1LPQ

Human DNA Topoisomerase I (70 Kda) In Non-Covalent Complex With A 22 Base Pair DNA Duplex Containing an 8-oxoG Lesion


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
C [auth A]SCOP2B SuperfamilyDNA breaking-rejoining enzymes8042712 3001127 SCOP2B (2022-06-29)
C [auth A]SCOP2B SuperfamilyEukaryotic DNA topoisomerase I N-terminal DNA-binding domain-like8042713 3001820 SCOP2B (2022-06-29)
C [auth A]SCOP2B SuperfamilyEukaryotic DNA topoisomerase I dispensable insert domain8042711 3000786 SCOP2B (2022-06-29)
C [auth A]SCOP2B SuperfamilyDNA breaking-rejoining enzymes8042712 3001127 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
C [auth A]Topoisom_I_N_Ce1lpqA1 A: beta complex topologyX: Beta-strand domain in eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragment (From Topology)H: Beta-strand domain in eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragment (From Topology)T: Beta-strand domain in eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragmentF: Topoisom_I_N_CECOD (1.6)
C [auth A]Topoisom_I_Ne1lpqA2 A: alpha arraysX: HTHH: HTHT: DNA breaking-rejoining enzymesF: Topoisom_I_NECOD (1.6)
C [auth A]Topo_C_assoce1lpqA3 A: alpha arraysX: HTHH: HTHT: DNA breaking-rejoining enzymesF: Topo_C_assocECOD (1.6)
C [auth A]Topoisom_I_N_Ne1lpqA4 A: alpha arraysX: Alpha-helical domain in eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragment (From Topology)H: Alpha-helical domain in eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragment (From Topology)T: Alpha-helical domain in eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragmentF: Topoisom_I_N_NECOD (1.6)
C [auth A]KOG0981e1lpqA5 A: alpha bundlesX: Long alpha-hairpinH: Eukaryotic DNA topoisomerase I, dispensable insert domain (From Topology)T: Eukaryotic DNA topoisomerase I, dispensable insert domainF: KOG0981ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
C [auth A]PF14370C-terminal topoisomerase domain (Topo_C_assoc)C-terminal topoisomerase domain- Family
C [auth A]PF02919Eukaryotic DNA topoisomerase I, DNA binding fragment (Topoisom_I_N)Eukaryotic DNA topoisomerase I, DNA binding fragment- Family
C [auth A]PF01028Eukaryotic DNA topoisomerase I, catalytic core (Topoisom_I)Eukaryotic DNA topoisomerase I, catalytic coreTopoisomerase I promotes the relaxation of DNA superhelical tension by introducing a transient single-stranded break in duplex DNA and are vital for the processes of replication, transcription, and recombination [2].Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth B]5'-D(*AP*AP*AP*AP*AP*GP*AP*CP*TP*TP*(8OG)P*GP*AP*AP*AP*AP*AP*TP*TP*TP*TP*T)-3'---
B [auth C]5'-D(*AP*AP*AP*AP*AP*TP*TP*TP*TP*TP*CP*CP*AP*AP*GP*TP*CP*TP*TP*TP*TP*T)-3'---
C [auth A]DNA topoisomerase I