JW5141/JW1002 b1016/b1017 Putative ferrous iron permease efeU EFEU_ECOLI Putative Fe(2+) ion permease efeU b4490 efeU Functions only as an uptake system for Fe(2+) ion acquisition (By similarity). ycdN MFVPFLIMLREGLEAALIVSLIASYLKRTQRGMXDCVMWIGVLLAAALCLGLGIFINETTGEFPQKEQELFEGIVAVIAVVILTWMVFWMRKVSRNVKVQLEQAVDSALQRGNHHGWALVMMVFFAVAREGLESVFFLLAAFQQDVGIWPPLGAMLGLATAVVLGFLLYWGGIRLNLGAFFKWTSLFILFVAAGLAAGAIRAFHEAGLWNHFQEIAFDMSAVLSTHSLFGTLMEGIFGYQEAPSVSEVAVWFIYLIPALVAFALPPRAGATASRSA 276