The RpoS-mediated general stress response in Escherichia coli.
The RpoS-mediated general stress response in Escherichia coli.
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DOI:
10.1146/annurev-micro-090110-102946
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发表时间:
2011
影响因子:
10.5
通讯作者:
Gottesman S
中科院分区:
文献类型:
--
作者:
Battesti A;Majdalani N;Gottesman S
Under conditions of nutrient deprivation or stress or as cells enter stationary phase, Escbericbia coli and related bacteria increase the accumulation of RpoS, a specialized sigma factor. RpoS-dependent gene expression leads to general stress resistance of cells. During rapid growth RpoS translation is inhibited and any RpoS protein that is synthesized is rapidly degraded. The complex transition from exponential growth to stationary phase has been partially dissected by analyzing the induction of RpoS after specific stress treatments. Different stress conditions lead to induction of specific sRNAs that stimulate RpoS translation or to induction progress has led to a better, but still far from complete, understanding of how stresses lead to RpoS induction and what RpoS-dependent genes help the cell deal with the stress.
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