产品介绍： In phycobilisomes, the light-harvesting antennae of red algae, b-phycoerythrin consists of alpha and beta chains that contain phycoerythrobilin chromophores (an open-chain tetrapyrolle, red colored). It is found in chloroplasts of many red algae, and is closely related to the PEs of cyanobacteria and cryptomonads.