Plant Physiol. Drug Metab Dispos
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Plant Physiology 80:38-42 (1986)
© 1986 American Society of Plant Biologists

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Articles

Immunochemistry on Cryptomonad Biliproteins 1

Deborah Guard-Friar, Bonnie L. Eisenberg, Mercedes R. Edwards and Robert MacColl

New York State Department of Health, Wadsworth Center for Laboratories and Research, Empire State Plaza, Albany, New York 12201

A survey is made of the immunochemical behavior of four of the six known types of cryptomonad biliproteins: phycocyanins 612 and 645 and phycoerythrins 545 and 566. They were compared both among themselves and to selected biliproteins isolated from blue-green and red algae. All the cryptomonad biliproteins were shown to be closely related to each other by Ouchterlony double diffusion technics. An antigenic relationship among all the cryptomonad biliproteins and B-phycoerythrin (red alga) and C-phycoerythrin (blue-green alga) was established. Only a very marginal cross-reactivity was found between C-phycocyanin (blue-green algae) and the cryptomonad biliproteins. These results suggest a common ancestor for the photosynthetic units of all three biliprotein-containing phyla.

1 Supported by a National Institutes of Health grant GM26050 awarded by the National Institute of General Medical Sciences, PHS/DHHS.






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ASPB Publications PLANT PHYSIOLOGY THE PLANT CELL
Copyright © 1986 by the American Society of Plant Biologists