Molecular analysis of BcrR, a membrane-bound bacitracin sensor and DNA-binding protein from Enterococcus faecalis.

Abstract excerpt

BcrR has been identified as a novel regulatory protein of high level bacitracin resistance encoded by the bcrABD operon in Enterococcus faecalis. The N-terminal domain of BcrR has similarity to the helix-turn-helix motif of DNA-binding proteins, and topological modeling predicts that the C-terminal domain contains four transmembrane alpha-helices. These data have led to the hypothesis that BcrR functions as both...

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