Shining light on dinoflagellate photosystem I

Senjie Lin (), Shuaishuai Wu, Jiamin He, Xiaoyu Wang and Arthur R. Grossman
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Senjie Lin: University of Connecticut
Shuaishuai Wu: Xiamen University
Jiamin He: Xiamen University
Xiaoyu Wang: Xiamen University
Arthur R. Grossman: Carnegie Institution for Science

Nature Communications, 2024, vol. 15, issue 1, 1-4

Abstract: Dinoflagellates are ecologically important and essential to corals and other cnidarians as phytosymbionts, but their photosystems had been underexplored. Recently, photosystem I (PSI) of dinoflagellate Symbiodinium sp. was structurally characterized using cryo-Electron Microscopy (cryo-EM). These analyses revealed a distinct organization of the PSI supercomplex, including two previously unidentified subunits, PsaT and PsaU, and shed light on interactions between light harvesting antenna proteins and the PSI core. These results have implications with respect to the evolution of dinoflagellates and their association with cnidarians.

Date: 2024
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DOI: 10.1038/s41467-024-47797-1

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