Table 4.

Genes repressed by PerR in B. subtilis (157, 158).

Gene	Function	Role during H2O2 stress
ahpCF katA	Alkyl hydroperoxidase Catalase	Scavenge H2O2
mrgA fur	Dps homolog Repressor of iron import	Reduce the intracellular iron pool
hemAXCDBL		Heme synthesis