Annotations: 3RCN

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Glyco_hydro_20	e3rcnA1	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	e3rcnA2	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)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
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)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Beta-N-acetylhexosaminidase	hydrolase activity, acting on glycosyl bonds hexosaminidase activity beta-N-acetylhexosaminidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity	glycosaminoglycan metabolic process aminoglycan metabolic process carbohydrate derivative metabolic process metabolic process cellular process macromolecule metabolic process carbohydrate metabolic process primary metabolic process	cellular anatomical structure membrane

Chains	Accession	Name	Type
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	IPR025705	Beta-hexosaminidase	Family
A	IPR015882	Beta-hexosaminidase, bacterial type, N-terminal	Domain