2012 HOMEWORK_06AB_Questions

A researcher interested in identifying the function

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Unformatted text preview: s mutant has a mutation in a gene encoding a sigma factor, called sigma ­L. Propose a model to explain how sigma ­L regulates oxyA in response to oxygen. 3 8. If a two ­component regulatory system is activated by a small molecule, that small molecule most likely binds to the [kinase/response regulator] component. 9. EnvZ and OmpR appear to be the histidine ­protein kinase and response regulatory portions, respectively, of a two ­component regulatory system. As such, you hypothesize that EnvZ phosphorylates OmpR using ATP. Describe an experiment to test this hyp...
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