1QBB | pdb_00001qbb

BACTERIAL CHITOBIASE COMPLEXED WITH CHITOBIOSE (DINAG)

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	d1qbba1	All beta proteins	Immunoglobulin-like beta-sandwich	E set domains	E-set domains of sugar-utilizing enzymes	Bacterial chitobiase (N-acetyl-beta-glucoseaminidase), C-terminal domain	(Serratia marcescens ) [TaxId: 615 ],	SCOPe (2.08)
A	d1qbba2	All beta proteins	Common fold of diphtheria toxin/transcription factors/cytochrome f	Carbohydrate-binding domain	Bacterial chitobiase, n-terminal domain	Bacterial chitobiase, n-terminal domain	(Serratia marcescens ) [TaxId: 615 ],	SCOPe (2.08)
A	d1qbba3	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	(Trans)glycosidases	beta-N-acetylhexosaminidase catalytic domain	Bacterial chitobiase (beta-N-acetylhexosaminidase)	(Serratia marcescens ) [TaxId: 615 ],	SCOPe (2.08)
A	d1qbba4	Alpha and beta proteins (a+b)	Zincin-like	beta-N-acetylhexosaminidase-like domain	beta-N-acetylhexosaminidase domain	Bacterial chitobiase, Domain 2	(Serratia marcescens ) [TaxId: 615 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	E set domains	8054903	3000070	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	beta-N-acetylhexosaminidase-like domain	8035560	3000192	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	(Trans)glycosidases	8043392	3000313	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Carbohydrate-binding domain	8040191	3000706	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	CHB_HEX_C	e1qbbA1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: CHB_HEX_C	ECOD (1.6)
A	CHB_HEX	e1qbbA2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Common fold of diphtheria toxin/transcription factors/cytochrome f	F: CHB_HEX	ECOD (1.6)
A	Glyco_hydro_20	e1qbbA3	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Glyco_hydro_20	ECOD (1.6)
A	Glyco_hydro_20b	e1qbbA4	A: mixed a+b and a/b	X: Zincin-like	H: beta-N-acetylhexosaminidase-like domain (From Topology)	T: beta-N-acetylhexosaminidase-like domain	F: Glyco_hydro_20b	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.290	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.2.0)
A	3.30.379.10	Alpha Beta	2-Layer Sandwich	Chitobiase	domain 2	CATH (4.2.0)
A	3.20.20.80	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycosidases	CATH (4.2.0)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.2.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	CHITOBIASE	binding polysaccharide binding carbohydrate binding hydrolase activity, acting on glycosyl bonds hexosaminidase activity beta-N-acetylhexosaminidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity	carbohydrate derivative catabolic process catabolic process carbohydrate derivative metabolic process chitin metabolic process aminoglycan catabolic process macromolecule catabolic process glucosamine-containing compound catabolic process amino sugar catabolic process aminoglycan metabolic process amino sugar metabolic process metabolic process cellular process macromolecule metabolic process chitin catabolic process carbohydrate derivative catabolic process catabolic process carbohydrate derivative metabolic process chitin metabolic process aminoglycan catabolic process macromolecule catabolic process glucosamine-containing compound catabolic process amino sugar catabolic process aminoglycan metabolic process amino sugar metabolic process metabolic process cellular process macromolecule metabolic process chitin catabolic process glycosaminoglycan metabolic process carbohydrate metabolic process polysaccharide metabolic process polysaccharide catabolic process carbohydrate catabolic process primary metabolic process	cellular anatomical structure membrane periplasmic space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR012291	CBM2, carbohydrate-binding domain superfamily	Homologous Superfamily
A	IPR004866	Chitobiase/beta-hexosaminidases, N-terminal domain	Domain
A	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A	IPR029018	Beta-hexosaminidase-like, domain 2	Homologous Superfamily
A	IPR015883	Glycoside hydrolase family 20, catalytic domain	Domain
A	IPR008965	CBM2/CBM3, carbohydrate-binding domain superfamily	Homologous Superfamily
A	IPR004867	Chitobiase C-terminal domain	Domain
A	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A	IPR014756	Immunoglobulin E-set	Homologous Superfamily
A	IPR025705	Beta-hexosaminidase	Family
A	IPR015882	Beta-hexosaminidase, bacterial type, N-terminal	Domain

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.