FIG. 5.

Classification of SigM-dependent genes differing in their responses to disulfide stress. The genetic organization of the respective gene regions is shown. Stem-loops denote rho-independent transcriptional terminators (13). Black boxes indicate experimentally mapped promoters, and white boxes indicate promoters that where found by sequence similarity. RT-PCR ratios were deduced from comparisons of gene expression in C. glutamicum RES167 and sigM mutant C. glutamicum DN1 (first number above the genes), as well as from comparison of C. glutamicum RES167 treated with 2 mM diamide and a C. glutamicum RES167 control (second number above the genes). n.s., no significant change in gene expression.