." [PubMed:18688235, URL:http\://www.piercenet.com/files/2162220.pdf] cysTMT6plex-129 reporter+balance reagent cysteine disulfide ; MOD:01826 def: "A protein modification that effectively replaces a residue sulfhydryl hydrogen with a Thermo Scientific cysTMT6plex-129 reporter+balance group." [PubMed:18688235, URL:http\://www.piercenet.com/files/2162220.pdf] cysTMT6plex-130 reporter+balance reagent cysteine disulfide ; MOD:01827 def: "A protein modification that effectively replaces a residue sulfhydryl hydrogen with a Thermo Scientific cysTMT6plex-130 reporter+balance group." [PubMed:18688235, URL:http\://www.piercenet.com/files/2162220.pdf] cysTMT6plex-131 reporter+balance reagent cysteine disulfide ; MOD:01828 def: "A protein modification that effectively replaces a residue sulfhydryl hydrogen with a Thermo Scientific cysTMT6plex-131 reporter+balance group." [PubMed:18688235, URL:http\://www.piercenet.com/files/2162220.pdf] S-carboxymethyl-L-cysteine sulfoxide ; MOD:01829 def: "A protein modification that effectively converts an L-cysteine residue to S-carboxymethyl-L-cysteine sulfoxide." [PubMed:17689096, PubMed:18688235] S-carboxymethyl-L-cysteine sulfone ; MOD:01830 def: "A protein modification that effectively converts an L-cysteine residue to S-carboxymethyl-L-cysteine sulfone." [PubMed:18688235] S-carboxamidomethyl-L-cysteine sulfone ; MOD:01831 def: "A protein modification that effectively converts an L-cysteine residue to S-carboxamidomethyl-L-cysteine sulfone." [PubMed:18688235] 5x(13)C-labeled residue ; MOD:01832 def: "A protein modification that effectively converts a residue containing common isotopes to a 5x(13)C-labeled residue." [PubMed:12771378, UniMod:772] 5x(13)C-labeled L-methionine ; MOD:01833 def: "A protein modification that effectively converts an L-methionine residue containing common isotopes to 5x(13)C-labeled L-methionine." [PubMed:18688235, url:] 5x(13)C-labeled L-methionine sulfoxide ; MOD:01834 def: "A protein modification that effectively converts an L-methionine residue containing common isotopes to 5x(13)C-labeled L-methionine sulfoxide." [PubMed:18688235] 5x(13)C-labeled L-methionine sulfone ; MOD:01835 def: "A protein modification that effectively converts an L-methionine residue containing common isotopes to 5x(13)C-labeled L-methionine sulfone." [PubMed:18688235] N6-[([1-(6-nitro-2H-1,3-benzodioxol-5-yl)ethoxy]carbonyl]lysine ; MOD:01836 def: "A protein modification that effectively converts an L-lysine residue to N6-[([1-(6-nitro-2H-1,3-benzodioxol-5-yl)ethoxy]carbonyl]lysine." [PubMed:18688235, PubMed:20218600, PubMed:21271704] L-lanthionine (Cys-Cys) ; MOD:01837 def: "A protein modification that effectively cross-links two L-cysteine residues with a thioether bond to form L-lanthionine." [ChEBI:21347, PubMed:20805503, PubMed:6007887, RESID:AA0110#CYS2] L-lysinoalanine (Lys) ; MOD:01838 def: "A protein modification that effectively converts an L-lysine residue to L-lysinoalanine." [PubMed:19155267, PubMed:2544544, RESID:AA0123#LYS] L-lanthionine ; MOD:01839 def: "A protein modification that effectively cross-links either two L-cysteine residues, or an L-cysteine residue and an L-serine residue by a thioether bond to form L-lanthionine." [PubMed:18688235] L-allo-isoleucine ; MOD:01840 def: "A protein modification that effectively converts an L-isoleucine residue to L-allo-isoleucine." [ChEBI:43433, PubMed:20805503, RESID:AA0546] lanthionine ; MOD:01841 def: "A protein modification that effectively cross-links either two or an L-cysteine residue and an L-serine residue by a thioether bond to form a lanthionine, either D- or L- or meso-lanthionine." [PubMed:18688235] S-(2-aminovinyl)-L-cysteine ; MOD:01842 def: "A protein modification that effectively converts two L-cysteine residues to S-(2-aminovinyl)-L-cysteine." [PubMed:20805503, RESID:AA0548] 5'-chloro-L-tryptophan ; MOD:01843 def: "A protein modification that effectively converts an L-tryptophan residue to 5'-chloro-L-tryptophan." [PubMed:18215770, RESID:AA0549] 2-(3-methylbutanoyl)-5-hydroxyoxazole-4-carbothionic acid ; MOD:01844 def: "A protein modification that effectively converts an L-cysteine residue and an L-leucine residue to 2-(3-methylbutanoyl)-5-hydroxyoxazole-4-carbothionic acid." [PubMed:15361623, PubMed:18729522, PubMed:20961038, PubMed:21254756, RESID:AA0550] L-proline 5-hydroxyoxazole-4-carbothionic acid ; MOD:01845 def: "A protein modification that effectively converts an L-cysteine residue and an L-proline residue to L-proline 5-hydroxyoxazole-4-carbothionic acid." [PubMed:15361623, PubMed:18729522, PubMed:20961038, PubMed:21254756, RESID:AA0551] methanobactin OB3b copper complex ; MOD:01846 def: "A protein modification that effectively converts two L-cysteine residues, and a copper atom to the methanobactin OB3b copper complex." [PubMed:15361623, PubMed:18729522, PubMed:20961038, PubMed:21254756, RESID:AA0552] L-cysteine