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25EC

Crystal Structure of a Human Topoisomerase II Beta-DNA Cleavage Complex Trapped in N-gate Dissociated State

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(B)
DNA topoisomerase 2-betapolymer75786811.91UniProt (Q02880)
Pfam (PF01751)
Pfam (PF16898)
Pfam (PF00521)
Homo sapiens (human)DNA topoisomerase II,beta isozyme
2B
(D)
DNA (5'-D(P*TP*GP*CP*AP*GP*CP*TP*CP*GP*GP*CP*T)-3')polymer123654.41Nonea
3C
(E)
DNA (5'-D(P*AP*GP*CP*CP*GP*AP*GP*C)-3')polymer82436.61Nonea
4D, E, J
(B, D)
MAGNESIUM IONnon-polymer24.33Chemie (MG)
PubChem (888)
5F, G, H, I
(B)
1,2-ETHANEDIOLnon-polymer62.14Chemie (EDO)
6K, L
(B, D)
waterwater18.08Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains3
Total formula weight92902.9
Non-Polymers*Number of molecules7
Total formula weight321.2
All*Total formula weight93224.1
*Water molecules are not included.

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PDB entries from 2026-07-22

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