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Nitric oxide (NO·) is an important mediator of innate immunity. The facultative intracellular pathogen Salmonella has evolved mechanisms to detoxify and evade the antimicrobial actions of host‐derived NO· produced during infection. Expression of the NO·‐detoxifying flavohaemoglobin Hmp is controlled by the NO·‐sensing transcriptional repressor NsrR and is required for Salmonella virulence. In this...
The phage shock protein (Psp) system is induced by extracytoplasmic stress and thought to be important for the maintenance of proton motive force. We investigated the contribution of PspA to Salmonella virulence. A pspA deletion mutation significantly attenuates the virulence of Salmonella enterica serovar Typhimurium following intraperitoneal inoculation of C3H/HeN (Ityr) mice. PspA was found to...
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