sulfinyl phosphate ; MOD:01847 def: "A protein modification that effectively converts an L-cysteine residue to L-cysteine sulfinyl phosphate." [PubMed:16565085, RESID:AA0557] S-(spermidinoglutathion-S-yl)-L-cysteine ; MOD:01848 def: "A protein modification that effectively converts an L-cysteine residue to S-(spermidinoglutathion-S-yl)-L-cysteine." [ChEBI:16613, PubMed:20530482, RESID:AA0558] S-(2-aminovinyl)-D-cysteine (Cys-Cys) ; MOD:01849 def: "A protein modification that effectively cross-links two L-cysteine residues by a thioether bond to form S-(2-aminovinyl)-D-cysteine." [PubMed:20805503, RESID:AA0204#CYS2] S-(2-aminovinyl)-D-cysteine ; MOD:01850 def: "A protein modification that effectively cross-links either two L-cysteine residues, or an L-cysteine residue and an L-serine residue by a thioether bond to form S-(2-aminovinyl)-D-cysteine." [RESID:AA0204] S-(2-aminovinyl)-cysteine ; MOD:01851 def: "A protein modification that effectively cross-links either two L-cysteine residues, or an L-cysteine residue and an L-serine residue by a thioether bond to form S-(2-aminovinyl)-cysteine." [PubMed:18688235] L-lysinoalanine (Lys-Cys) ; MOD:01852 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-lysine residue to release hydrogen sulfide and form 2-amino-6-(2-amino-2-carboxyethylamino)hexanoic acid." [DeltaMass:0] L-lysinoalanine ; MOD:01853 def: "A protein modification that effectively converts an L-lysine residue to L-lysinoalanine either by forming a cross-link with peptidyl-cysteine or peptidyl-serine, or by condensation with free serine." [PubMed:18688235] sulfur monooxygenated residue ; MOD:01854 def: "A protein modification that effectively adds one oxygen atom to a sulfur atom of a residue without removing hydrogen atoms." [PubMed:18688235] sulfur dioxygenated residue ; MOD:01855 def: "A protein modification that effectively adds two oxygen atoms to a sulfur atom of a residue without removing hydrogen atoms." [PubMed:18688235] oxazole/oxazoline ring crosslinked residues (Cys) ; MOD:01856 def: "A protein modification that crosslinks two residues by rearrangement and condensation of a cysteine with the carbonyl of the preceding residue to form a 1,3-oxazole-4-carbothionic acid." [PubMed:18688235] 2-(L-cystein-S-yl)-methionine ; MOD:01857 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-methionine residue by a thioether bond to form 2-(L-cystein-S-yl)-methionine." [PubMed:20805502, RESID:AA0559] S-(N-acetylamino)glucosyl-L-cysteine ; MOD:01858 def: "A protein modification that effectively converts an L-cysteine residue to S-(N-acetylamino)glucosyl-L-cysteine." [ChEBI:61631, PubMed:21251913, PubMed:21395300, RESID:AA0560] 4-amino-3-isothiazolidinone-L-phenylalanine ; MOD:01859 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-phenylalanine residue to form 4-amino-3-isothiazolidinone-L-phenylalanine." [PubMed:17502599, RESID:AA0562] L-cysteine bacillithiol disulfide ; MOD:01860 def: "A protein modification that effectively converts an L-cysteine residue to L-cysteine bacillithiol disulfide." [ChEBI:61338, PubMed:19578333, RESID:AA0563] isothiazolidinone ring crosslinked residues ; MOD:01861 def: "A protein modification that crosslinks two residues by condensation of a cysteine thiol with the amido nitrogen of the following residue to form an isothiazolidinone ring." [PubMed:18688235] disulfide conjugated residue ; MOD:01862 def: "A protein modification that effectively replaces the hydrogen atom of a cysteine sulfanyl group with a substituted sulfanyl group, forming a disulfide bond that does not cross-link two encoded peptide chains." [PubMed:18688235] mTRAQ reporter+balance reagent acylated residue ; MOD:01863 def: "A protein modification that effectively replaces a hydrogen atom of a residue with one of the Applied Biosystems mTRAQ reagent reporter+balance groups." [PubMed:18688235] mTRAQ light reporter+balance reagent acylated residue ; MOD:01864 def: "A protein modification that effectively replaces a hydrogen atom of a residue with the Applied Biosystems mTRAQ light reporter+balance group." [UniMod:888] mTRAQ light reporter+balance reagent acylated N-terminal ; MOD:01865 def: "A protein modification that effectively replaces a hydrogen atom of a protein N-terminal with the Applied Biosystems mTRAQ light reporter+balance group." [OMSSA:208, UniMod:888#N-term] mTRAQ light reporter+balance reagent N6-acylated lysine ; MOD:01866 def: "A protein modification that effectively replaces the N6-amino hydrogen atom of a lysine residue with the Applied Biosystems mTRAQ light reporter+balance group." [OMSSA:209, UniMod:888#K] mTRAQ light reporter+balance reagent O4'-acylated tyrosine ; MOD:01867 def: "A protein modification that effectively replaces the O4'-hydrogen atom of a tyrosine residue with the Applied Biosystems mTRAQ light reporter+balance