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Gene Ontology Browser
Term Detail
GO term:beta-galactosidase activity
Synonym: beta-D-galactanase activity
Synonym: beta-D-galactoside galactohydrolase activity
Synonym: beta-D-lactosidase activity
Synonym: beta-lactosidase activity
Synonym: exo-(1->4)-beta-D-galactanase activity
Synonym: hydrolact
Synonym: lactose hydrolysis
Synonym: lactozym
Synonym: maxilact
Synonym: oryzatym
Synonym: S 2107
Synonym: sumiklat
Synonym: trilactase activity
GO id:GO:0004565
Definition:Catalysis of the hydrolysis of terminal, non-reducing beta-D-galactose residues in beta-D-galactosides.
CommentsNote that the inclusion of 'MetaCyc:BGALACT-PWY' is exceptional: normally MetaCyc pathway entries are database references for biological process terms, not molecular function terms. An exception was made in this case because the MetaCyc entry 'BGALACT-PWY' describes only one reaction, that catalyzed by beta-galactosidase.
Number of paths to term: 1

is-adenotes an 'is-a' relationship
part-ofdenotes a 'part-of' relationship
regulatesdenotes a 'regulates' relationship
positively-regulatesdenotes a 'positively-regulates' relationship
negatively-regulatesdenotes a 'negatively-regulates' relationship

Gene_Ontology
        is-amolecular_function
                is-acatalytic activity
                        is-ahydrolase activity
                                is-ahydrolase activity, acting on glycosyl bonds
                                        is-ahydrolase activity, hydrolyzing O-glycosyl compounds
                                                is-agalactosidase activity
                                                        is-a6-phospho-beta-galactosidase activity
                                                        is-aalpha-galactosidase activity +
                                                        is-aarabinogalactan endo-1,4-beta-galactosidase activity
                                                        is-abeta-galactosidase activity [GO:0004565] (5 genes, 6 annotations)
                                                        is-ablood-group-substance endo-1,4-beta-galactosidase activity
                                                        is-acapsular-polysaccharide endo-1,3-alpha-galactosidase activity
                                                        is-agalactan 1,3-beta-galactosidase activity
                                                        is-akeratan-sulfate endo-1,4-beta-galactosidase activity
Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Tumor Biology (MTB), Gene Ontology (GO), MouseCyc
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Send questions and comments to User Support. 		last database update
05/08/2013
MGI 5.13 		The Jackson Laboratory