Crystal structure of C-phycocyanin from Phormidium, Lyngbya spp. (Marine) and Spirulina sp. (Fresh water) shows two different ways of energy transfer between two hexamers.
2uum is a 24 chain structure with sequence from Spirulina sp.. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
[PHCA_ARTPT] Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex. [PHCB_ARTPT] Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex.
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.