Figure 6From: Investigating the genetic regulation of the ECF sigma factor σS in Staphylococcus aureus KdpE directly regulates sigS expression. Electrophoretic mobility shift mobility assays were performed using purified KdpE, the promoter region of kdpFABC (positive control), the promoter region of sigS (test), and an intergenic region from the rseP gene (negative control). KdpE was added at increasing concentrations of 0.1, 0.5 and 0.75 μM in all panels.Back to article page