Abstract
The molecular responses of bacteria to signals from the external environment are complex, but two-component transduction systems are known to play an important role. Here, we summarize the findings of our studies to elucidate the function of the EnvZ/OmpR system in the control of a wide range of physiological processes in Yersinia enterocolitica (bio-serotype 2/O9) that are involved in environmental and host-associated stress adaptation and virulence. Our results provide evidence that OmpR participates in the adaptation of Y. enterocolitica to high osmolarity, oxidative, and low pH stresses. Moreover, they show that the OmpR response regulator both positively and negatively modulates the expression of multiple genes implicated in the control of physiological processes, such as outer membrane permeability, motility, adhesion and invasion abilities, as well as biofilm formation, and this regulation may be fine-tuned in response to changing environmental conditions.
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This work was supported by the Polish Ministry of Science and Higher Education (grant N303 009 32/0537).
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Brzostek, K., Skorek, K., Raczkowska, A. (2012). OmpR, a Central Integrator of Several Cellular Responses in Yersinia enterocolitica . In: de Almeida, A., Leal, N. (eds) Advances in Yersinia Research. Advances in Experimental Medicine and Biology, vol 954. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-3561-7_40
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DOI: https://doi.org/10.1007/978-1-4614-3561-7_40
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