Annotations: 1BHG

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1bhga1	All beta proteins	Immunoglobulin-like beta-sandwich	beta-Galactosidase/glucuronidase domain	beta-Galactosidase/glucuronidase domain	beta-Glucuronidase	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d1bhga2	All beta proteins	Galactose-binding domain-like	Galactose-binding domain-like	beta-Galactosidase/glucuronidase, N-terminal domain	beta-Glucuronidase	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d1bhga3	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	(Trans)glycosidases	beta-glycanases	beta-Glucuronidase, domain 3	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1bhgb1	All beta proteins	Immunoglobulin-like beta-sandwich	beta-Galactosidase/glucuronidase domain	beta-Galactosidase/glucuronidase domain	beta-Glucuronidase	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1bhgb2	All beta proteins	Galactose-binding domain-like	Galactose-binding domain-like	beta-Galactosidase/glucuronidase, N-terminal domain	beta-Glucuronidase	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1bhgb3	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	(Trans)glycosidases	beta-glycanases	beta-Glucuronidase, domain 3	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	beta-Galactosidase N-terminal domain-like	8028771	4002476	SCOP2 (2022-06-29)
A	SCOP2 Family	beta-glycanases	8031006	4003164	SCOP2 (2022-06-29)
A	SCOP2 Family	beta-Galactosidase/glucuronidase domain	8055212	4007531	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	galactose-binding domain-like	8041150	3000087	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	(Trans)glycosidases	8043384	3000313	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	beta-Galactosidase/glucuronidase domain-like	8055213	3002047	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	beta-Galactosidase/glucuronidase domain-like	8055213	3002047	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	galactose-binding domain-like	8041150	3000087	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	(Trans)glycosidases	8043384	3000313	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	Glyco_hydro_2_N	e1bhgA1	A: beta sandwiches	X: jelly-roll	H: Concanavalin A-like	T: Galactose-binding domain-like	F: Glyco_hydro_2_N	ECOD (1.6)
A	Glyco_hydro_2	e1bhgA2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Glyco_hydro_2	ECOD (1.6)
A	Glyco_hydro_2_C	e1bhgA3	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Glyco_hydro_2_C	ECOD (1.6)
B	Glyco_hydro_2_N	e1bhgB1	A: beta sandwiches	X: jelly-roll	H: Concanavalin A-like	T: Galactose-binding domain-like	F: Glyco_hydro_2_N	ECOD (1.6)
B	Glyco_hydro_2	e1bhgB2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Glyco_hydro_2	ECOD (1.6)
B	Glyco_hydro_2_C	e1bhgB3	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Glyco_hydro_2_C	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.120.260	Mainly Beta	Sandwich	Jelly Rolls	Galactose-binding domain-like	CATH (4.3.0)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A	3.20.20.80	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycosidases	CATH (4.3.0)
B	2.60.120.260	Mainly Beta	Sandwich	Jelly Rolls	Galactose-binding domain-like	CATH (4.3.0)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B	3.20.20.80	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycosidases	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02836	Glycosyl hydrolases family 2, TIM barrel domain (Glyco_hydro_2_C)	Glycosyl hydrolases family 2, TIM barrel domain	This family contains beta-galactosidase, beta-mannosidase and beta-glucuronidase activities.	Domain
A, B	PF00703	Glycosyl hydrolases family 2 (Glyco_hydro_2)	Glycosyl hydrolases family 2	This family contains beta-galactosidase, beta-mannosidase and beta-glucuronidase activities.	Domain
A, B	PF02837	Glycosyl hydrolases family 2, sugar binding domain (Glyco_hydro_2_N)	Glycosyl hydrolases family 2, sugar binding domain	This family contains beta-galactosidase, beta-mannosidase and beta-glucuronidase activities and has a jelly-roll fold. The domain binds the sugar moiety during the sugar-hydrolysis reaction.