Polyamines as modulators of gene expression under oxidative stress in Escherichia coli.

Abstract excerpt

Activity of enzymes of polyamine synthesis and contents of their products increased in E. coli cells in response to oxidative stress caused by addition of hydrogen peroxide to an exponentially growing culture. Putrescine and spermidine added to the culture medium in physiological concentrations significantly increased expression of genes oxyR and katG responsible for defense against oxidative stress, whereas...

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