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1T8I

Human DNA Topoisomerase I (70 Kda) In Complex With The Poison Camptothecin and Covalent Complex With A 22 Base Pair DNA Duplex

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(B)
5'-D(*AP*AP*AP*AP*AP*GP*AP*CP*TP*T)-3'polymer103061.11
2B
(C)
5'-D(*(TGP)P*GP*AP*AP*AP*AP*AP*TP*TP*TP*TP*T)-3'polymer123716.51
3C
(D)
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'polymer226690.41
4D
(A)
DNA topoisomerase Ipolymer59270248.01UniProt (P11387)
Pfam (PF02919)
Pfam (PF01028)
Pfam (PF14370)
Homo sapiens (human)
5E
(D)
4-ETHYL-4-HYDROXY-1,12-DIHYDRO-4H-2-OXA-6,12A-DIAZA-DIBENZO[B,H]FLUORENE-3,13-DIONEnon-polymer348.41Chemie (EHD)
Sequence modifications
A: 174 - 765 (UniProt: P11387)
PDBExternal DatabaseDetails
Ptr 723Tyr 723modified residue
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains4
Total formula weight83716.0
Non-Polymers*Number of molecules1
Total formula weight348.4
All*Total formula weight84064.3
*Water molecules are not included.

250059

PDB entries from 2026-03-04

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