Annotations: 1XC6

Native Structure Of Beta-Galactosidase from Penicillium sp. in complex with Galactose

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1xc6a2	All beta proteins	Galactose-binding domain-like	Galactose-binding domain-like	Beta-galactosidase LacA, domains 4 and 5	Beta-galactosidase LacA, domains 4 and 5	(Penicillium sp. ) [TaxId: 5081 ],	SCOPe (2.08)
A	d1xc6a4	All beta proteins	Glycosyl hydrolase domain	Glycosyl hydrolase domain	Beta-galactosidase LacA, domain 2	Beta-galactosidase LacA, domain 2	(Penicillium sp. ) [TaxId: 5081 ],	SCOPe (2.08)
A	d1xc6a1	All beta proteins	Beta-galactosidase LacA, domain 3	Beta-galactosidase LacA, domain 3	Beta-galactosidase LacA, domain 3	Beta-galactosidase LacA, domain 3	(Penicillium sp. ) [TaxId: 5081 ],	SCOPe (2.08)
A	d1xc6a5	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	(Trans)glycosidases	Glycosyl hydrolases family 35 catalytic domain	Beta-galactosidase LacA, N-terminal domain	(Penicillium sp. ) [TaxId: 5081 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	galactose-binding domain-like	8042469	3000087	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	(Trans)glycosidases	8042473	3000313	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Glycosyl hydrolase domain-like	8042472	3001528	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	beta-galactosidase laca, domain 3	8042468	3000234	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	galactose-binding domain-like	8042470	3000087	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Rhv	e1xc6A1	A: alpha arrays	X: Phage tail fiber protein trimerization domain	H: Phage tail fiber protein trimerization domain	T: Phage tail fiber protein trimerization domain	F: Rhv	ECOD (v295.2)
A	Ldl_recept_b	e1xc6A4	A: alpha arrays	X: Phage tail fiber protein trimerization domain	H: Phage tail fiber protein trimerization domain	T: Phage tail fiber protein trimerization domain	F: Ldl_recept_b	ECOD (v295.2)
A	NAD_binding_3	e1xc6A5	A: alpha arrays	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: C-terminal subdomain in Lon-related proteases catalytic domains	F: NAD_binding_3	ECOD (v295.2)
A	Vinculin	e1xc6A6	A: alpha arrays	X: DEATH domain	H: PH domain-like	T: PH domain-like	F: Vinculin	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.20.80	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycosidases	CATH (4.3.0)
A	2.102.20.10	Mainly Beta	3-layer Sandwich	beta-galactosidase, domain 2	Beta-galactosidase, domain 2	CATH (4.3.0)
A	2.60.390.10	Mainly Beta	Sandwich	beta-galactosidase, domain 3	Beta-galactosidase, domain 3	CATH (4.3.0)
A	2.60.120.260	Mainly Beta	Sandwich	Jelly Rolls	Galactose-binding domain-like	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Beta-Galactosidase	hydrolase activity, acting on glycosyl bonds beta-galactosidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity galactosidase activity binding galactose binding monosaccharide binding carbohydrate binding small molecule binding	carbohydrate metabolic process catabolic process oligosaccharide catabolic process oligosaccharide metabolic process lactose catabolic process carbohydrate catabolic process primary metabolic process disaccharide metabolic process lactose metabolic process metabolic process cellular process disaccharide catabolic process	cellular anatomical structure extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036833	Beta-galactosidase, domain 3 superfamily	Homologous Superfamily
A	IPR025300	Beta-galactosidase jelly roll domain	Domain
A	IPR031330	Glycoside hydrolase 35, catalytic domain	Domain
A	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A	IPR037110	Beta-galactosidase, domain 2 superfamily	Homologous Superfamily
A	IPR008979	Galactose-binding-like domain superfamily	Homologous Superfamily
A	IPR019801	Glycoside hydrolase, family 35, conserved site	Conserved Site
A	IPR025972	Beta-galactosidase, domain 3	Domain
A	IPR018954	Beta-galactosidase, domain 2	Domain
A	IPR001944	Glycoside hydrolase, family 35	Family

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.