Tags: Chemical Compound, Chemical Substance.
Phycoerythrobilin is a red phycobilin i.e. an open tetrapyrrole chromophore found in cyanobacteria and in the chloroplasts of red algae glaucophytes and some cryptomonads. Phycoerythrobilin is present in the phycobiliprotein phycoerythrin of which it is the terminal acceptor of energy. The amount of phycoerythrobilin in phycoerythrins varies a lot depending on the considered organism.
