Annotations: 2YA4

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Radical_SAM	e2ya4B1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: Radical_SAM	ECOD (v294.1)
A	Tautomerase, Tautomerase_2	e2ya4A1	A: a/b three-layered sandwiches	X: Glucose permease domain IIB-like	H: eIF1-like	T: eIF1-like	F: Tautomerase, Tautomerase_2	ECOD (v294.1)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.120.10.10	Mainly Beta	6 Propeller	Neuraminidase		CATH (4.3.0)
B	2.40.220.10	Mainly Beta	Beta Barrel	Intramolecular trans-sialidase	domain 3	CATH (4.3.0)
A	2.120.10.10	Mainly Beta	6 Propeller	Neuraminidase		CATH (4.3.0)
A	2.40.220.10	Mainly Beta	Beta Barrel	Intramolecular trans-sialidase	domain 3	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	NEURAMINIDASE A	hydrolase activity, acting on glycosyl bonds alpha-sialidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity exo-alpha-sialidase activity catalytic activity	carbohydrate metabolic process catabolic process oligosaccharide catabolic process oligosaccharide metabolic process carbohydrate catabolic process primary metabolic process metabolic process cellular process sphingolipid catabolic process ceramide metabolic process ganglioside catabolic process carbohydrate derivative catabolic process glycosphingolipid catabolic process lipid catabolic process carbohydrate metabolic process catabolic process oligosaccharide catabolic process oligosaccharide metabolic process carbohydrate catabolic process primary metabolic process metabolic process cellular process sphingolipid catabolic process ceramide metabolic process ganglioside catabolic process carbohydrate derivative catabolic process glycosphingolipid catabolic process lipid catabolic process glycolipid metabolic process glycosphingolipid metabolic process liposaccharide metabolic process carbohydrate derivative metabolic process sphingolipid metabolic process glycolipid catabolic process ceramide catabolic process ganglioside metabolic process lipid metabolic process	cellular anatomical structure membrane intracellular anatomical structure cytoplasm

Chains	Accession	Name	Type
A, B	IPR001791	Laminin G domain	Domain
A, B	IPR011040	Sialidase	Domain
A, B	IPR049964	Sialidase A repeat	Repeat
A, B	IPR019931	LPXTG cell wall anchor motif	Conserved Site
A, B	IPR023364	Trans-sialidase, domain 3	Homologous Superfamily
A, B	IPR036278	Sialidase superfamily	Homologous Superfamily
A, B	IPR013320	Concanavalin A-like lectin/glucanase domain superfamily	Homologous Superfamily
A, B	IPR004124	Glycoside hydrolase, family 33, N-terminal	Domain
A, B	IPR005877	YSIRK Gram-positive signal peptide	Domain
A, B	IPR026856	Sialidase family	Family