Structure of the (+)-CC-1065-DNA adduct: critical role of ordered water molecules and implications for involvement of phosphate catalysis in the covalent reaction.


(+)-CC-1065 is an extremely potent antitumor agent produced by Streptomyces zelensis. The potent effects of (+)-CC-1065 and its alkylating analogues are thought to be due to the formation of a covalent adduct through N3 of adenine in DNA. It has been previously postulated, on the basis of modeling studies, that a phosphate may be involved in stabilization… (More)


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