Annotations: 7ZSQ

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C	SCOP2B Superfamily	Purine and uridine phosphorylases	8032547	3000626	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Purine and uridine phosphorylases	8032547	3000626	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Purine and uridine phosphorylases	8032547	3000626	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)
C	Iso_dh	e7zsqC1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Iso_dh	ECOD (v294.1)
B	Iso_dh	e7zsqB1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Iso_dh	ECOD (v294.1)
A	Iso_dh	e7zsqA1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Iso_dh	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF01048	Phosphorylase superfamily (PNP_UDP_1)	Phosphorylase superfamily	Members of this family include: purine nucleoside phosphorylase (PNP) Uridine phosphorylase (UdRPase) 5'-methylthioadenosine phosphorylase (MTA phosphorylase)	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Purine nucleoside phosphorylase	pentosyltransferase activity glycosyltransferase activity purine-nucleoside phosphorylase activity transferase activity catalytic activity	catabolic process deoxyribonucleoside metabolic process purine nucleoside catabolic process carbohydrate derivative metabolic process purine deoxyribonucleoside catabolic process nucleobase-containing compound metabolic process deoxyguanosine catabolic process nucleobase-containing small molecule metabolic process purine deoxyribonucleoside metabolic process small molecule metabolic process carbohydrate derivative catabolic process primary metabolic process glycosyl compound catabolic process purine-containing compound catabolic process catabolic process deoxyribonucleoside metabolic process purine nucleoside catabolic process carbohydrate derivative metabolic process purine deoxyribonucleoside catabolic process nucleobase-containing compound metabolic process deoxyguanosine catabolic process nucleobase-containing small molecule metabolic process purine deoxyribonucleoside metabolic process small molecule metabolic process carbohydrate derivative catabolic process primary metabolic process glycosyl compound catabolic process purine-containing compound catabolic process nucleoside metabolic process nucleobase-containing compound catabolic process purine-containing compound metabolic process nucleobase-containing small molecule catabolic process nucleoside catabolic process deoxyribonucleoside catabolic process metabolic process cellular process small molecule catabolic process purine nucleoside metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR035994	Nucleoside phosphorylase superfamily	Homologous Superfamily
A, B, C	IPR011268	Purine nucleoside phosphorylase	Family
A, B, C	IPR018099	Purine phosphorylase, family 2, conserved site	Conserved Site
A, B, C	IPR000845	Nucleoside phosphorylase domain	Domain
A, B, C	IPR011269	Putative purine nucleotide phosphorylase	Family

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.