>3NRP_1|Chains A, B, C, D|Periplasmic protein-probably involved in high-affinity Fe2+ transport|Escherichia coli (340197) MGFKEYPAGEPVTMNEMELAAVYLQPIDMEPRGMGLPAAKADVHLEADIHAVEGNKNGFGAGEWIPYLTISYTLVNNDTGEKQEGTFMPMVASDGPHYGANIKMMGVGNYKVTYHIEPPSKAGMHRHTDSETGVGRWWKPFDVSYEFKYVGLNSSGLVPR