>sp|Q54711|CYB6_SYNE7 Cytochrome b6 OS=Synechococcus elongatus (strain PCC 7942) GN=petB PE=3 SV=1 MSKVYDWFEERLEIQAIAEDVSSKYVPPHVNIFYCLGGITLTCFLIQFATGFAMTFYYKPTVAEAYSSVQFIMNQVNFGW LIRSIHRWSASMMVLMMILHVFRVYLTGGFKRPRELTWVTGVVMAVITVTFGVTGYSLPWDQVGYWAVKIVSGVPEAIPV VGSAMVELLRGGQSVGQATLTRFYSLHTFVLPWLIAVFMLLHFLMIRKQGISGPL