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Diagram depicting the molecular basis of salicylate-mediated induction of CmeABC and Cj0561c. (A) Baseline expression of the genes in the absence of salicylate. Transcription of cmeABC and cj0561c is at a low level due to inhibition by CmeR. (B) Induction of the genes by salicylate. When salicylate is present, it inhibits the binding of CmeR and ameliorates the repression on cmeABC and cj0561c, leading to overexpression of CmeABC and Cj0561c.
