Negative Control of RpoS Synthesis by the sRNA ReaL in .

(Pae) is an opportunistic human pathogen, able to resist host defense mechanisms and antibiotic treatment. In Pae, the master regulator of stress responses RpoS (σ) is involved in the regulation of quorum sensing and several virulence genes. Here, we report that the sRNA ReaL translationally silences mRNA, which results in a decrease of the RpoS levels.