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System for Efficacy and Cytotoxicity Screening of Inhibitors Targeting Intracellular Mycobacterium tuberculosis
Published on: April 5, 2017
DevR (DosR) binding peptide inhibits adaptation of Mycobacterium tuberculosis under hypoxia
Sakshi Dhingra1, Kohinoor Kaur, Neetu K Taneja
1Department of Biotechnology, All India Institute of Medical Sciences, New Delhi, India.
Abstract:
DevR is a key regulator of the dormancy response in Mycobacterium tuberculosis (M. tb). Using DevR as bait to screen a phage display library, a peptide, DevRS1, was obtained. DevRS1 inhibited DevR-regulated transcription and survival of nonreplicating tubercle bacilli in a hypoxia model of dormancy. DevRS1 peptide-mediated inhibition demonstrates the efficacy of intercepting DevR function to block hypoxic adaptation of M. tb.
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