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Review
. 2013 Jul;25(7):1608-13.
doi: 10.1016/j.cellsig.2013.04.003. Epub 2013 Apr 16.

The Underling Mechanism of Bacterial TetR/AcrR Family Transcriptional Repressors

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Review

The Underling Mechanism of Bacterial TetR/AcrR Family Transcriptional Repressors

Wanyan Deng et al. Cell Signal. .

Abstract

Bacteria transcriptional regulators are classified by their functional and sequence similarities. Member of the TetR/AcrR family is two-domain proteins including an N-terminal HTH DNA-binding motif and a C-terminal ligand recognition domain. The C-terminal ligand recognition domain can recognize the very same compounds as their target transporters transferred. TetRs act as chemical sensors to monitor both the cellular environmental dynamics and their regulated genes underlying many events, such as antibiotics production, osmotic stress, efflux pumps, multidrug resistance, metabolic modulation, and pathogenesis. Compounds targeting Mycobacterium tuberculosis ethR represent promising novel antibiotic potentiater. TetR-mediated multidrug efflux pumps regulation might be good target candidate for the discovery of better new antibiotics against drug resistance.

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