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Electrophoretic mobility shift assays (EMSAs) of the pfeT promoter region (268 bp) with PerR. (A) EMSA of the WT pfeT promoter region showing PerR binding. (B) EMSAs of pfeT PI*, FII*, FIII*, and FF** promoter region mutants (Fig. 1B) showing the effect on PerR binding. All EMSAs were performed a total of three times with very similar results, and a representative result is shown.
