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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tg(CBS)11181Eri
transgene insertion 11181, Eleanor Roosevelt Institute
MGI:5462465
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cx1
Cbstm1Unc/Cbstm1Unc
Tg(CBS)11181Eri/0
involves: 129P2/OlaHsd * C57BL/6J MGI:5462543
tg2
Tg(CBS)11181Eri/0 Not Specified MGI:5462540


Genotype
MGI:5462543
cx1
Allelic
Composition
Cbstm1Unc/Cbstm1Unc
Tg(CBS)11181Eri/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cbstm1Unc mutation (3 available); any Cbs mutation (40 available)
Tg(CBS)11181Eri mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mutants exhibit decreased survival after 80 days of age, however more than 50% are alive at 1 year of age
• mutants exhibit decreased survival after 80 days of age, however more than 50% are alive at 1 year of age

homeostasis/metabolism
• plasma levels of S-adenosylmethionine (AdoMet), and S-adenosylhomocysteine (AdoHcy) are elevated 2.6-fold and 29-fold, respectively, compared to controls
• mutants treated with betaine exhibit lowering of AdoHcy, AdoMet, and cystathionine and increased levels of plasma methionine, dimethylglycine, methylglycine, and cysteine
• plasma levels of methionine are elevated 2-fold and levels of cystathionine are elevated 4-fold compared to controls
• plasma cysteine levels are decreased about 5-fold compared to controls
• mutants treated with betaine exhibit increased levels of plasma methionine, dimethylglycine, methylglycine, and cysteine and lower cystathionine levels
• plasma levels of total homocysteine are elevated 83-fold compared to controls
• mutants treated with betaine exhibit lowering of total homocysteine levels
• analysis of tail bleeding times indicate that mutants clot about 3-fold faster than controls, indicating hypercoagulation
• treatment with betaine increases clotting time in mutants
• tail bleeding times indicate that mice are in a hypercoagulative state

liver/biliary system
• mutants exhibit signs of mild hepatopathy such as nuclear anisokoria and signs of hyperregeneration
• however no hepatic steatosis or fibrosis are seen and livers are normal in size and coloration

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
homocystinuria DOID:9263 OMIM:236200
OMIM:236250
J:165612




Genotype
MGI:5462540
tg2
Allelic
Composition
Tg(CBS)11181Eri/0
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
No mouse lines available in IMSR.
See publication links below for author information.
phenotype observed in females
phenotype observed in males
N normal phenotype
homeostasis/metabolism
N
• mutants exhibit normal basal levels of plasma total homocysteine, cystathionine, cysteine, and methionine and a normal response to methionine loading experiments, indicating normal ability to process excess homocysteine





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Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
05/14/2024
MGI 6.23
The Jackson Laboratory