FIG 3.

The putative CsrA regulatory elements of effector-encoding genes. The regulatory regions of the effectors found to be regulated by the LetA-RsmYZ-CsrA cascade are presented. The nucleotides representing the putative CsrA consensus are in boldface and gray background, small inverted repeats surrounding the putative CsrA sites are underlined, the ATG start codon is in bold, and the nucleotides that were mutated are marked with asterisks. The effector designations are indicated on the left, and the fold reduction in the level of expression of each effector between the letA deletion mutant and the wild-type strain at the stationary phase is indicated on the right.