VxrAB signaling in Vibrio cholerae is activated by diverse mechanical stimuli

Harper, Christine E.; Zhang, Wenyao; Shin, Jung-Ho; Lee, Junsung; Chou, Emily; Chen, Peng; Dörr, Tobias; Hernandez, Christopher J.

doi:10.1016/j.bpj.2021.11.749

Cited by 2 publications

(1 citation statement)

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“…Instead, transcriptional activation of vadR relies on the VxrAB two-component system (Peschek et al 2020 ). VxrAB signaling is triggered by cell wall damaging antibiotics and mechanical stress and promotes high-level tolerance against β-lactam antibiotics (Dörr et al 2016 , Harper et al 2022 ). It also positively regulates virulence, type VI secretion, and biofilm formation (Cheng et al 2015 , Teschler et al 2017 ).…”

Section: Small Rna-mediated Control Of Virulence and Biofilm Formationmentioning

confidence: 99%

Small regulatory RNAs in Vibrio cholerae

Ghandour

Papenfort

2023

microLife

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Vibrio cholerae is a major human pathogen causing the diarrheal disease, cholera. Regulation of virulence in V. cholerae is a multifaceted process involving gene expression changes at the transcriptional and post-transcriptional level. Whereas various transcription factors have been reported to modulate virulence in V. cholerae, small regulatory RNAs (sRNAs) have now been established to also participate in virulence control and the regulation of virulence-associated processes, such as biofilm formation, quorum sensing, stress response, and metabolism. In most cases, these sRNAs act by base-pairing with multiple target transcripts and this process typically requires the aid of an RNA-binding protein, such as the widely conserved Hfq protein. This review article summarizes the functional roles of sRNAs in V. cholerae, their underlying mechanisms of gene expression control, and how sRNAs partner with transcription factors to modulate complex regulatory programs. In addition, we will discuss regulatory principles discovered in V. cholerae that not only apply to other Vibrio species, but further extend into the large field of RNA-mediated gene expression control in bacteria.

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