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pubmed:abstractText |
1. R-phycoerythrin from Ceramium rubrum and C-phycocyanin from Nostoc muscorum have been obtained in purified form by fractional crystallization, followed by chromatography and gel-filtration. 2. The amino acid composition of both chromoproteins was determined; 85% of the total weight of both was recovered as amino acids. 3. Alanine was identified as the only C-terminal amino acid of R-phycoerythrin, each molecule of which contained about 12 terminal groups. 4. Serine was identified as the only C-terminal group of C-phycocyanin.
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