Role of sigma factor E in regulation of Salmonella Agf expression

► A Salmonella mutant lacking Agf was screened by random transposon mutagenesis. ► The transposon of the mutant was inserted in the rpoE gene. ► The RpoE regulates the expression of AgfD which is a regulator for Agf. ► This is the first report that RpoE regulates Agf expression in Salmonella.