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Treatment of infections is compromised worldwide by the emergence of bacteria that are resistant to multiple antibiotics. Although classically attributed to chromosomal mutations, resistance is most commonly associated with extrachromosomal elements acquired from other bacteria in the environment. These include different types of mobile DNA segments, such(More)
MarR negatively regulates expression of the multiple antibiotic resistance operon (marRAB) in Escherichia coli. In this study, it was demonstrated that sodium salicylate, plumbagin, 2, 4-dinitrophenol, and menadione-inducers of the marRAB operon in whole cells-all interfered with the repressor activity of MarR in vitro. It is proposed that these compounds(More)
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