Three-dimensional structure of plant light-harvesting complex determined by electron crystallography
- 1 March 1991
- journal article
- Published by Springer Nature in Nature
- Vol. 350 (6314) , 130-134
- https://doi.org/10.1038/350130a0
Abstract
The structure of the light-harvesting chlorophyll a/b-protein complex, a membrane protein serving as the major antenna of solar energy in plant photosynthesis, has been determined at 6 A resolution by electron crystallography. Within the complex, three membrane-spanning alpha helices and 15 chlorophyll molecules are resolved. There is an intramolecular diad relating two of the alpha helices and some of the chlorophylls. The spacing of the chlorophylls suggests energy transfer by delocalized exciton coupling and Förster mechanisms.Keywords
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