si_0481 Ferrous_iron_transporter_EfeUOB,_low-pH-induced Ferrous iron transport permease EfeU si_0481 Ferrous_iron_transporter_EfeUOB,_low-pH-induced Ferrous iron transport permease EfeU, N-terminal extended si_0481 Ferrous_iron_transporter_EfeUOB,_low-pH-induced Ferrous iron transport periplasmic protein EfeO, contains peptidase-M75 domain and (frequently) cupredoxin-like domain si_0481 Ferrous_iron_transporter_EfeUOB,_low-pH-induced Ferrous iron transport peroxidase EfeB