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RNA- and protein-mediated control of Listeria monocytogenes virulence gene expression

Abstract : The model opportunistic pathogen Listeria monocytogenes has been the object of extensive research, aiming at understanding its ability to colonize diverse environmental niches and animal hosts. Bacterial transcriptomes in various conditions reflect this efficient adaptability. We review here our current knowledge of the mechanisms allowing L. monocytogenes to respond to environmental changes and trigger pathogenicity, with a special focus on RNA-mediated control of gene expression. We highlight how these studies have brought novel concepts in prokaryotic gene regulation, such as the 'excludon' where the 5'-UTR of a messenger also acts as an antisense regulator of an operon transcribed in opposite orientation, or the notion that riboswitches can regulate non-coding RNAs to integrate complex metabolic stimuli into regulatory networks. Overall, the Listeria model exemplifies that fine RNA tuners act together with master regulatory proteins to orchestrate appropriate transcriptional programmes.
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Submitted on : Thursday, August 4, 2016 - 2:12:42 PM
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Alice Lebreton, Pascale Cossart. RNA- and protein-mediated control of Listeria monocytogenes virulence gene expression. RNA Biology, Taylor & Francis, 2017, 14 (5), pp.460-470. ⟨10.1080/15476286.2016.1189069⟩. ⟨hal-01350979⟩

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