Gastroclonium coulteri

There are three main classes of phycobiliproteins, differing in their protein structure, bilin content, and fluorescent properties. These are phycoerythrin, phycocyanin, and allo-phycocyanin (APC). There are two main forms of phycoerythrin proteins commonly in use B-phycoerythrin isolated from Porphyridium cruentum and R-phycoerythrin from Gastroclonium coulteri. There also are three main forms of pigments found in these proteins phycoerythrobilin, phycourobilin, and phycocya no bilin (Glazer, 1985). The relative content of these pigments in the phycobiliproteins determines their spectral properties. All of them,... 

Source Porphyridium cruentum Gastroclonium coulteri Anabaena variabilis Anabaena variabilis... 

The absorption and fluorescence spectra ofthe four representative phycobiliproteins are shown in Fig. 5 allophycocyanin from the filamentous cyanobacterium Ana aena variabilis, R-pbycocyanin and B-phycoerythrin from tbe unicellular red alga Porphyridium cruentum, and R-phycoerytbrin from the red alga Gastroclonium coulteri. 

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