group." [OMSSA:210, UniMod:888#Y] modifications with monoisotopic mass differences that are nominally equal at 140.094963 Da ; MOD:01868 def: "Modifications that have monoisotopic mass differences from their respective origins of 140.094963 Da." [PubMed:18688235] mTRAQ light reporter fragment ; MOD:01869 def: "The protein modification reporter fragment produced by an Applied Biosystems mTRAQ light reagent derivatized residue." [PubMed:18688235] mTRAQ reporter fragment ; MOD:01870 def: "A protein modification reporter fragment produced by an Applied Biosystems mTRAQ reagent derivatized residue." [PubMed:18688235] cyclized N-terminal S-carboxamidomethyl-L-cysteine ; MOD:01871 def: "A protein modification that effectively cyclizes an S-carboxamidomethyl-L-cysteine residue to (R)-5-oxo-1,4-tetrahydrothiazine-3-carboxylic acid with the loss of ammonia." [DeltaMass:336, PubMed:12643538, UniMod:26] cyclized N-terminal S-carboxymethyl-L-cysteine ; MOD:01872 def: "A protein modification that effectively cyclizes an S-carboxymethyl-L-cysteine residue to (R)-5-oxo-1,4-tetrahydrothiazine-3-carboxylic acid with the loss of water." [PubMed:12643538, UniMod:26] N-carboxy-L-alanine ; MOD:01873 def: "A protein modification that effectively converts an L-alanine residue to N-carboxy-L-alanine." [PubMed:18688235, PubMed:4593770, PubMed:4647257, PubMed:8312270] N-carboxy-L-valine ; MOD:01874 def: "A protein modification that effectively converts an L-alanine residue to N-carboxy-L-valine." [PubMed:18688235, PubMed:4593770, PubMed:4647257, PubMed:8312270] N6-acylated L-lysine ; MOD:01875 def: "A protein modification that effectively replaces an N6-amino hydrogen atom of L-lysine with an acyl group." [PubMed:18688235] 4x(1)H,4x(12)C-labeled alpha-amino succinylated residue ; MOD:01876 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a 4x(12)C labeled succinyl group." [PubMed:11857757, PubMed:12175151, PubMed:12716131, UniMod:64] 2-(4-guanidinobutanoyl)-5-hydroxyimidazole-4-carbothionic acid ; MOD:01877 def: "A protein modification that effectively converts an L-cysteine residue and an L-arginine residue to 2-(4-guanidinobutanoyl)-5-hydroxyimidazole-4-carbothionic acid." [PubMed:20961038, RESID:AA0553] L-threonine 5-hydroxyoxazole-4-carbonthionic acid ; MOD:01878 def: "A protein modification that effectively converts an L-cysteine residue and an L-threonine residue to L-threonine 5-hydroxyoxazole-4-carbothionic acid." [PubMed:20961038, RESID:AA0554] methanobactin SB2 copper complex ; MOD:01879 def: "A protein modification that effectively converts two L-cysteine residues, an L-arginine residue, an L-threonine residue and a copper atom to the methanobactin SB2 copper complex." [PubMed:20961038, RESID:AA0555] L-deoxyhypusine ; MOD:01880 def: "modification from RESID" [ChEBI:50038, PubMed:16452303, RESID:AA0564] 3-(L-phenylalan-2'-yl)-L-valine ; MOD:01881 def: "A protein modification that effectively crosslinks an L-phenylalanine residue and an L-valine residue by a free radical process effectively releasing a hydrogen molecule and forming 3-(L-phenylalan-2'-yl)-L-valine." [PubMed:21596985, RESID:AA0565] 5-imidazolinone ring crosslinked residues (Gly) ; MOD:01882 def: "A protein modification that effectively crosslinks the carbonyl of an amino acid residue at position n with the alpha amino of a glycine residue at position n+2 to form a 5-imidazolinone ring." [PubMed:18688235] 5-imidazolinone ring crosslinked residues (Cys) ; MOD:01883 def: "A protein modification that crosslinks two residues by rearrangement and condensation of a cysteine with the carbonyl of the preceding residue to form a 5-imidazolinone ring." [PubMed:18688235] 4-aminobutylated residue ; MOD:01884 def: "A protein modification that effectively replaces a hydrogen atom with a 4-aminobutyl group, usually derived from spermidine." [PubMed:18688235] biotinylated residue ; MOD:01885 def: "A protein modification that effectively replaces a hydrogen atom with a biotinyl group." [PubMed:18688235] thiolated residue ; MOD:01886 def: "A protein modification that effectively replaces a hydrogen atom with an sulfanyl or substituted sulfanyl group." [PubMed:18688235] Uniblue A derivatized lysine ; MOD:01887 def: "A protein modification that is produced by reaction with 1-amino-4-{[3-(ethenylsulfonyl)phenyl]amino}-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate, Uniblue A, to form Uniblue A lysine adduct." [PubMed:18688235] didehydrogenated residue ; MOD:01888 def: "A protein modification that effectively removes two neutral hydrogen atoms (proton and electron) from a residue." [UniMod:401] S-(2-succinyl)-L-cysteine ; MOD:01889 def: "A protein modification that effectively converts an L-cysteine residue to S-(2-succinyl)-L-cysteine, by addition of either fumaric acid or maleic acid." [PubMed:16624247, PubMed:18448829, PubMed:20677745, RESID:AA0561, UniMod:957] N-[(L-histidin-1'-yl)methyl]-L-methionine (fMet) ; MOD:01890 def: "A protein modification that effectively crosslinks an N-formyl-L-methionine residue and an L-histidine residue to form N-[(L-histidin-1'-yl)methyl]-L-methionine." [PubMed:19622680, RESID:AA0566#FMET] N-[(L-histidin-1'-yl)methyl]-L-methionine (Met) ; MOD:01891 def: "A protein modification that effectively crosslinks an L-methionine residue and an L-histidine residue to form N-[(L-histidin-1'-yl)methyl]-L-methionine." [PubMed:19622680, RESID:AA0566#MET] N6-crotonyl-L-lysine ; MOD:01892 def: "A protein modification that effectively converts an L-lysine residue to N6-crotonyl-L-lysine." [PubMed:21925322, RESID:AA0567] N6-malonyl-L-lysine ; MOD:01893 def: "A protein modification that effectively converts an L-lysine residue to N6-malonyl-L-lysine." [PubMed:21908771, PubMed:8349414, RESID:AA0568] propanoylated residue ; MOD:01894 def: "A protein modification that effectively replaces a hydrogen atom with an propanoyl group." [PubMed:11857757, PubMed:11999733, PubMed:12175151, UniMod:58] alpha-amino 3x(12)C-labeled propanoylated residue ; MOD:01895 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a 3x(12)C-labeled propanoyl group." [PubMed:11857757, PubMed:11999733, PubMed:12175151, UniMod:58#N-term] trifluoroacetic acid adduct ; MOD:01896 def: "A protein modification produced by trifluoroacetic acid forming an adduct, either a salt or a hydrogen bonded carboxylic acid dimer, with an amino acid residue." [PubMed:18688235] 5-hydroxy-3-methyl-L-proline (Ile) ; MOD:01897 def: "A protein modification that effectively converts an L-isoleucine residue to 5-hydroxy-3-methyl-L-proline." [PubMed:21788474, PubMed:7592021, PubMed:8557573, RESID:AA0473] N2,N2-dimethyl-L-arginine ; MOD:01898 def: "modification from RESID" [PubMed:21568297, PubMed:21950656, RESID:AA0569] L-arginine thiazole-4-carboxylic acid ; MOD:01899 def: "A protein modification that effectively crosslinks an L-arginine residue and an L-cysteine residue to form arginine thiazole-4-carboxylic acid." [PubMed:21568297, PubMed:21950656, RESID:AA0570] L-cysteine 5-methyloxazole-4-carboxylic acid ; MOD:01900 def: "A protein modification that effectively crosslinks an L-cysteine residue and an L-threonine residue to form L-cysteine 5-methyloxazole-4-carboxylic acid." [PubMed:21568297, PubMed:21950656, RESID:AA0571] L-threonine 5-methyloxazole-4-carboxylic acid ; MOD:01901 def: "A protein modification that effectively crosslinks two L-threonine residues to form L-threonine 5-methyloxazole-4-carboxylic acid." [PubMed:21568297, PubMed:21950656, RESID:AA0572] L-isoleucine oxazole-4-carboxylic acid ; MOD:01902 def: "A protein modification that effectively crosslinks an L-isoleucine residue and an L-serine residue to form L-cysteine oxazole-4-carboxylic acid." [PubMed:21568297, PubMed:21950656, RESID:AA0573] L-serine oxazole-4-carboxylic acid ; MOD:01903 def: "A protein modification that effectively crosslinks two L-serine residues to form serine oxazole-4-carboxylic acid." [PubMed:21568297, PubMed:21950656, RESID:AA0574] L-serine 5-methyloxazoline-4-carboxylic acid ; MOD:01904 def: "A protein modification that effectively crosslinks an L-serine residue and an L-threonine residue to form L-serine 5-methyloxazoline-4-carboxylic acid." [PubMed:21568297, PubMed:21950656, RESID:AA0575] 5-hydroxy-3-methyl-L-proline ; MOD:01905 def: "A protein modification that effectively converts a source amino acid residue to 5-hydroxy-3-methyl-L-proline." [PubMed:7592021, PubMed:8557573, RESID:AA0473] dehydromethionine ; MOD:01906 def: "A protein modification that effectively converts an L-methionine residue to dehydromethionine." [PubMed:18688235, PubMed:19775156] dehydromethionine (from L-methioninium) ; MOD:01907 def: "A protein modification that effectively converts an L-methioninium (protonated L-methionine) residue to dehydromethionine." [PubMed:18688235, PubMed:19775156] 4-sulfophenyl isothiocyanate alpha-amino derivatized residue ; MOD:01908 def: "A protein modification that effectively converts a residue to the 4-sulfophenyl isothiocyanate adduct, alpha-amino-[(4-sulfophenyl)carbamothioyl] residue." [PubMed:14689565, PubMed:14745769, PubMed:15549660, PubMed:16526082, UniMod:261#N-term] 6x(13)C labeled 4-sulfophenyl isothiocyanate alpha-amino derivatized residue ; MOD:01909 def: "A protein modification that effectively converts a residue to the 6x(13)C labeled 4-sulfophenyl isothiocyanate adduct, alpha-amino-[(4-sulfophenyl)carbamothioyl] residue." [PubMed:11467524, PubMed:16526082, UniMod:464#N-term] monofluorinated residue ; MOD:01910 def: "A protein modification that effectively substitutes one hydrogen atom of a residue with one fluorine atom." [UniMod:127] monochlorinated residue ; MOD:01911 def: "A protein modification that effectively substitutes one hydrogen atom of a residue