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GO:0004565 beta-galactosidase activity

Term Information

ID GO:0004565
Name beta-galactosidase activity
Ontology Molecular Function
Definition Catalysis of the hydrolysis of terminal, non-reducing beta-D-galactose residues in beta-D-galactosides.
Comment Note 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.
GONUTS GO:0004565 Wiki Page

Synonyms

Synonyms are alternative words or phrases closely related in meaning to the term name, with indication of the relationship between the name and synonym given by the synonym scope. Click on the icon for more details.
Type Synonym
related lactose hydrolysis
exact exo-(1->4)-beta-D-galactanase activity
exact beta-D-lactosidase activity
exact beta-D-galactoside galactohydrolase activity
exact beta-D-galactanase activity
related S 2107
exact trilactase activity
related sumiklat
related oryzatym
related maxilact
related lactozym
related hydrolact
exact beta-lactosidase activity

Annotation Guidance

Usage of this term is subject to the following annotation guidelines:
Annotation Guidelines
Annotating to catalytic activities using the IPI evidence codeLink
Describing enzyme functions that catalyse multi-stage reactionsLink

Cross-references

Database ID
EC 3.2.1.23
InterPro IPR003476
InterPro IPR004199
InterPro IPR013529
InterPro IPR013738
InterPro IPR013739
InterPro IPR026283
MetaCyc 3.2.1.23-RXN
MetaCyc BGALACT-PWY

Replaces

This term can be used instead of these obsolete terms:
GO Identifier GO Term Name Reason
GO:0019514 lactose hydrolysis CONSIDER GO:0004565

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Child Terms

This table lists all terms that are direct descendants (child terms) of GO:0004565:
Term has no children

Protein Annotation

Displaying annotations FIRST to LAST of TOTAL Page size: Additional filters: Bookmarkable link
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Original GO Term Name
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Co-occurring Terms

These tables show the number of times the term listed in the table has been co-annotated with GO:0004565. The terms are listed in descending order of number of times the term has been co-annotated.
The table on the left is calculated using both electronic and manual-evidenced annotations, while the table on the right is calculated using only manual-evidenced annotations.
Co-occurrence statistics for GO:0004565 based on the entire annotation set Co-occurrence statistics for GO:0004565 based on non-IEA annotations only

Change Log

All changes

Timestamp Action Category Detail
2008-05-13 Added DEFINITION Catalysis of the hydrolysis of terminal, non-reducing beta-D-galactose residues in beta-D-galactosides.
2008-05-12 Deleted DEFINITION Catalysis of the hydrolysis of terminal, non-reducing beta-D-galactose residues in beta-D-galactosides.
2008-04-01 Updated RELATION is a GO:0015925 (galactosidase activity)
2007-12-14 Added SYNONYM S 2107
2007-12-14 Added SYNONYM beta-D-galactanase activity
2007-12-14 Added SYNONYM beta-D-galactoside galactohydrolase activity
2007-12-14 Added SYNONYM beta-D-lactosidase activity
2007-12-14 Added SYNONYM beta-lactosidase activity
2007-12-14 Added SYNONYM hydrolact
2007-12-14 Added SYNONYM lactozym
2007-12-14 Added SYNONYM maxilact
2007-12-14 Added SYNONYM oryzatym
2007-12-14 Added SYNONYM sumiklat
2007-12-14 Added SYNONYM trilactase activity
2007-09-06 Added SYNONYM exo-(1->4)-beta-D-galactanase activity
2007-08-09 Added SYNONYM lactose hydrolysis
2007-08-09 Deleted SYNONYM lactose hydrolysis
2005-08-10 Added SYNONYM lactose hydrolysis
2003-10-27 Added XREF MetaCyc:BGALACT-PWY
2003-10-27 Added XREF MetaCyc:3.2.1.23-RXN
2003-03-19 Updated TERM beta-galactosidase activity
2002-11-27 Added DEFINITION Catalysis of the hydrolysis of terminal, non-reducing beta-D-galactose residues in beta-D-galactosides.
2002-02-06 Updated TERM beta-galactosidase
2001-04-03 Updated TERM beta-galactosidase
2001-03-30 Added XREF EC:3.2.1.23
2001-03-30 Added TERM beta-galactosidase

Term

Timestamp Action Category Detail
2003-03-19 Updated TERM beta-galactosidase activity
2002-02-06 Updated TERM beta-galactosidase
2001-04-03 Updated TERM beta-galactosidase
2001-03-30 Added TERM beta-galactosidase

Definition/synonyms

Timestamp Action Category Detail
2008-05-13 Added DEFINITION Catalysis of the hydrolysis of terminal, non-reducing beta-D-galactose residues in beta-D-galactosides.
2008-05-12 Deleted DEFINITION Catalysis of the hydrolysis of terminal, non-reducing beta-D-galactose residues in beta-D-galactosides.
2007-12-14 Added SYNONYM S 2107
2007-12-14 Added SYNONYM beta-D-galactanase activity
2007-12-14 Added SYNONYM beta-D-galactoside galactohydrolase activity
2007-12-14 Added SYNONYM beta-D-lactosidase activity
2007-12-14 Added SYNONYM beta-lactosidase activity
2007-12-14 Added SYNONYM hydrolact
2007-12-14 Added SYNONYM lactozym
2007-12-14 Added SYNONYM maxilact
2007-12-14 Added SYNONYM oryzatym
2007-12-14 Added SYNONYM sumiklat
2007-12-14 Added SYNONYM trilactase activity
2007-09-06 Added SYNONYM exo-(1->4)-beta-D-galactanase activity
2007-08-09 Added SYNONYM lactose hydrolysis
2007-08-09 Deleted SYNONYM lactose hydrolysis
2005-08-10 Added SYNONYM lactose hydrolysis
2002-11-27 Added DEFINITION Catalysis of the hydrolysis of terminal, non-reducing beta-D-galactose residues in beta-D-galactosides.

Relationships

Timestamp Action Category Detail
2008-04-01 Updated RELATION is a GO:0015925 (galactosidase activity)

Cross-references

Timestamp Action Category Detail
2003-10-27 Added XREF MetaCyc:BGALACT-PWY
2003-10-27 Added XREF MetaCyc:3.2.1.23-RXN
2001-03-30 Added XREF EC:3.2.1.23
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