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- W2799476560 abstract "Salmonella Typhimurium is an enteric pathogen that has evolved masterful strategies to enable survival under stress conditions both within and outside a host. The acid tolerance response (ATR) is one such mechanism that enhances the viability of acid adapted bacteria to lethal pH levels. While numerous studies exist on the protein coding components of this response, there is very little data on the roles of small RNAs (sRNAs). These non-coding RNA molecules have recently been shown to play roles as regulators of bacterial stress response and virulence pathways. They function through complementary base pairing interactions with target mRNAs and affect their translation and/or stability. There are also a few that directly bind to proteins by mimicking their respective targets. Here, we identify several sRNAs expressed during the ATR of S. Typhimurium and characterize one highly induced candidate, RyeC. Further, we identify ptsI as a trans-encoded target that is directly regulated by this sRNA. From a functional perspective, over-expression of RyeC in Salmonella produced a general attenuation of several in vitro phenotypes including acid survival, motility, adhesion and invasion of epithelial cell lines as well as replication within macrophages. Together, this study highlights the diverse roles played by sRNAs in acid tolerance and virulence of S. Typhimurium." @default.
- W2799476560 created "2018-05-17" @default.
- W2799476560 creator A5005744751 @default.
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- W2799476560 date "2018-07-01" @default.
- W2799476560 modified "2023-10-14" @default.
- W2799476560 title "Biological and regulatory roles of acid-induced small RNA RyeC in Salmonella Typhimurium" @default.
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- W2799476560 doi "https://doi.org/10.1016/j.biochi.2018.05.001" @default.
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