FIGURE 7.

Genes involved in peptide and amino-acid catabolism controlled by SigL in C. difficile. Upstream of genes indicated in green, a “–24, –12” promoter was mapped or identified in silico (Table 4). * indicated genes with a “–24, –12” promoter and positively controlled by SigL in transcriptome or in qRT-PCR experiments (Table 4). Genes indicated in blue are positively controlled by SigL in transcriptome but a “–24, –12” promoter is absent upstream of the gene (Supplementary Table S7). Genes indicated in red are negatively controlled by SigL in transcriptome (Supplementary Table S7). Green arrow indicates a compound less detected by Gas-liquid chromatography analysis (Figure 8).