Annotations: 6QUB

Truncated beta-galactosidase III from Bifidobacterium bifidum in complex with galactose

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	7tm_2	e6qubB1	A: beta barrels	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Family A G protein-coupled receptor-like	F: 7tm_2	ECOD (v294.2)
A	7tm_2	e6qubA1	A: beta barrels	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Family A G protein-coupled receptor-like	F: 7tm_2	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.60.120.260	Mainly Beta	Sandwich	Jelly Rolls	Galactose-binding domain-like	CATH (utative)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B	3.20.20.80	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycosidases	CATH (utative)
A	2.60.120.260	Mainly Beta	Sandwich	Jelly Rolls	Galactose-binding domain-like	CATH (utative)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
A	3.20.20.80	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycosidases	CATH (utative)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	Beta-galactosidase	hydrolase activity, acting on glycosyl bonds beta-galactosidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity galactosidase activity cation binding ion binding binding metal ion binding small molecule binding	carbohydrate metabolic process primary metabolic process metabolic process cellular process	-
A	Beta-galactosidase	hydrolase activity, acting on glycosyl bonds beta-galactosidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity galactosidase activity cation binding ion binding binding metal ion binding small molecule binding	carbohydrate metabolic process primary metabolic process metabolic process cellular process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR032311	Domain of unknown function DUF4982	Domain
B	IPR051913	Glycosyl Hydrolase 2 Domain-Containing Protein	Family
B	IPR006102	Glycoside hydrolase family 2, immunoglobulin-like beta-sandwich	Domain
B	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
B	IPR006101	Glycoside hydrolase, family 2	Family
B	IPR040605	Glycoside hydrolase family 2, domain 5	Domain
B	IPR008979	Galactose-binding-like domain superfamily	Homologous Superfamily
B	IPR036156	Beta-Galactosidase/glucuronidase domain superfamily	Homologous Superfamily
B	IPR006104	Glycosyl hydrolases family 2, sugar binding domain	Domain
B	IPR000421	Coagulation factor 5/8, C-terminal domain	Domain
B	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
B	IPR006103	Glycoside hydrolase family 2, catalytic domain	Domain
B	IPR011081	Bacterial Ig-like domain	Domain
B	IPR008964	Invasin/intimin cell-adhesion fragments	Homologous Superfamily
A	IPR032311	Domain of unknown function DUF4982	Domain
A	IPR051913	Glycosyl Hydrolase 2 Domain-Containing Protein	Family
A	IPR006102	Glycoside hydrolase family 2, immunoglobulin-like beta-sandwich	Domain
A	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A	IPR006101	Glycoside hydrolase, family 2	Family
A	IPR040605	Glycoside hydrolase family 2, domain 5	Domain
A	IPR008979	Galactose-binding-like domain superfamily	Homologous Superfamily
A	IPR036156	Beta-Galactosidase/glucuronidase domain superfamily	Homologous Superfamily
A	IPR006104	Glycosyl hydrolases family 2, sugar binding domain	Domain
A	IPR000421	Coagulation factor 5/8, C-terminal domain	Domain
A	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A	IPR006103	Glycoside hydrolase family 2, catalytic domain	Domain
A	IPR011081	Bacterial Ig-like domain	Domain
A	IPR008964	Invasin/intimin cell-adhesion fragments	Homologous Superfamily

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

6QUB | pdb_00006qub

Truncated beta-galactosidase III from Bifidobacterium bifidum in complex with galactose

External Resource: Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Domain Annotation: CATH CATH Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage