FIG. 1.

Effects of mprAB deletion on acr2 expression under various stresses. Expression of acr2 was determined by real-time PCR using RNA extracted from cultures exposed for 90 min to 0.05% SDS (A), 45°C (B), or 5 mM diamide (C). The C on the horizontal axis in each panel indicates control samples. Results were normalized for 16S RNA content and are shown as the fold change above the level of the H37Rv control (Rv-C), which was given a value of 1. Data are the means ± standard errors of the means from three separate experiments. H37Rv, gray bar; Rv-D981, black bar; Rv-D981C, white bar.