Article
Lethal action of quinolones against a temperature-sensitive dnaB replication mutant of Escherichia coli.
Antimicrobial agents and chemotherapy - 1 Jan 2006
Zhao Xilin, Malik Muhammad, Chan Nymph, Drlica-Wagner Alex, Wang Jian-Ying, Li Xinying, Drlica Karl
Abstract excerpt
Inhibition of DNA replication in an Escherichia coli dnaB-22 mutant failed to block quinolone-mediated lethality. Inhibition of protein synthesis by chloramphenicol inhibited nalidixic acid lethality and, to a lesser extent, ciprofloxacin lethality in both dnaB-22 and wild-type cells. Thus, major features of quinolone-mediated lethality do not depend on ongoing replication.
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