>tr|A0A0A2B2Z5|A0A0A2B2Z5_PROMR Cytochrome b6-f complex subunit 4 OS=Prochlorococcus marinus str. SB GN=petD MSTLKKPDLSDPKLRAKLAKGMGHNYYGEPAWPNDLLYIFPVVILGTIACVVGLAVLDPA MLGDKANPFATPLEILPEWYLYPVFQILRVVPNKLLGIALQTLIPLGLMILPFIENVNKF SNPFRRPIAMSVFLFGTFLTIYLGIGACLPIDKSLTLGLF