Atomic model of plant light-harvesting complex by electron crystallography

Kühlbrandt, Werner; Wang, Da Neng; Fujiyoshi, Yoshinori

doi:10.1038/367614a0

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Atomic model of plant light-harvesting complex by electron crystallography

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Kühlbrandt, W., Wang, D. N., & Fujiyoshi, Y. (1994). Atomic model of plant light-harvesting complex by electron crystallography. Nature, 367(6464), 614-621. doi:10.1038/367614a0.

Cite as: https://hdl.handle.net/21.11116/0000-0007-CBC3-8

Abstract

The structure of the light-harvesting chlorophyll a/b-protein complex, an integral membrane protein, has been determined at 3.4 Å resolution by electron crystallography of two-dimensional crystals. Two of the three membrane-spanning α-helices are held together by ion pairs formed by charged residues that also serve as chlorophyll ligands. In the centre of the complex, chlorophyll a is in close contact with chlorophyll b for rapid energy transfer, and with two carotenoids that prevent the formation of toxic singlet oxygen.