Nature Communications (Oct 2020)

The structure of a red-shifted photosystem I reveals a red site in the core antenna

  • Hila Toporik,
  • Anton Khmelnitskiy,
  • Zachary Dobson,
  • Reece Riddle,
  • Dewight Williams,
  • Su Lin,
  • Ryszard Jankowiak,
  • Yuval Mazor

DOI
https://doi.org/10.1038/s41467-020-18884-w
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 13

Abstract

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Cyanobacterial photosystem I has a highly conserved core antenna consisting of eleven subunits and more than 90 chlorophylls. Here via CryoEM and spectroscopy, the authors determine the location of a red-shifted low-energy chlorophyll that allows harvesting of longer wavelengths of light.