trans-acting mutations in loci other than kdpDE that affect kdp operon regulation in Escherichia coli: effects of cytoplasmic thiol oxidation status and nucleoid protein H-NS on kdp expression.

Abstract excerpt

Transcription of the K(+) transport operon kdp in Escherichia coli is induced during K(+)-limited growth by the action of a dual-component phosphorelay regulatory system comprised of a sensor kinase (integral membrane protein), KdpD, and a DNA-binding response regulator (cytoplasmic protein), KdpE. In this study, we screened for new dke (named dke for decreased kdp expression) mutations (in loci other than kdpDE)...

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