FIG. 7.
Northern analysis of clp mRNAs. (A) clpP, clpC, and clpE mRNAs in wild-type (WT) and clpX mutant cells. (B) clpX, clpC, and clpE mRNAs in wild-type and clpP mutant cells. Digoxigenin-labeled antisense mRNA probes were used to detect clpP, clpC, clpX, and clpE transcripts at 37°C and at different times after heat shock at 50°C. St, standards (sizes at left in kilobases); co, control.