>sp|P0A384|CYB6_NOSS1 Cytochrome b6 OS=Nostoc sp. GN=petB MANVYDWFEERLEIQAIAEDVTSKYVPPHVNIFYCLGGITLVCFLIQFATGFAMTFYYKP TVAEAYSSVQYIMNEVNFGWLIRSIHRWSASMMVLMMILHVFRVYLTGGFKKPRELTWVS GVILAVITVSFGVTGYSLPWDQVGYWAVKIVSGVPEAIPVVGVLISDLLRGGSSVGQATL TRYYSAHTFVLPWLIAVFMLFHFLMIRKQGISGPL