with one chlorine atom." [UniMod:936] monobrominated residue ; MOD:01912 def: "A protein modification that effectively substitutes one hydrogen atom of a residue with one bromine atom." [UniMod:340] monochlorinated L-tryptophan ; MOD:01913 def: "A protein modification that effectively substitutes one hydrogen atom of an L-tryptophan residue with one chlorine atom." [PubMed:18688235] O5-galactosyl-L-hydroxylysine ; MOD:01914 def: "A protein modification that effectively converts an L-lysine residue to O5-galactosyl-L-hydroxylysine." [PMID:743239, PubMed:17516569, UniMod:907] N-formyl-L-alanine ; MOD:01915 def: "A protein modification that effectively converts an L-alanine residue to N-formyl-L-alanine." [PubMed:9334739, RESID:AA0576] O4'-(N-acetylamino)galactosyl-L-tyrosine ; MOD:01916 def: "A protein modification that effectively converts an L-tyrosine residue to O4'-(N-acetylamino)galactosyl-L-tyrosine." [PubMed:21712440, PubMed:21983924, RESID:AA0577] N6-(L-isoaspartyl)-L-lysine (Asp) ; MOD:01917 def: "A protein modification that effectively crosslinks an L-aspartic acid residue and an L-lysine residue by an isopeptide bond with the formation of N6-(L-isoaspartyl)-L-lysine and the release of water." [ChEBI:21862, PubMed:11000116, PubMed:15044436, PubMed:18063798, PubMed:6503713, RESID:AA0294#ASP] (2S,5S)-5-hydroxylysine ; MOD:01918 def: "A protein modification that effectively converts an L-lysine residue to (2S,5S)-5-hydroxylysine." [PubMed:19574390, PubMed:22238144, RESID:AA0578] (2S,3S)-3-hydroxyaspartic acid ; MOD:01919 def: "A protein modification that effectively converts an L-aspartic acid residue to (2S,3S)-3-hydroxyaspartic acid." [ChEBI:10696, PubMed:21177872, RESID:AA0579] 3-hydroxy-L-histidine ; MOD:01920 def: "A protein modification that effectively converts an L-histidine residue to 3-hydroxy-L-histidine." [PubMed:21251231, RESID:AA0580] D-aspartic acid (Asp) ; MOD:01921 def: "A protein modification that effectively converts an L-aspartic acid residue to D-aspartic acid." [ChEBI:48094, PubMed:9384562, RESID:AA0190#ASP] 3-methoxydehydroalanine ; MOD:01922 def: "A protein modification that effectively converts an L-serine residue to 3-methoxydehydroalanine." [PubMed:19745839, RESID:AA0582] N6-(L-aspartyl)-L-lysine ; MOD:01923 def: "A protein modification that effectively crosslinks an L-aspartic acid residue and an L-lysine residue by an isopeptide bond to form N6-(L-aspartyl)-L-lysine and the release of water." [PubMed:15044436, RESID:AA0583] S-octanoyl-L-cysteine ; MOD:01924 def: "A protein modification that effectively converts an L-cysteine residue to S-octanoyl-L-cysteine." [PubMed:12591875, PubMed:16342964, RESID:AA0584] (2S,5R)-5-hydroxylysine ; MOD:01925 def: "A protein modification that effectively converts an L-lysine residue to (2S,5R)-5-hydroxylysine." [ChEBI:18040, PubMed:13375629, PubMed:15504407, PubMed:16101297, PubMed:2857489, RESID:AA0028] 3-hydroxy-L-aspartic acid ; MOD:01926 def: "A protein modification that effectively converts an L-aspartic acid residue to one of the diastereomeric 3-hydroxy-L-aspartic acid residues." [OMSSA:59, UniMod:35#D] O-glycosyl-L-tyrosine ; MOD:01927 def: "A protein modification that effectively converts an L-tyrosine residue to O4'-glycosyltyrosine." [PubMed:18688235] N-(L-isoaspartyl)-glycine ; MOD:01928 def: "A protein modification that effectively crosslinks either an L-asparagine residue or an L-aspartic acid residue with a glycine residue by an isopeptide bond with formation of N-(L-isoaspartyl)glycine." [ChEBI:21479, PubMed:1826288, RESID:AA0126] N6-(L-isoaspartyl)-L-lysine ; MOD:01929 def: "A protein modification that effectively crosslinks an either an L-asparagine residue or an L-aspartic acid residue with an L-lysine residue by an isopeptide bond with the formation of N6-(L-isoaspartyl)-L-lysine." [ChEBI:21862, DeltaMass:0, PubMed:11000116, PubMed:6503713, RESID:AA0294] D-aspartic acid (Asn) ; MOD:01930 def: "A protein modification that effectively converts an L-asparagine residue to D-aspartic acid." [ChEBI:48094, PubMed:9384562, RESID:AA0190#ASN] N6-phospho-L-lysine ; MOD:01931 def: "A protein modification that effectively converts an L-lysine residue to N6-phospho-L-lysine." [PubMed:20144148, RESID:AA0585] L-lysinonorleucine ; MOD:01932 def: "A protein modification that effectively cross-links two lysine residues with a carbon-nitrogen bond to form L-lysinonorleucine.." [PubMed:5117030, PubMed:5817620, PubMed:5879466, PubMed:6030254, RESID:AA0586] desmosine ; MOD:01933 def: "A protein modification that effectively cross-links four L-lysine residues to form desmosine." [ChEBI:37629, PubMed:13941623, PubMed:14109938, PubMed:14109939, PubMed:5839176, RESID:AA0587] isodesmosine ; MOD:01934 def: "A protein modification that effectively cross-links four L-lysine residues to form