Annotations: 5BU9

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF00933	e5bu9A1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: PF00933	ECOD (1.6)
B	PF00933	e5bu9B1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: PF00933	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.20.300	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycoside hydrolase, family 3, N-terminal domain	CATH (4.3.0)
B	3.20.20.300	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycoside hydrolase, family 3, N-terminal domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00933	Glycosyl hydrolase family 3 N terminal domain (Glyco_hydro_3)	Glycosyl hydrolase family 3 N terminal domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Beta-N-acetylhexosaminidase	hydrolase activity, acting on glycosyl bonds N-acetyl-beta-D-galactosaminidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity hexosaminidase activity beta-N-acetylhexosaminidase activity	carbohydrate metabolic process organic substance metabolic process primary metabolic process metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR001764	Glycoside hydrolase, family 3, N-terminal	Domain
A, B	IPR036962	Glycoside hydrolase, family 3, N-terminal domain superfamily	Homologous Superfamily
A, B	IPR019800	Glycoside hydrolase, family 3, active site	Active Site
A, B	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily

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 R01GM133198.