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	BETA-GLUCURONIDASE	protein binding binding protein domain specific binding signaling receptor binding hydrolase activity, acting on glycosyl bonds hydrolase activity, hydrolyzing O-glycosyl compounds beta-glucuronidase activity hydrolase activity catalytic activity carbohydrate binding	carbohydrate derivative catabolic process catabolic process glycosaminoglycan metabolic process carbohydrate derivative metabolic process aminoglycan catabolic process macromolecule catabolic process glycosaminoglycan catabolic process aminoglycan metabolic process metabolic process cellular process macromolecule metabolic process carbohydrate metabolic process primary metabolic process mucopolysaccharide metabolic process carbohydrate derivative catabolic process catabolic process glycosaminoglycan metabolic process carbohydrate derivative metabolic process aminoglycan catabolic process macromolecule catabolic process glycosaminoglycan catabolic process aminoglycan metabolic process metabolic process cellular process macromolecule metabolic process carbohydrate metabolic process primary metabolic process mucopolysaccharide metabolic process chondroitin sulfate proteoglycan metabolic process glycoprotein metabolic process cellular catabolic process sulfur compound catabolic process chondroitin sulfate catabolic process sulfur compound metabolic process protein metabolic process proteoglycan metabolic process chondroitin sulfate metabolic process glycoprotein catabolic process protein catabolic process heparan sulfate proteoglycan catabolic process proteoglycan catabolic process hyaluronan catabolic process hyaluronan metabolic process	cellular anatomical structure membrane membrane-bounded organelle intracellular anatomical structure lytic vacuole membrane-enclosed lumen vacuolar lumen vacuole intracellular membrane-bounded organelle lysosomal lumen intracellular organelle lumen intracellular organelle organelle lumen organelle cellular anatomical structure membrane membrane-bounded organelle intracellular anatomical structure lytic vacuole membrane-enclosed lumen vacuolar lumen vacuole intracellular membrane-bounded organelle lysosomal lumen intracellular organelle lumen intracellular organelle organelle lumen organelle cytoplasm lysosome extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular space vesicle extracellular membrane-bounded organelle intracellular vesicle cytoplasmic vesicle lumen endomembrane system cytoplasmic vesicle vesicle lumen azurophil granule secretory granule lumen azurophil granule lumen secretory granule primary lysosome secretory vesicle ficolin-1-rich granule ficolin-1-rich granule lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR008979	Galactose-binding-like domain superfamily	Homologous Superfamily
A, B	IPR006102	Glycoside hydrolase, family 2, immunoglobulin-like beta-sandwich	Domain
A, B	IPR006104	Glycosyl hydrolases family 2, sugar binding domain	Domain
A, B	IPR023232	Glycoside hydrolase, family 2, active site	Active Site
A, B	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A, B	IPR006101	Glycoside hydrolase, family 2	Family
A, B	IPR036156	Beta-Galactosidase/glucuronidase domain superfamily	Homologous Superfamily
A, B	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A, B	IPR006103	Glycoside hydrolase family 2, catalytic domain	Domain
A, B	IPR023230	Glycoside hydrolase, family 2, conserved site	Conserved Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: P08236	mucopolysaccharidosis type 7 mucopolysaccharidosis proteinuria nervous system disorder ovarian cancer astrocytic tumor esophageal adenocarcinoma hydrops fetalis inborn errors of metabolism lysosomal storage disease non-immune hydrops fetalis pancreatic intraductal papillary-mucinous carcinoma dermatomyositis glioblastoma hydrops fetalis, idiopathic mucopolysaccharidosis type 7 mucopolysaccharidosis proteinuria nervous system disorder ovarian cancer astrocytic tumor esophageal adenocarcinoma hydrops fetalis inborn errors of metabolism lysosomal storage disease non-immune hydrops fetalis pancreatic intraductal papillary-mucinous carcinoma dermatomyositis glioblastoma hydrops fetalis, idiopathic intellectual disability malignant glioma osteosarcoma plasma cell myeloma Duchenne muscular dystrophy hydrocephalus hypertrophic cardiomyopathy juvenile dermatomyositis medulloblastoma

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	beta-glucuronidase M-CSA #423	Catalyses the stepwise degradation of beta-D-glucuronic acid residues from the non-reducing termini of glycosaminoglycans (hyaluronic acid, heparan sulfate, dermatan sulfate, and chondroitin srulfate) to yield their respective glycosidase and hydrolysis results in release of alcohols and free glucuronic acid.	Defined by 4 residues: ASP:A-187 [auth A-207]GLU:A-431 [auth A-451]TYR:A-484 [auth A-504]GLU:A-520 [auth A-540] \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.2.1.31 (PDB Primary Data) Search M-CSA Motif + EC 3.2.1.31

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.