Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ADNA_topoisoIV_1ste3qx3A1 A: alpha arraysX: HTHH: HTHT: wingedF: DNA_topoisoIV_1stECOD (1.6)
ADNA_topoisoIV_3rde3qx3A13 A: alpha bundlesX: alpha-helical domain in type II DNA topoisomerase (From Topology)H: alpha-helical domain in type II DNA topoisomerase (From Topology)T: alpha-helical domain in type II DNA topoisomeraseF: DNA_topoisoIV_3rdECOD (1.6)
ADNA_topoisoIV_2nd_1e3qx3A12 A: a+b two layersX: a+b domain in type II DNA topoisomerase (From Topology)H: a+b domain in type II DNA topoisomerase (From Topology)T: a+b domain in type II DNA topoisomeraseF: DNA_topoisoIV_2nd_1ECOD (1.6)
ADNA_gyraseB_Ce3qx3A11 A: a/b three-layered sandwichesX: HAD domain-likeH: HAD domain-relatedT: Toprim domainF: DNA_gyraseB_CECOD (1.6)
BDNA_topoisoIV_1ste3qx3B6 A: alpha arraysX: HTHH: HTHT: wingedF: DNA_topoisoIV_1stECOD (1.6)
BDNA_topoisoIV_3rde3qx3B5 A: alpha bundlesX: alpha-helical domain in type II DNA topoisomerase (From Topology)H: alpha-helical domain in type II DNA topoisomerase (From Topology)T: alpha-helical domain in type II DNA topoisomeraseF: DNA_topoisoIV_3rdECOD (1.6)
BDNA_topoisoIV_2nd_1e3qx3B7 A: a+b two layersX: a+b domain in type II DNA topoisomerase (From Topology)H: a+b domain in type II DNA topoisomerase (From Topology)T: a+b domain in type II DNA topoisomeraseF: DNA_topoisoIV_2nd_1ECOD (1.6)
BDNA_gyraseB_Ce3qx3B8 A: a/b three-layered sandwichesX: HAD domain-likeH: HAD domain-relatedT: Toprim domainF: DNA_gyraseB_CECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.40.50.670 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold CATH (4.3.0)
A3.90.199.10 Alpha Beta Alpha-Beta Complex Topoisomerase II domain 5CATH (4.3.0)
A3.30.1360.40 Alpha Beta 2-Layer Sandwich Gyrase A domain 2CATH (4.3.0)
A1.10.268.10 Mainly Alpha Orthogonal Bundle Topoisomerase domain 3CATH (4.3.0)
B3.40.50.670 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold CATH (4.3.0)
B3.90.199.10 Alpha Beta Alpha-Beta Complex Topoisomerase II domain 5CATH (4.3.0)
B3.30.1360.40 Alpha Beta 2-Layer Sandwich Gyrase A domain 2CATH (4.3.0)
B1.10.268.10 Mainly Alpha Orthogonal Bundle Topoisomerase domain 3CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF01751Toprim domain (Toprim)Toprim domain- Family
A, B
PF16898C-terminal associated domain of TOPRIM (TOPRIM_C)C-terminal associated domain of TOPRIM- Family
A, B
PF00521DNA gyrase/topoisomerase IV, subunit A (DNA_topoisoIV)DNA gyrase/topoisomerase IV, subunit A- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
DNA topoisomerase 2-beta
C, E
DNA (5'-D(P*AP*GP*CP*CP*GP*AP*GP*C)-3')---
D, F
DNA (5'-D(P*TP*GP*CP*AP*GP*CP*TP*CP*GP*GP*CP*T)-3')---