In Chromatium, a single photochemical reaction center oxidizes both cytochrome C552 and cytochrome C555.
D020130:Bacterial Chromatophores; D055598:Chemical Phenomena; D002621:Chemistry; D002844:Chromatium / Q000378:metabolism*; D003580:Cytochromes / Q000378:metabolism*; D004579:Electron Transport; D007700:Kinetics; D008027:Light; D010618:Phenanthrolines
D003580:Cytochromes; D010618:Phenanthrolines