Putrescine as a modulator of the level of RNA polymerase σS subunit in Escherichia coli cells under acid stress


Metabolites accumulated in the culture medium of Escherichia coli cells induce expression of the rpoS gene encoding the alternative σS subunit of RNA polymerase, which controls adaptation of E. coli to acid stress during growth in glucose—mineral medium. The effect of acetate and succinate as end products of E. coli metabolism has been investigated on the… (More)
DOI: 10.1134/S0006297906020118

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