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Subunit Structure of the Phycobiliproteins of Blue-Green Algae

A. N. Glazer and Germaine Cohen-Bazire
Proceedings of the National Academy of Sciences of the United States of America
Vol. 68, No. 7 (Jul., 1971), pp. 1398-1401
Stable URL: http://www.jstor.org/stable/60704
Page Count: 4
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Subunit Structure of the Phycobiliproteins of Blue-Green Algae
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Abstract

The phycobiliproteins of the blue-green algae Synechococcus sp. and Aphanocapsa sp. were characterized with respect to homogeneity, isoelectric point, and subunit composition. Each of the biliproteins consisted of two different noncovalently associated subunits, with molecular weights of about 20,000 and 16,000 for phyco-cyanin, 17,500 and 15,500 for allophycocyanin, and 22,000 and 20,000 for phycoerythrin. Covalently bound chromophore was associated with each subunit.

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