An Inventory of CiaR-Dependent Small Regulatory RNAs in Streptococci

Bacteria adapt to the different environments encountered by rapid and tightly controlled regulations involving complex networks. A first line of control is transcriptional with regulators such as two-component systems (TCSs) that respond to physical and chemical perturbations. It is followed by post...

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Main Authors: Nancy Jabbour, Marie-Frédérique Lartigue
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-05-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2021.669396/full
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author Nancy Jabbour
Marie-Frédérique Lartigue
Marie-Frédérique Lartigue
author_facet Nancy Jabbour
Marie-Frédérique Lartigue
Marie-Frédérique Lartigue
author_sort Nancy Jabbour
collection DOAJ
description Bacteria adapt to the different environments encountered by rapid and tightly controlled regulations involving complex networks. A first line of control is transcriptional with regulators such as two-component systems (TCSs) that respond to physical and chemical perturbations. It is followed by posttranscriptional regulations in which small regulatory RNAs (sRNAs) may affect RNA translation. Streptococci are opportunistic pathogens for humans and farm animals. The TCS CiaRH is highly conserved among this genus and crucial in bacterial survival under stressful conditions. In several streptococcal species, some sRNAs belong to the CiaRH regulon and are called csRNAs for cia-dependent sRNAs. In this review, we start by focusing on the Streptococcus species harboring a CiaRH TCS. Then the role of CiaRH in streptococcal pathogenesis is discussed in the context of recent studies. Finally, we give an overview of csRNAs and their functions in Streptococci with a focus on their importance in bacterial adaptation and virulence.
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spelling doaj.art-26d2c3e462b2414680a8565e6738202d2022-12-21T20:41:01ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2021-05-011210.3389/fmicb.2021.669396669396An Inventory of CiaR-Dependent Small Regulatory RNAs in StreptococciNancy Jabbour0Marie-Frédérique Lartigue1Marie-Frédérique Lartigue2Université de Tours, INRAE, ISP, Tours, FranceUniversité de Tours, INRAE, ISP, Tours, FranceCentre Hospitalier Universitaire de Tours, Service de Bactériologie, Virologie, et Hygiène Hospitalière, Tours, FranceBacteria adapt to the different environments encountered by rapid and tightly controlled regulations involving complex networks. A first line of control is transcriptional with regulators such as two-component systems (TCSs) that respond to physical and chemical perturbations. It is followed by posttranscriptional regulations in which small regulatory RNAs (sRNAs) may affect RNA translation. Streptococci are opportunistic pathogens for humans and farm animals. The TCS CiaRH is highly conserved among this genus and crucial in bacterial survival under stressful conditions. In several streptococcal species, some sRNAs belong to the CiaRH regulon and are called csRNAs for cia-dependent sRNAs. In this review, we start by focusing on the Streptococcus species harboring a CiaRH TCS. Then the role of CiaRH in streptococcal pathogenesis is discussed in the context of recent studies. Finally, we give an overview of csRNAs and their functions in Streptococci with a focus on their importance in bacterial adaptation and virulence.https://www.frontiersin.org/articles/10.3389/fmicb.2021.669396/fullStreptococciregulationCiaRHregulatory RNAscsRNAs
spellingShingle Nancy Jabbour
Marie-Frédérique Lartigue
Marie-Frédérique Lartigue
An Inventory of CiaR-Dependent Small Regulatory RNAs in Streptococci
Frontiers in Microbiology
Streptococci
regulation
CiaRH
regulatory RNAs
csRNAs
title An Inventory of CiaR-Dependent Small Regulatory RNAs in Streptococci
title_full An Inventory of CiaR-Dependent Small Regulatory RNAs in Streptococci
title_fullStr An Inventory of CiaR-Dependent Small Regulatory RNAs in Streptococci
title_full_unstemmed An Inventory of CiaR-Dependent Small Regulatory RNAs in Streptococci
title_short An Inventory of CiaR-Dependent Small Regulatory RNAs in Streptococci
title_sort inventory of ciar dependent small regulatory rnas in streptococci
topic Streptococci
regulation
CiaRH
regulatory RNAs
csRNAs
url https://www.frontiersin.org/articles/10.3389/fmicb.2021.669396/full
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