期刊
MOLECULAR MICROBIOLOGY
卷 46, 期 3, 页码 791-800出版社
WILEY
DOI: 10.1046/j.1365-2958.2002.03199.x
关键词
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The ubiquitous and highly conserved RecA protein is generally expressed from a single promoter, which is regulated by LexA in conjunction with RecA. We show here using transcriptional fusions to a reporter gene that the Mycobacterium tuberculosis recA gene is expressed from two promoters. Although one promoter is clearly regulated in the classical way, the other remains DNA damage inducible in the absence of RecA or when LexA binding is prevented. These observations demonstrate convincingly for the first time that there is a novel mechanism of DNA damage induction in M. tuberculosis that is independent of LexA and RecA.
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