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Human topoisomerase IIbeta in complex with DNA and etoposide

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Crystal structure of a large fragment of human type II topoisomerases (TOP2) complexed to DNA and to the anticancer drug etoposide to reveal structural details of drug-induced stabilization of a cleavage complex. The interplay between the protein, the DNA, and the drug explains the structure-activity relations of etoposide derivatives and the molecular basis of drug-resistant mutations. [1]

References

  1. Wu CC, Li TK, Farh L, Lin LY, Lin TS, Yu YJ, Yen TJ, Chiang CW, Chan NL. Structural basis of type II topoisomerase inhibition by the anticancer drug etoposide. Science. 2011 Jul 22;333(6041):459-62. PMID:21778401 doi:10.1126/science.1204117
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