Stereoselectivity, sequence specificity and mechanism of action of the azinomycin epoxide

被引:18
作者
David-Cordonnier, Marie-Helene
Casely-Hayford, Maxwell
Kouach, Mostafa
Briand, Gilbert
Patterson, Laurence H.
Bailly, Christian
Searcey, Mark
机构
[1] Univ London, Sch Pharm, London WC1N 1AX, England
[2] INSERM, U 814, IRCL, F-59045 Lille, France
[3] Univ Lille 2, Spectrometrie Masse Lab, F-59045 Lille, France
[4] Univ Bradford, Inst Canc Therapeut, Bradford BD7 1DP, W Yorkshire, England
关键词
antitumor agents; azinomycin; depurination; DNA cleavage; natural products;
D O I
10.1002/cbic.200600244
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 [生物化学与分子生物学]; 081704 [应用化学];
摘要
Not like the rest. In this study we show that the four diastereomers of the azinomycin epoxide (1) have different sequence selectivities, while the natural product appears to exert its effects through reversible N7 alkylation of guanine followed by irreversible depurination (see scheme).
引用
收藏
页码:1658 / +
页数:5
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