4QEZ

Crystal structure of 5'-methylthioadenosine/S-adenosylhomocysteine nucleosidase from Bacillus anthracis

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth B]	d4qezb1	Alpha and beta proteins (a/b)	Phosphorylase/hydrolase-like	Purine and uridine phosphorylases	automated matches	automated matches	anthrax, anthrax bacterium (Bacillus anthracis ) [TaxId: 1392 ],	SCOPe (2.08)
A [auth B]	d4qezb2	Artifacts	Tags	Tags	Tags	C-terminal Tags	anthrax, anthrax bacterium (Bacillus anthracis ) [TaxId: 1392 ],	SCOPe (2.08)
B [auth A]	d4qeza_	Alpha and beta proteins (a/b)	Phosphorylase/hydrolase-like	Purine and uridine phosphorylases	automated matches	automated matches	anthrax, anthrax bacterium (Bacillus anthracis ) [TaxId: 1392 ],	SCOPe (2.08)
C	d4qezc1	Alpha and beta proteins (a/b)	Phosphorylase/hydrolase-like	Purine and uridine phosphorylases	automated matches	automated matches	anthrax, anthrax bacterium (Bacillus anthracis ) [TaxId: 1392 ],	SCOPe (2.08)
C	d4qezc2	Artifacts	Tags	Tags	Tags	C-terminal Tags	anthrax, anthrax bacterium (Bacillus anthracis ) [TaxId: 1392 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth B]	SCOP2 Family	Purine and uridine phosphorylases	8100043	4000573	SCOP2 (2022-06-29)
A [auth B]	SCOP2 Superfamily	Purine and uridine phosphorylases	8100044	3000626	SCOP2 (2022-06-29)
B [auth A]	SCOP2B Superfamily	Purine and uridine phosphorylases	8100044	3000626	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Purine and uridine phosphorylases	8100044	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)
A [auth B]	PNP_UDP_1	e4qezB1	A: a/b three-layered sandwiches	X: Phosphorylase/hydrolase-like	H: Peptidyl-tRNA hydrolase-like (From Topology)	T: Peptidyl-tRNA hydrolase-like	F: PNP_UDP_1	ECOD (1.6)
B [auth A]	PNP_UDP_1	e4qezA1	A: a/b three-layered sandwiches	X: Phosphorylase/hydrolase-like	H: Peptidyl-tRNA hydrolase-like (From Topology)	T: Peptidyl-tRNA hydrolase-like	F: PNP_UDP_1	ECOD (1.6)
C	PNP_UDP_1	e4qezC1	A: a/b three-layered sandwiches	X: Phosphorylase/hydrolase-like	H: Peptidyl-tRNA hydrolase-like (From Topology)	T: Peptidyl-tRNA hydrolase-like	F: PNP_UDP_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

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

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B], B [auth A], 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 [auth B], B [auth A], C	5'-methylthioadenosine/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	oxoacid metabolic process cellular biosynthetic process sulfur amino acid metabolic process aspartate family amino acid biosynthetic process aspartate family amino acid metabolic process amino acid metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process small molecule metabolic process sulfur compound metabolic process L-methionine biosynthetic process cellular metabolic compound salvage oxoacid metabolic process cellular biosynthetic process sulfur amino acid metabolic process aspartate family amino acid biosynthetic process aspartate family amino acid metabolic process amino acid metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process small molecule metabolic process sulfur compound metabolic process L-methionine biosynthetic process cellular metabolic compound salvage methionine biosynthetic process small molecule biosynthetic process cellular metabolic process carboxylic acid metabolic process L-amino acid biosynthetic process primary metabolic process methionine metabolic process L-amino acid metabolic process proteinogenic amino acid metabolic process amino acid salvage amino acid biosynthetic process sulfur compound biosynthetic process biosynthetic process L-methionine salvage from methylthioadenosine proteinogenic amino acid biosynthetic process metabolic process cellular process L-methionine salvage sulfur amino acid biosynthetic process alpha-amino acid biosynthetic process carbohydrate derivative catabolic process glycosyl compound metabolic process catabolic process carbohydrate derivative metabolic process glycosyl compound catabolic process nucleoside metabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process nucleobase-containing small molecule catabolic process nucleobase-containing small molecule metabolic process nucleoside catabolic process small molecule catabolic process S-adenosylmethionine metabolic process S-adenosylmethionine cycle L-methionine salvage from S-adenosylmethionine	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B], B [auth A], C	IPR035994	Nucleoside phosphorylase superfamily	Homologous Superfamily
A [auth B], B [auth A], C	IPR000845	Nucleoside phosphorylase domain	Domain
A [auth B], B [auth A], C	IPR010049	MTA/SAH nucleosidase	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.