6K8N | pdb_00006k8n

Crystal structure of the Sulfolobus solfataricus topoisomerase III

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Topoisom_bac_2nd	e6k8nB2	A: beta barrels	X: LigT-like	H: Prokaryotic type I DNA topoisomerase beta-barrel domain (From Topology)	T: Prokaryotic type I DNA topoisomerase beta-barrel domain	F: Topoisom_bac_2nd	ECOD (1.6)
B	Topoisom_bac_3rd	e6k8nB1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Topoisom_bac_3rd	ECOD (1.6)
B	Topoisom_bac_1st_1	e6k8nB3	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Topoisom_bac_1st_1	ECOD (1.6)
B	Toprim	e6k8nB4	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: Toprim domain	F: Toprim	ECOD (1.6)
B	F_UNCLASSIFIED	e6k8nB5	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: F_UNCLASSIFIED	ECOD (1.6)
A	Topoisom_bac_2nd	e6k8nA4	A: beta barrels	X: LigT-like	H: Prokaryotic type I DNA topoisomerase beta-barrel domain (From Topology)	T: Prokaryotic type I DNA topoisomerase beta-barrel domain	F: Topoisom_bac_2nd	ECOD (1.6)
A	Topoisom_bac_3rd	e6k8nA3	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Topoisom_bac_3rd	ECOD (1.6)
A	Topoisom_bac_1st_1	e6k8nA1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Topoisom_bac_1st_1	ECOD (1.6)
A	Toprim	e6k8nA2	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: Toprim domain	F: Toprim	ECOD (1.6)
A	F_UNCLASSIFIED	e6k8nA5	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: F_UNCLASSIFIED	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF01131	DNA topoisomerase (Topoisom_bac)	DNA topoisomerase	-	Family
A, B, C, D	PF01751	Toprim domain (Toprim)	Toprim domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	topoisomerase III	DNA binding binding nucleic acid binding nucleic acid conformation isomerase activity isomerase activity DNA topoisomerase type I (single strand cut, ATP-independent) activity catalytic activity, acting on DNA DNA topoisomerase activity catalytic activity, acting on a nucleic acid catalytic activity macromolecular conformation isomerase activity cation binding ion binding metal ion binding DNA binding binding nucleic acid binding nucleic acid conformation isomerase activity isomerase activity DNA topoisomerase type I (single strand cut, ATP-independent) activity catalytic activity, acting on DNA DNA topoisomerase activity catalytic activity, acting on a nucleic acid catalytic activity macromolecular conformation isomerase activity cation binding ion binding metal ion binding small molecule binding	cellular response to stimulus response to stimulus primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process cellular response to stress DNA damage response response to stress metabolic process cellular process macromolecule metabolic process DNA repair chromosome organization cellular response to stimulus response to stimulus primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process cellular response to stress DNA damage response response to stress metabolic process cellular process macromolecule metabolic process DNA repair chromosome organization DNA conformation change cellular component organization DNA topological change organelle organization cellular component organization or biogenesis DNA recombination	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR013497	DNA topoisomerase, type IA, central	Domain
A, B, C, D	IPR003602	DNA topoisomerase, type IA, DNA-binding domain	Domain
A, B, C, D	IPR023405	DNA topoisomerase, type IA, core domain	Homologous Superfamily
A, B, C, D	IPR013825	DNA topoisomerase, type IA, central region, subdomain 2	Homologous Superfamily
A, B, C, D	IPR003601	DNA topoisomerase, type IA, domain 2	Domain
A, B, C, D	IPR000380	DNA topoisomerase, type IA	Family
A, B, C, D	IPR013826	DNA topoisomerase, type IA, central region, subdomain 3	Homologous Superfamily
A, B, C, D	IPR006171	TOPRIM domain	Domain
A, B, C, D	IPR023406	DNA topoisomerase, type IA, active site	Active Site
A, B, C, D	IPR034144	DNA topoisomerase 3-like, TOPRIM domain	Domain
A, B, C, D	IPR013824	DNA topoisomerase, type IA, central region, subdomain 1	Homologous Superfamily
A, B, C, D	IPR005739	DNA topoisomerase I, archeal-type	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.