>sp|B8HNR1|UCRI_CYAP4 Cytochrome b6-f complex iron-sulfur subunit OS=Cyanothece sp. GN=petC MAQLSGTPDVPDMGRRQFMNLLTFGSATGVALGMLYPVVRYFIPPASGGVGGGVVAKDAL GNDISVSDFLAKHPANDRALAQGLKGDPTYIVVQDDHTIGDYGLNAVCTHLGCVVPWNIS ENKFICPCHGSQYDNTGKVVRGPAPLSLALAHAAVSDDKITFTPWTETDFRTGKEPWWT