| Literature DB >> 877583 |
H B Gamper, A S Tung, K Straub, J C Bartholomew, M Calvin.
Abstract
Syn-and anti-benzo[a]pyrene diol epoxides elicit a concentration-dependent nicking of superhelical Col E1 DNA in an in vitro reaction monitored by agarose gel electrophoresis and electron microscopy. This strand scission represents less than 1 percent of the DNA modification by diol epoxide. Kinetic analysis implicates the formation of unstable phosphotriesters, hydrolysis of which nick the DNA.Entities:
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Year: 1977 PMID: 877583 DOI: 10.1126/science.877583
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728