isodesmosine." [ChEBI:37629, PubMed:13941623, PubMed:14109938, PubMed:14109939, PubMed:5839176, RESID:AA0588] O-glucosyl-L-hydroxylysine ; MOD:01935 def: "modification from RESID" [PubMed:22045808, RESID:AA0589] N6-oleoyl-L-lysine ; MOD:01936 def: "A protein modification that effectively converts an L-lysine residue to N6-oleoyl-L-lysine." [PubMed:20942504, RESID:AA0590] N-palmitoyl-L-methionine ; MOD:01937 def: "A protein modification that effectively converts an L-methionine residue to N-palmitoyl-L-methionine." [PubMed:20942504, RESID:AA0591] 2-(2-aminosuccinimidyl)-3-sulfanylpropanoic acid (Asn) ; MOD:01938 def: "A protein modification that crosslinks an asparagine and the following cysteine residue with the formation of (2-aminosuccinimidyl)-3-sulfanylpropanoic acid and the release of ammonia." [RESID:AA0592#ASN] 2-(2-aminosuccinimidyl)-3-sulfanylpropanoic acid (Asp) ; MOD:01939 def: "A protein modification that crosslinks an aspartic acid and the following cysteine residue with the formation of (2-aminosuccinimidyl)-3-sulfanylpropanoic acid and the loss of a water molecule." [RESID:AA0592#ASP] 2-(2-aminosuccinimidyl)pentanedioic acid (Asn) ; MOD:01940 def: "A protein modification that crosslinks an asparagine and the following glutamic acid residue with the formation of (2-aminosuccinimidyl)pentanedioic acid and the release of ammonia." [RESID:AA0593#ASN] 2-(2-aminosuccinimidyl)pentanedioic acid (Asp) ; MOD:01941 def: "A protein modification that crosslinks an aspartic acid and the following glycine residue with the formation of (2-aminosuccinimidyl)pentanedioic acid and the loss of a water molecule." [RESID:AA0593#ASP] D-aspartic acid ; MOD:01942 def: "A protein modification that effectively converts a source amino acid residue to D-aspartic acid." [ChEBI:48094, PubMed:9384562, RESID:AA0190] pyrrolidione ring crosslinked residues ; MOD:01943 def: "A protein modification that crosslinks two adjacent residues by formation of a pyrrolidione ring." [PubMed:18688235] 2-aminosuccinimide ring crosslinked residues ; MOD:01944 def: "A protein modification that forms (2-aminosuccinimidyl)acetic acid by crosslinking either an aspartic acid residue or an asparagine residue with the following residue." [PubMed:18688235] 2-(2-aminosuccinimidyl)-3-sulfanylpropanoic acid ; MOD:01945 def: "A protein modification that forms (2-aminosuccinimidyl)-3-sulfanylpropanoic acid by crosslinking either an aspartic acid residue or an asparagine residue with the following cysteine residue." [PubMed:18688235] 2-(2-aminosuccinimidyl)pentanedioic acid ; MOD:01946 def: "A protein modification that forms (2-aminosuccinimidyl)pentanedioicacid by crosslinking either an aspartic acid residue or an asparagine residue with the following glutamic acid\n residue." [PubMed:18688235] O-(L-isoaspartyl)-L-threonine (cross-link) ; MOD:01947 def: "A protein modification that effectively cross-links an L-threonine residue and an L-aspartic acid residue with an ester bond to form O-(L-isoaspartyl)-L-threonine." [PubMed:17157318, PubMed:8706862, RESID:AA0525#TDX] labionin ; MOD:01948 def: "A protein modification that effectively cross-links an L-cysteine residue and two L-serine residues by a thioether bond and a carbon-carbon bond to form labionin." [PubMed:20082397, RESID:AA0594] coelenterazine ; MOD:01949 def: "A protein modification that effectively cross-links a phenylalanine and two tyrosine residues to form coelenterazine." [ChEBI:2311, PubMed:10830969, PubMed:11572972, PubMed:19833098, RESID:AA0595] L-isoglutamyl histamine ; MOD:01950 def: "A protein modification that effectively converts an L-glutamine residue to L-isoglutamyl histamine." [PubMed:23022564, RESID:AA0596] O-(L-isoglutamyl)-L-serine (Gln-Ser) ; MOD:01951 def: "A protein modification that effectively crosslinks an L-glutamine residue and an L-serine residue by an ester bond and releasing ammonia to form O-(L-isoglutamyl)-L-serine." [PubMed:17051152, RESID:AA0597#QSX] O-(L-isoglutamyl)-L-threonine (cross-link) ; MOD:01952 def: "A protein modification that effectively cross-links an L-threonine residue and an L-glutamine residue with an ester bond releasing ammonia to form O-(L-isoglutamyl)-L-threonine." [PubMed:17051152, RESID:AA0536#TQX] tetrakis-L-cysteinyl tetrairon octanitrosyl ; MOD:01953 def: "A protein modification that effectively converts four L-cysteine residues and a four-iron cluster to tetrakis-L-cysteinyl tetrairon octanitrosyl." [PubMed:21182249, RESID:AA0599] dehydroalanine (Sec) ; MOD:01954 def: "A protein modification that effectively converts an L-selenocysteine residue to dehydroalanine." [ChEBI:17123, PubMed:10220322, PubMed:12781460, PubMed:1547888, PubMed:1815586, PubMed:20805503, PubMed:21420488, PubMed:22031445, PubMed:2914619, PubMed:7947813, PubMed:8239649, RESID:AA0181] L-alaninato bis-L-aspartato tris-L-glutamato L-histidino calcium tetramanganese pentoxide ; MOD:01955 def: "modification