EFFECTS OF DNA-BINDING DRUGS ON T4 DNA-LIGASE

被引:16
作者
MONTECUCCO, A
PEDRALINOY, G
SPADARI, S
LESTINGI, M
CIARROCCHI, G
机构
关键词
D O I
10.1042/bj2660379
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A number of DNA intercalating and externally binding drugs have been found to inhibit nick sealing, cohesive and blunt end ligation, AMP-dependent DNA topoisomerization and EDTA-induced DNA nicking mediated by bacteriophage T4 DNA ligase. The inhibition seems to arise from drug-substrate interaction so that formation of active DNA-Mg2+-AMP-enzyme complex is impaired while assembled and active complexes are not disturbed by drug binding to the substrate.
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页码:379 / 384
页数:6
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