Annotations: 6PWY

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	IstB_IS21	e6pwyA01	A: a/b three-layered sandwiches	X: Rossmann-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: IstB_IS21	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C [auth D], D [auth C]	PF01966	HD domain (HD)	HD domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C [auth D], D [auth C]	ZK177.8	phosphoric ester hydrolase activity triphosphoric monoester hydrolase activity dGTPase activity hydrolase activity, acting on ester bonds hydrolase activity catalytic activity identical protein binding protein binding binding protein homodimerization activity protein dimerization activity deoxynucleoside triphosphate hydrolase activity guanyl nucleotide binding GTP binding phosphoric ester hydrolase activity triphosphoric monoester hydrolase activity dGTPase activity hydrolase activity, acting on ester bonds hydrolase activity catalytic activity identical protein binding protein binding binding protein homodimerization activity protein dimerization activity deoxynucleoside triphosphate hydrolase activity guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding cation binding metal ion binding	catabolic process nucleoside triphosphate catabolic process purine nucleoside triphosphate catabolic process purine deoxyribonucleoside triphosphate metabolic process carbohydrate derivative metabolic process organophosphate catabolic process dGTP metabolic process nucleoside phosphate catabolic process deoxyribose phosphate catabolic process nucleobase-containing compound metabolic process purine nucleotide metabolic process purine deoxyribonucleoside triphosphate catabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process catabolic process nucleoside triphosphate catabolic process purine nucleoside triphosphate catabolic process purine deoxyribonucleoside triphosphate metabolic process carbohydrate derivative metabolic process organophosphate catabolic process dGTP metabolic process nucleoside phosphate catabolic process deoxyribose phosphate catabolic process nucleobase-containing compound metabolic process purine nucleotide metabolic process purine deoxyribonucleoside triphosphate catabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process small molecule metabolic process phosphorus metabolic process nucleotide catabolic process deoxyribonucleoside triphosphate metabolic process nucleoside phosphate metabolic process purine nucleoside triphosphate metabolic process purine nucleotide catabolic process purine deoxyribonucleotide catabolic process carbohydrate derivative catabolic process 2'-deoxyribonucleotide metabolic process primary metabolic process purine-containing compound catabolic process deoxyribonucleoside triphosphate catabolic process nucleotide metabolic process purine-containing compound metabolic process nucleobase-containing compound catabolic process organophosphate metabolic process purine deoxyribonucleotide metabolic process metabolic process cellular process nucleoside triphosphate metabolic process dGTP catabolic process deoxyribonucleotide catabolic process deoxyribonucleotide metabolic process	intracellular organelle cellular anatomical structure intracellular anatomical structure organelle membraneless organelle intracellular membraneless organelle chromosome membrane-bounded organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C [auth D], D [auth C]	IPR003607	HD/PDEase domain	Domain
A, B, C [auth D], D [auth C]	IPR050135	Deoxyguanosinetriphosphate triphosphohydrolase-like	Family
A, B, C [auth D], D [auth C]	IPR006674	HD 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.