Annotations: 4PR3

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Hemagglutinin	e4pr3B1	A: alpha arrays	X: Cysteine proteinases-like	H: SH3	T: SH3	F: Hemagglutinin	ECOD (v295)
A	QueF	e4pr3A1	A: alpha arrays	X: jelly-roll	H: Galactose-binding domain-like	T: Galactose-binding domain-like	F: QueF	ECOD (v295)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.50.1580	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nucleoside phosphorylase domain	CATH (4.3.0)
A	3.40.50.1580	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nucleoside phosphorylase domain	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	5'-methylthioadenosine nucleosidase / s-adenosylhomocysteine nucleosidase	hydrolase activity, acting on glycosyl bonds purine nucleosidase activity hydrolase activity methylthioadenosine nucleosidase activity hydrolase activity, hydrolyzing N-glycosyl compounds catalytic activity adenosylhomocysteine nucleosidase activity	nucleobase-containing compound metabolic process nucleobase-containing small molecule metabolic process carbohydrate derivative metabolic process small molecule metabolic process metabolic process cellular process primary metabolic process nucleoside metabolic process	-

Chains	Accession	Name	Type
A, B	IPR010050	5-methylthioadenosine/S-adenosylhomocysteine nucleosidase, putative	Family
A, B	IPR035994	Nucleoside phosphorylase superfamily	Homologous Superfamily
A, B	IPR000845	Nucleoside phosphorylase domain	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.

4PR3 | pdb_00004pr3