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Phycocyanins: Structure and Function

  • Alexander N. Glazer

Abstract

The presence of lamellar structures (thylakoids) is a common feature of the ultrastructure of cells performing oxygen evolving photosynthesis. In eukaryotic cells, the photosynthetic lamellae are contained within chloroplasts. In addition to protein-chlorophyll complexes, the thylakoids contain cytochromes, ferredoxin, plastocyanin, carotenoids, various quinones, and a high proportion of galactosylglycerides, phospholipids, and sulfolipids. The bulk of the chlorophyll within the thylakoid serves as a light-harvesting (or antenna) pigment. The trapped light energy is transferred from the antenna pigment to specialized protein-chlorophyll complexes—the “reaction centers”—at which it is converted to chemical energy. The reaction center chlorophylls represent a very small proportion (< 1%) of the chlorophyll within the thylakoid.

Keywords

Amino Acid Composition Circular Dichroism Spectrum Subunit Structure Accessory Pigment Circular Dichroism Band 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1976

Authors and Affiliations

  • Alexander N. Glazer
    • 1
  1. 1.Department of Biological Chemistry, UCLA School of Medicine, and the Molecular Biology InstituteUniversity of CaliforniaLos AngelesUSA

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