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Listeriolysin S: A bacteriocin from Listeria monocytogenes that induces membrane permeabilization in a contact-dependent manner
Journal article   Open access   Peer reviewed

Listeriolysin S: A bacteriocin from Listeria monocytogenes that induces membrane permeabilization in a contact-dependent manner

Jazmín Meza-Torres, Mickaël Lelek, Juan Quereda, Martin Sachse, Giulia Manina, Dmitry Ershov, Jean-Yves Tinevez, Lilliana Radoshevich, Claire Maudet, Thibault Chaze, …
Proceedings of the National Academy of Sciences - PNAS, Vol.118(40), p.e2108155118
10/05/2021
DOI: 10.1073/pnas.2108155118
PMCID: PMC8501752
PMID: 34599102
url
https://doi.org/10.1073/pnas.2108155118View
Published (Version of record) Open Access

Abstract

Significance Listeria monocytogenes ( Lm ) is a bacterial pathogen that causes listeriosis, a foodborne disease characterized by gastroenteritis, meningitis, bacteremia, and abortions in pregnant women. The most severe human listeriosis outbreaks are associated with a subset of Lm hypervirulent clones that encode the bacteriocin Listeriolysin S (LLS), which modifies the gut microbiota and allows efficient Lm gut colonization and invasion of deeper organs. Our present work identifies the killing mechanism displayed by LLS to outcompete gut commensal bacteria, demonstrating that it induces membrane permeabilization and membrane depolarization of target bacteria. Moreover, we show that LLS is a thiazole/oxazole–modified microcin that displays a contact-dependent inhibition mechanism.
Adenosine Triphosphate Bacteriocins Bacteriology Cell Membrane Cytoplasm Hemolysin Proteins Life Sciences Listeria monocytogenes Microbiology and Parasitology

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