from RESID" [PubMed:21499260, RESID:AA0600] (3R)-3-hydroxy-L-arginine ; MOD:01956 def: "A protein modification that effectively converts an L-arginine residue to (3R)-3-hydroxy-L-arginine." [PubMed:10094780, PubMed:23103944, PubMed:786730, RESID:AA0601] 2-hydroxyproline ; MOD:01957 def: "A protein modification that effectively converts an L-proline residue to 2-hydroxyproline." [PubMed:23385463, RESID:AA0602] bis-L-cysteinyl bisglutathion-S-yl diiron disulfide ; MOD:01958 def: "A protein modification that effectively converts four L-cysteine residues and a two-iron two-sulfur cluster to bis-L-cysteinyl bisglutathion-S-yl diiron disulfide." [PubMed:17121859, RESID:AA0603] tris-L-cysteinyl L-glutamato tetrairon tetrasulfide ; MOD:01959 def: "A protein modification that effectively converts three L-cysteine residues, an L-glutamic acid and a four-iron four-sulfur cluster to tris-L-cysteinyl L-glutamato tetrairon tetrasulfide." [PubMed:21167158, RESID:AA0604] tris-L-cysteinyl L-glutamin-O6-yl tetrairon tetrasulfide ; MOD:01960 def: "A protein modification that effectively converts three L-cysteine residues, an L-glutamine residue and a four-iron four-sulfur cluster to tris-L-cysteinyl L-glutamin-O6-yl tetrairon tetrasulfide." [PubMed:11796730, RESID:AA0605] O-(L-isoglutamyl)-L-threonine (THR) ; MOD:01961 def: "OBSOLETE because redundant and identical to MOD:01785. Remap to MOD:01785." [PubMed:16618936, PubMed:17051152, PubMed:17687277, PubMed:18555071, RESID:AA0536#THR] is_obsolete: true N4-(2,4-diacetamido-2,4,6-trideoxy-D-glucosyl)-L-asparagine ; MOD:01962 def: "A protein modification that effectively converts an L-asparagine residue to N4-(2,4-diacetamido-2,4,6-trideoxy-D-glucosyl)-L-asparagine." [PubMed:12186869, PubMed:19236052, RESID:AA0606] O-(2,4-diacetamido-2,4,6-trideoxy-D-glucosyl)-L-serine ; MOD:01963 def: "A protein modification that effectively converts an L-serine residue to O-(2,4-diacetamido-2,4,6-trideoxy-D-glucosyl)-L-serine." [PubMed:23030644, RESID:AA0607] O-(2-acetamido-4-glyceramido-2,4,6-trideoxy-D-glucosyl)-L-serine ; MOD:01964 def: "A protein modification that effectively converts an L-serine residue to O-(2-acetamido-4-glyceramido-2,4,6-trideoxy-D-glucosyl)-L-serine." [PubMed:17804791, RESID:AA0608] 2xC(13),3x(2)H labeled N6-acetyl-L-lysine ; MOD:01965 def: "A protein modification that effectively converts an L-lysine residue to 2xC(13),3x(2)H labeled N6-acetyl-L-lysine." [PubMed:18688235] L-methionine (R)-sulfoxide ; MOD:01966 def: "OBSOLETE because redundant and identical to MOD:00720. Remap to MOD:00720." [ChEBI:45764, PubMed:21406390, PubMed:22116028, PubMed:23911929, RESID:AA0581] is_obsolete: true omega-N-(N-acetylamino)glucosyl-L-arginine ; MOD:01967 def: "A protein modification that effectively converts an L-arginine residue to omega-N-(N-acetylamino)glucosyl-L-arginine." [PubMed:23955153, RESID:AA0609] (2R,3R,2'R)-3-methyllanthionine ; MOD:01968 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-threonine residue by a thioether bond to form (2R,3R,2'R)-3-methyllanthionine." [PubMed:23314913, RESID:AA0610] S-(gamma-glutamyl-cysteinyl-glycyl)-cysteine ; MOD:01969 def: "A protein modification that effectively converts an L-cysteine residue to S-(gamma-glutamyl-cysteinyl-glycyl)-cysteine." [PubMed:9398217, RESID:AA0611] 5-glutamyl glutamic acid ; MOD:01970 def: "A protein modification that effectively converts an L-glutamic acid residue to 5-glutamyl glutamic acid, forming an isopeptide bond with a free glutamic acid." [PubMed:10747868, PubMed:15525938, PubMed:1680872, PubMed:23434852, RESID:AA0612, UniMod:450] 5-glutamyl N2-ornithine ; MOD:01971 def: "A protein modification that effectively converts an L-glutamic acid residue to N2-ornithine." [PubMed:23434852, RESID:AA0613] 5-glutamyl coenzyme A thioester ; MOD:01972 def: "A protein modification that effectively converts an L-glutamic acid residue to 5-glutamyl coenzyme A thioester." [PubMed:16253988, PubMed:20977214, PubMed:7915164, RESID:AA0614] N6-(3-phosphoglyceryl)-L-lysine ; MOD:01973 def: "A protein modification that effectively converts an L-lysine residue to N6-(3-phosphoglyceryl)-L-lysine." [PubMed:23908237, RESID:AA0615] S-methyl-L-methionine ; MOD:01974 def: "A protein modification that effectively converts an L-methionine residue to S-methyl-L-methionine." [ChEBI:17728, PubMed:23532849, RESID:AA0616] S-poly(3-hydroxybutyrate)-L-cysteine ; MOD:01975 def: "A protein modification that effectively converts an L-cysteine residue to S-(poly-3-hydroxybutyrate)-L-cysteine." [PubMed:19711985, PubMed:9888824, RESID:AA0617] O3-(poly-3-hydroxybutyrate)-L-serine ; MOD:01976 def: "A protein modification that effectively converts an L-serine residue to O3-(poly-3-hydroxybutyrate)-L-serine." [PubMed:17659252, PubMed:20004640, RESID:AA0618] O-(L-isoglutamyl)-L-serine ; MOD:01977 def: "A protein modification that