Phycobiliprotein

Phycobiliproteins are water-soluble proteins present in cyanobacteria and certain algae (rhodophytes, cryptomonads, glaucocystophytes) that capture light energy which is then passed on to chlorophylls during photosynthesis. Phycobiliproteins are formed of a complex between proteins and covalently bound phycobilins that act as chromophores (the light-capturing part). They are most important constituents of the phycobilisomes.

The major phycobiliproteins are :
 * Phycoerythrin
 * Phycocyanin
 * Allophycocyanin
 * Phycoerythrocyanin

Ficobilina Phycobiliprotéine