1XSB

Structure of the nudix enzyme AP4A hydrolase from homo sapiens (E63A mutant) in complex with ATP. No ATP restraints included

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
Pharos: Disease Associations

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1xsba1	Alpha and beta proteins (a+b)	Nudix	Nudix	MutT-like	Diadenosine tetraphosphate hydrolase (Ap4A hydrolase)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d1xsba3	Artifacts	Tags	Tags	Tags	C-terminal Tags	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d1xsba2	Artifacts	Tags	Tags	Tags	N-terminal Tags	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	MutT-like	8031782	4001887	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Nudix	8044160	3000098	SCOP2 (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	NUDIX_1	e1xsbA1	A: a+b two layers	X: beta-Grasp	H: Nudix (From Topology)	T: Nudix	F: NUDIX_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.79.10	Alpha Beta	Alpha-Beta Complex	Nucleoside Triphosphate Pyrophosphohydrolase	Nucleoside Triphosphate Pyrophosphohydrolase	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00293	NUDIX domain (NUDIX)	NUDIX domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Bis(5'-nucleosyl)-tetraphosphatase	pyrophosphatase activity bis(5'-nucleosyl)-tetraphosphatase (symmetrical) activity bis(5'-nucleosyl)-tetraphosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity bis(5'-nucleosyl)-tetraphosphatase (asymmetrical) activity binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding pyrophosphatase activity bis(5'-nucleosyl)-tetraphosphatase (symmetrical) activity bis(5'-nucleosyl)-tetraphosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity bis(5'-nucleosyl)-tetraphosphatase (asymmetrical) activity binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding organic cyclic compound binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding	purine ribonucleoside monophosphate biosynthetic process nucleotide biosynthetic process organonitrogen compound biosynthetic process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process cellular nitrogen compound biosynthetic process nucleobase-containing compound metabolic process ribonucleotide biosynthetic process purine nucleoside monophosphate biosynthetic process heterocycle metabolic process purine nucleoside monophosphate metabolic process phosphate-containing compound metabolic process organic substance biosynthetic process small molecule metabolic process purine ribonucleoside monophosphate biosynthetic process nucleotide biosynthetic process organonitrogen compound biosynthetic process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process cellular nitrogen compound biosynthetic process nucleobase-containing compound metabolic process ribonucleotide biosynthetic process purine nucleoside monophosphate biosynthetic process heterocycle metabolic process purine nucleoside monophosphate metabolic process phosphate-containing compound metabolic process organic substance biosynthetic process small molecule metabolic process phosphorus metabolic process ribose phosphate biosynthetic process nucleoside phosphate metabolic process cellular metabolic process cellular nitrogen compound metabolic process primary metabolic process nucleotide metabolic process organic cyclic compound metabolic process biosynthetic process AMP biosynthetic process aromatic compound biosynthetic process organophosphate biosynthetic process organic cyclic compound biosynthetic process nucleoside phosphate biosynthetic process metabolic process purine ribonucleotide metabolic process purine nucleotide biosynthetic process ribose phosphate metabolic process cellular biosynthetic process AMP metabolic process purine ribonucleoside monophosphate metabolic process purine nucleotide metabolic process organic substance metabolic process ribonucleotide metabolic process ribonucleoside monophosphate metabolic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process nitrogen compound metabolic process nucleoside monophosphate metabolic process carbohydrate derivative biosynthetic process organonitrogen compound metabolic process nucleobase-containing compound biosynthetic process heterocycle biosynthetic process nucleoside monophosphate biosynthetic process purine-containing compound metabolic process organophosphate metabolic process cellular process ribonucleoside monophosphate biosynthetic process cellular aromatic compound metabolic process apoptotic process cell death programmed cell death purine ribonucleoside triphosphate biosynthetic process purine nucleoside triphosphate biosynthetic process ribonucleoside triphosphate biosynthetic process nucleoside triphosphate metabolic process ATP metabolic process ATP biosynthetic process purine ribonucleoside triphosphate metabolic process ribonucleoside triphosphate metabolic process purine nucleoside triphosphate metabolic process nucleoside triphosphate biosynthetic process cellular response to stimulus response to oxidative stress cellular response to chemical stimulus response to stimulus cellular response to stress response to stress response to chemical cellular response to oxidative stress cellular response to chemical stress	membrane-bounded organelle intracellular anatomical structure mitochondrion membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle mitochondrial matrix intracellular organelle lumen intracellular organelle organelle lumen organelle cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR003565	Bis(5'-nucleosyl)-tetraphosphatase	Family
A	IPR000086	NUDIX hydrolase domain	Domain
A	IPR015797	NUDIX hydrolase-like domain superfamily	Homologous Superfamily
A	IPR020084	NUDIX hydrolase, conserved site	Conserved Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P50583	breast cancer breast carcinoma lung cancer Mammary Neoplasms, Human osteosarcoma idiopathic scoliosis psoriasis

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.