RovS and Its Associated Signaling Peptide Form a Cell-To-Cell Communication System Required for Streptococcus agalactiae Pathogenesis

Autor: David Pérez-Pascual, Philippe Gaudu, Betty Fleuchot, Colette Besset, Isabelle Rosinski-Chupin, Alain Guillot, Véronique Monnet, Rozenn Gardan

Publikováno v: mBio, Vol 6, Iss 1 (2015)

ABSTRACT Bacteria can communicate with each other to coordinate their biological functions at the population level. In a previous study, we described a cell-to-cell communication system in streptococci that involves a transcriptional regulator belong

Externí odkaz: https://doaj.org/article/79bb801b422948548522f2b6c4933f55

Three Distinct Proteases Are Responsible for Overall Cell Surface Proteolysis in Streptococcus thermophilus

Autor: Christine Mézange, Véronique Monnet, Lydie Oliveira Correia, Rozenn Gardan, Thierry Meylheuc, Coralie Metton, Vincent Juillard, Mylène Boulay

Publikováno v: Applied and Environmental Microbiology
Applied and Environmental Microbiology, American Society for Microbiology, 2021, 87 (23), ⟨10.1128/AEM.01292-21⟩
Appl Environ Microbiol

International audience; The lactic acid bacterium Streptococcus thermophilus was believed to display only two distinct proteases at the cell surface, namely, the cell envelope protease PrtS and the housekeeping protease HtrA. Using peptidomics, we de

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6522064e223f56dfbfbafd55c0db56f9
https://doi.org/10.1128/aem.01292-21

Quorum-sensing regulators in Gram-positive bacteria: ‘cherchez le peptide ’

Autor: Rozenn Gardan, Véronique Monnet

Publikováno v: Molecular Microbiology. 97:181-184

Summary Gram-positive bacteria can regulate gene expression at the population level via a mechanism known as quorum sensing. Oligopeptides serve as the signaling molecules; they are secreted and then are either detected at the bacterial surface by tw

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::17dc8b7bba6fd560df01158765bbb7da
https://doi.org/10.1111/mmi.13060

Costs of CRISPR-Cas-mediated resistance in Streptococcus thermophilus

Autor: Guillaume Lafforgue, Francois Gatchitch, Pedro F. Vale, Sylvain Moineau, Rozenn Gardan, Sylvain Gandon

Publikováno v: Proceedings of the Royal Society B: Biological Sciences
Proceedings of the Royal Society B: Biological Sciences, Royal Society, The, 2015, 282 (1812), pp.41-49. ⟨10.1098/rspb.2015.1270⟩

CRISPR-Cas is a form of adaptive sequence-specific immunity in microbes. This system offers unique opportunities for the study of coevolution between bacteria and their viral pathogens, bacteriophages. A full understanding of the coevolutionary dynam

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89227bfc673665f6783ca175e82efc54
https://europepmc.org/articles/PMC4528535/

Mechanism of competence activation by the ComRS signalling system in streptococci

Autor: Laetitia, Fontaine, Philippe, Goffin, Hélène, Dubout, Brigitte, Delplace, Alain, Baulard, Nathalie, Lecat-Guillet, Emilie, Chambellon, Rozenn, Gardan, Pascal, Hols

Publikováno v: Molecular microbiology. 87(6)

In many streptococci, competence for natural DNA transformation is regulated by the Rgg-type regulator ComR and the pheromone ComS, which is sensed intracellularly. We compared the ComRS systems of four model streptococcal species using in vitro and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::c6a11c81398898c1b39e6d29bd1dcce4
https://pubmed.ncbi.nlm.nih.gov/23323845