>sp|Q7V2L4|UCRI_PROMP Cytochrome b6-f complex iron-sulfur subunit OS=Prochlorococcus marinus subsp. pastoris (strain CCMP1986 / MED4) GN=petC PE=3 SV=1 MTQLSSNDVPSMGRRQFMNLLTFGTATGVALGALYPVANYFMPLRAGGGGGGTSAKDELG NPVTKTGWLASHQAGDRSLVQGLKGDPTYLIVNSEGEIGEFGLNAICTHLGCVVPWDSGA NKFICPCHGSQYDTNGKVVRGPAPLSLALAHVDVDDDAVLVKQWSETDFRTNENPWWA