>tr|A0A0A2BCV6|A0A0A2BCV6_PROMR Cytochrome b6 OS=Prochlorococcus marinus str. MIT 9401 GN=petB MANSSSVYDWFQERLEIQDITDDVTSKYVPPHVNIFYCLGGITLVCFLIQFATGFAMTFY YKPTVTQAYSSVSYLMTDVSFGWLIRSVHRWSASMMVLMLILHVFRVYLTGGFKRPRELT WVTGVVMAVITVAFGVTGYSLPWDQVGYWAVKIVSGVPAAIPVIGDFMVELLRGGESVGQ STLTRFYSLHTFVLPWSLAVFMLMHFLMIRKQGISGPL