Novel Mycobacterium tuberculosis anti‐σ factor antagonists control σF activity by distinct mechanisms

Abstract excerpt

The aetiological agent of tuberculosis, Mycobacterium tuberculosis, encodes 13 sigma factors, as well as several putative anti-, and anti-anti- sigma factors. Here we show that a sigma factor that has been previously shown to be involved in virulence and persistence processes, sigmaF, can be specifically inhibited by the anti-sigma factor UsfX. Importantly, the inhibitory activity of UsfX, in turn, can be...

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