Matches in SemOpenAlex for { <https://semopenalex.org/work/W123624585> ?p ?o ?g. }
- W123624585 abstract "The ability of bacteria to thrive in a variety of host environments depends on their capacity to sense and respond to a wide array of stressors. E. coli encounters many stresses during transit through the gastro-intestinal tract, including acid stress. Acid stress response in E. coli is regulated by a complex network called AR2. The AR2 network comprises several local regulators that collate signals from multiple two-component systems (TCS) including RcsBD, EvgAS and PhoPQ. We combined lab-based evolution and whole genome re-sequencing to generate and identify mutations that confer increased acid resistance in E. coli K-12. All of these mutations map in the gene encoding EvgS, the sensor kinase of the EvgAS TCS. Using a luciferase reporter system and phenotypic assays we characterised the nature of these evgS mutations and their contribution to acid resistance. We also used high-temporal resolution luciferase reporter assays to uncover novel aspects of this network and implicate PhoP in the repression of acid resistance. Finally, we used our evgS mutants to characterise novel interactions within the AR2 network between the two component systems RcsBD and EvgAS. These results are discussed in relation to the role of regulatory networks in bacteria." @default.
- W123624585 created "2016-06-24" @default.
- W123624585 creator A5040050040 @default.
- W123624585 date "2011-12-01" @default.
- W123624585 modified "2023-09-23" @default.
- W123624585 title "Understanding the regulation of acid resistance in E. coli using whole genome techniques" @default.
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