The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_0). At the point of the last release, this superfamily was named:

"
Beta-galactosidase, domain 3
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 1: Beta-galactosidase A

Please note: GO annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

There are 5 GO terms relating to "molecular function"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Beta-galactosidase activity GO:0004565
Catalysis of the hydrolysis of terminal, non-reducing beta-D-galactose residues in beta-D-galactosides.
10 A2QAN3 (/IDA) A2QAN3 (/IDA) A2QAN3 (/IDA) A2QAN3 (/IDA) A2QAN3 (/IDA) Q2UCU3 (/IDA) Q2UCU3 (/IDA) Q5BFC4 (/IDA) Q700S9 (/IDA) Q700S9 (/IDA)
Beta-galactosidase activity GO:0004565
Catalysis of the hydrolysis of terminal, non-reducing beta-D-galactose residues in beta-D-galactosides.
5 A2QAN3 (/IMP) A2QAN3 (/IMP) A2QAN3 (/IMP) A2QAN3 (/IMP) A2QAN3 (/IMP)
Oligosaccharide binding GO:0070492
Interacting selectively and non-covalently with any oligosaccharide, a molecule with between two and (about) 20 monosaccharide residues connected by glycosidic linkages.
5 A2QAN3 (/IDA) A2QAN3 (/IDA) A2QAN3 (/IDA) A2QAN3 (/IDA) A2QAN3 (/IDA)
Galactose binding GO:0005534
Interacting selectively and non-covalently with the aldohexose galactose (galacto-hexose), a common constituent of many oligo- and polysaccharides.
4 Q2UCU3 (/IDA) Q2UCU3 (/IDA) Q700S9 (/IDA) Q700S9 (/IDA)
Beta-galactosidase activity GO:0004565
Catalysis of the hydrolysis of terminal, non-reducing beta-D-galactose residues in beta-D-galactosides.
1 Q5BFC4 (/RCA)

There are 3 GO terms relating to "biological process"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Lactose catabolic process GO:0005990
The chemical reactions and pathways resulting in the breakdown of lactose, the disaccharide galactopyranosyl-glucose.
9 A2QAN3 (/IDA) A2QAN3 (/IDA) A2QAN3 (/IDA) A2QAN3 (/IDA) A2QAN3 (/IDA) Q2UCU3 (/IDA) Q2UCU3 (/IDA) Q700S9 (/IDA) Q700S9 (/IDA)
Carbohydrate metabolic process GO:0005975
The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y. Includes the formation of carbohydrate derivatives by the addition of a carbohydrate residue to another molecule.
5 A2QAN3 (/IMP) A2QAN3 (/IMP) A2QAN3 (/IMP) A2QAN3 (/IMP) A2QAN3 (/IMP)
Lactose metabolic process GO:0005988
The chemical reactions and pathways involving lactose, the disaccharide galactopyranosyl-glucose.
1 Q5BFC4 (/RCA)

There are 2 GO terms relating to "cellular component"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Extracellular space GO:0005615
That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
4 Q2UCU3 (/IDA) Q2UCU3 (/IDA) Q700S9 (/IDA) Q700S9 (/IDA)
Extracellular region GO:0005576
The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
2 Q700S9 (/IDA) Q700S9 (/IDA)