Escherichia coli deltafur mutant displays low HPII catalase activity in stationary phase.

Abstract excerpt

Iron is among the most important micronutrients used by bacteria. As a partner of the Fenton reaction, however, iron potentiates oxygen toxicity. Strict regulation of iron metabolism, and its coupling with regulation of defenses against oxidative stress, is an essential factor for life in the presence of oxygen. In Escherichia coli, iron metabolism is regulated by the Fur protein. A Fur-deficient mutant, in...

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