Dorte Fischer

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rpoS is the structural gene for the sigma S subunit of RNA polymerase which controls the expression of a large number of genes in Escherichia coli that are induced during entry into stationary phase or in response to increased medium osmolarity. Using a combination of primer extension experiments and a 5' deletion analysis of the region upstream of rpoS, we(More)
The general stress sigma factor sigmaS (RpoS) of Escherichia coli is strongly induced in response to glucose starvation. This increase in the cellular sigmaS level is due to stabilization of sigmaS, which under non-stress conditions is subject to rapid proteolysis. In the present study, it is demonstrated that sigmaS is also induced during the diauxic shift(More)
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