Transcriptional Regulation of the rsbV Promoter Controlling Stress Responses to Ethanol, Carbon Limitation, and Phosphorous Limitation in Bacillus subtilis

Figure 3

Effects of various mutations and conditions on the glucose starvation response of the rsbV promoter. (a) Effects of the rsbV1m1 (◆), rsbV3 (▴), and rsbV5 (×) mutations in the rsbU (upstream) region in front of the rsbV promoter on promoter activity in response to glucose limitation as a function of time. The wild-type response (rsbV1, ■) is shown at the top. (b) The effects of ccpA (), tnrA (◆), and ccpA tnrA (▴) double knockout mutants on the glucose starvation response as a function of time. The wild-type response is represented by square symbols (■). (c) Effect of glucose limitation on expression of the ctc gene which is under sigma B (σ ^B) control, in the wild-type (■) or ccpA () genetic backgrounds.

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