JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
REVIEW
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Post-transcriptional control of virulence gene expression in Staphylococcus aureus.

Opportunistic pathogens have to be ready to change life-style whenever the occasion arises, and therefore need to keep tight control over the expression of their virulence factors. Doubly so for commensal bacteria, such as Staphylococcus aureus, which should avoid harming their hosts when they are in a state of peaceful co-existence. S. aureus carries very few sigma factors to help define the transcriptional programs, but instead uses a plethora of small RNA molecules and RNA-RNA interactions to regulate gene expression post-transcriptionally. The endoribonucleases RNase III and RNase Y contribute to this regulatory diversity, and provide a link to RNA-decay and intra-cellular spatiotemporal control of expression. In this review we describe some of these post-transcriptional mechanisms as well as some of the novel transcriptomic approaches that have been used to find and to study them.

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