Nature Communications (Jun 2021)

PGRL2 triggers degradation of PGR5 in the absence of PGRL1

  • Thilo Rühle,
  • Marcel Dann,
  • Bennet Reiter,
  • Danja Schünemann,
  • Belen Naranjo,
  • Jan-Ferdinand Penzler,
  • Tatjana Kleine,
  • Dario Leister

DOI
https://doi.org/10.1038/s41467-021-24107-7
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 14

Abstract

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It is currently thought that the thylakoid proteins PGRL1 and PGR5 form a complex to mediate cyclic electron flow (CEF) around photosystem I. Here the authors show that CEF can in fact be mediated by PGR5 alone and that PGRL1 and the homologous PGRL2 modify the process by modulating PGR5 activity and stability.