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Ultrafast structural changes within a photosynthetic reaction centre

Author

Listed:
  • Robert Dods

    (University of Gothenburg)

  • Petra Båth

    (University of Gothenburg)

  • Dmitry Morozov

    (University of Jyväskylä)

  • Viktor Ahlberg Gagnér

    (University of Gothenburg)

  • David Arnlund

    (University of Gothenburg)

  • Hoi Ling Luk

    (University of Jyväskylä)

  • Joachim Kübel

    (University of Gothenburg)

  • Michał Maj

    (University of Gothenburg)

  • Adams Vallejos

    (University of Gothenburg)

  • Cecilia Wickstrand

    (University of Gothenburg)

  • Robert Bosman

    (University of Gothenburg)

  • Kenneth R. Beyerlein

    (Centre for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY)

  • Garrett Nelson

    (Arizona State University)

  • Mengning Liang

    (National Accelerator Laboratory)

  • Despina Milathianaki

    (National Accelerator Laboratory)

  • Joseph Robinson

    (National Accelerator Laboratory)

  • Rajiv Harimoorthy

    (University of Gothenburg)

  • Peter Berntsen

    (University of Gothenburg
    La Trobe Institute for Molecular Science, La Trobe University)

  • Erik Malmerberg

    (Lawrence Berkeley National Laboratory)

  • Linda Johansson

    (University of Gothenburg
    University of Southern California)

  • Rebecka Andersson

    (University of Gothenburg)

  • Sergio Carbajo

    (National Accelerator Laboratory)

  • Elin Claesson

    (University of Gothenburg)

  • Chelsie E. Conrad

    (Arizona State University)

  • Peter Dahl

    (University of Gothenburg)

  • Greger Hammarin

    (University of Gothenburg)

  • Mark S. Hunter

    (National Accelerator Laboratory)

  • Chufeng Li

    (Arizona State University)

  • Stella Lisova

    (Arizona State University)

  • Antoine Royant

    (Université Grenoble Alpes, CEA, CNRS
    European Synchrotron Radiation Facility)

  • Cecilia Safari

    (University of Gothenburg)

  • Amit Sharma

    (University of Gothenburg)

  • Garth J. Williams

    (National Accelerator Laboratory)

  • Oleksandr Yefanov

    (Centre for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY)

  • Sebastian Westenhoff

    (University of Gothenburg)

  • Jan Davidsson

    (Uppsala University)

  • Daniel P. DePonte

    (National Accelerator Laboratory)

  • Sébastien Boutet

    (National Accelerator Laboratory)

  • Anton Barty

    (Centre for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY)

  • Gergely Katona

    (University of Gothenburg)

  • Gerrit Groenhof

    (University of Jyväskylä)

  • Gisela Brändén

    (University of Gothenburg)

  • Richard Neutze

    (University of Gothenburg)

Abstract

Photosynthetic reaction centres harvest the energy content of sunlight by transporting electrons across an energy-transducing biological membrane. Here we use time-resolved serial femtosecond crystallography1 using an X-ray free-electron laser2 to observe light-induced structural changes in the photosynthetic reaction centre of Blastochloris viridis on a timescale of picoseconds. Structural perturbations first occur at the special pair of chlorophyll molecules of the photosynthetic reaction centre that are photo-oxidized by light. Electron transfer to the menaquinone acceptor on the opposite side of the membrane induces a movement of this cofactor together with lower amplitude protein rearrangements. These observations reveal how proteins use conformational dynamics to stabilize the charge-separation steps of electron-transfer reactions.

Suggested Citation

  • Robert Dods & Petra Båth & Dmitry Morozov & Viktor Ahlberg Gagnér & David Arnlund & Hoi Ling Luk & Joachim Kübel & Michał Maj & Adams Vallejos & Cecilia Wickstrand & Robert Bosman & Kenneth R. Beyerle, 2021. "Ultrafast structural changes within a photosynthetic reaction centre," Nature, Nature, vol. 589(7841), pages 310-314, January.
    • Handle: RePEc:nat:nature:v:589:y:2021:i:7841:d:10.1038_s41586-020-3000-7
    DOI: 10.1038/s41586-020-3000-7
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