Abstract
Regulatory noncoding RNAs (ncRNAs) play important roles in bacterial gene regulation, primarily at the post-transcriptional level. There are four broad categories of regulatory ncRNAs including trans-encoded ncRNAs, cis-encoded ncRNAs, RNA thermometers and riboswitches, and they can influence the translation and/or stability of mRNAs by binding to the base-pairing sites in their target transcripts. In pathogenic bacteria, numerous ncRNAs are involved in the coordinated expression of virulence determinants to facilitate the pathogenicity in a concerted manner. This review discusses the modes of action of different regulatory ncRNAs and, furthermore, exemplifies their roles in regulating bacterial pathogenicity.
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