>sp|Q2JUP1|UCRI_SYNJA Cytochrome b6-f complex iron-sulfur subunit OS=Synechococcus sp. GN=petC MTEAVSNFEAPPMSRRVFLNALLSSSVGVVVVGTLYPVVKYFIPPSSGGAGEGVIAQDAL GKPISVSELLATHAATDRVLAQGLKGDPTYIVIDNGAVANYGLNAVCTHLGCVVPWNAGE NLFKCPCHGSQYAANGKVIRGPAPRSLELVSATVDGDNVRFSPWQGPDFREA