Below is sample crystal structure of R-phycoerythrin from Protein Data Bank: Absorption peaks in the visible light spectrum are measured at 495 and 545/566 nm, depending on the chromophores bound and the considered organism.
Debaixo a estrutura cristalina da R-ficoeritrina de Protein Data Bank: Os picos de absorción no espectro da luz visible aparecen a 495 e 545/566 nm, dependendo dos cromóforos que leven unidos e o organismo considerado.