effectively crosslinks either an L-glutamine residue or an L-glutamic acid residue with an L-serine residue by an ester bond to form O-(L-isoglutamyl)-L-serine." [PubMed:17051152, RESID:AA0597] O-(L-isoaspartyl)-L-threonine ; MOD:01978 def: "A protein modification that effectively converts an L-threonine residue to O-(L-isoaspartyl)-L-threonine, using either free L-asparagine and releasing ammonia or using a peptidyl L-aspartic acid residue and releasing water." [PubMed:8706862, RESID:AA0525] O-(L-isoglutamyl)-L-threonine ; MOD:01979 def: "A protein modification that effectively converts an L-threonine residue to O-(L-isoglutamyl)-L-threonine, using free L-glutamine and releasing ammonia, or using a peptidyl L-glutamine and releasing ammonia." [PubMed:8706862, RESID:AA0536] omega-N-glycosyl-L-arginine ; MOD:01980 def: "A protein modification that effectively converts an L-arginine residue to N4-glycosyl-arginine." [PubMed:15279557, PubMed:8521968, PubMed:9536051, RESID:AA0327, UniMod:41#R] 3-methyllanthionine ; MOD:01981 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-threonine residue by a thioether bond to form 3-methyllanthionine with unresolved stereospecificity." [PubMed:18688235] N,N,N-trimethylglycine ; MOD:01982 def: "modification from RESID" [ChEBI:17750, PubMed:23818633, PubMed:23978223, RESID:AA0619] N,N-dimethylglycine ; MOD:01983 def: "A protein modification that effectively converts a glycine residue to N,N-dimethyllglycine." [ChEBI:17724, PubMed:23818633, PubMed:23978223, RESID:AA0620] 2-(L-cystein-S-yl)-L-alanine ; MOD:01984 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-alanine residue by a thioether bond to form 2-(S-L-cysteinyl)-L-alanine." [PubMed:21526839, RESID:AA0621] 2-(L-cystein-S-yl)-D-asparagine ; MOD:01985 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-asparagine residue by a thioether bond to form 2-(S-L-cysteinyl)-D-asparagine." [PubMed:21786372, RESID:AA0622] 2-(L-cystein-S-yl)-L-serine ; MOD:01986 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-serine residue by a thioether bond to form 2-(S-L-cysteinyl)-L-serine." [PubMed:21526839, RESID:AA0623] 2-(L-cystein-S-yl)-D-serine ; MOD:01987 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-serine residue by a thioether bond to form 2-(S-L-cysteinyl)-D-serine." [PubMed:21786372, RESID:AA0624] 2-(L-cystein-S-yl)-L-threonine ; MOD:01988 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-threonine residue by a thioether bond to form 2-(S-L-cysteinyl)-L-threonine." [PubMed:21526839, RESID:AA0625] 2-(L-cystein-S-yl)-D-tyrosine ; MOD:01989 def: "A protein modification that effectively cross-links an L-cysteine residue and an L-tyrosine residue by a thioether bond to form 2-(S-L-cysteinyl)-D-tyrosine." [PubMed:21526839, RESID:AA0626] protonated glycine (glycinium) residue ; MOD:01990 def: "A protein modification that effectively converts a glycine residue to a glycinium (protonated glycine)." [ChEBI:64723, PubMed:18688235] N,N,N-trimethylglycine (from glycinium) ; MOD:01991 def: "A protein modification that effectively converts a glycinium (protonated glycine) residue to an N,N,N-trimethylglycine." [ChEBI:17750, PubMed:23818633, PubMed:23978223, RESID:AA0619] alpha-carbon thioether crosslinked residues ; MOD:01992 def: "A protein modification that crosslinks two residues by formation of a thioether bond between a cysteine thiol and the alpha-carbon of another amino acid residue." [PubMed:18688235] beta-carbon thioether crosslinked residues ; MOD:01993 def: "A protein modification that crosslinks two residues by formation of a thioether bond between a cysteine thiol and the beta-carbon of another amino acid residue." [PubMed:18688235] N1'-formyl-L-tryptophan ; MOD:01994 def: "A protein modification that effectively converts an L-tryptophan residue to N1'-formyl-L-tryptophan." [PubMed:18688235] N2-formyl-L-tryptophan ; MOD:01995 def: "A protein modification that effectively converts an L-tryptophan residue to N2-formyl-L-tryptophan." [PubMed:18688235] butanoylated residue ; MOD:01996 def: "A protein modification that effectively replaces a hydrogen atom with an butanoyl group." [PubMed:18688235] N-butanoylated residue ; MOD:01997 def: "A protein modification that effectively replaces a residue amino or imino hydrogen with a butanoyl group." [PubMed:18688235] alpha-amino butanoylated residue ; MOD:01998 def: "A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with a butanoyl group." [PubMed:18688235] N6-(11-cis)-retinylidene-L-lysine ; MOD:01999 def: "A protein modification that effectively converts an L-lysine residue to N6-retinylidene-(11-cis)-L-lysine." [PubMed:18688235] N6-retinylidene-L-lysine (unspecified geometric isomer) ; MOD:02000 def: "A protein modification that effectively converts an L-lysine residue to N6-retinylidene-L-lysine (unspecified geometric isomer)." [PubMed:18688235]