A1 Journal article (refereed)
Ultrafast structural changes within a photosynthetic reaction centre (2021)
Dods, R., Båth, P., Morozov, D., Gagnér, V. A., Arnlund, D., Luk, H. L., Kübel, J., Maj, M., Vallejos, A., Wickstrand, C., Bosman, R., Beyerlein, K. R., Nelson, G., Liang, M., Milathianaki, D., Robinson, J., Harimoorthy, R., Berntsen, P., Malmerberg, E., . . . Neutze, R. (2021). Ultrafast structural changes within a photosynthetic reaction centre. Nature, 589(7841), 310-314. https://doi.org/10.1038/s41586-020-3000-7
JYU authors or editors
Publication details
All authors or editors: Dods, Robert; Båth, Petra; Morozov, Dmitry; Gagnér, Viktor Ahlberg; Arnlund, David; Luk, Hoi Ling; Kübel, Joachim; Maj, Michał; Vallejos, Adams; Wickstrand, Cecilia; et al.
Journal or series: Nature
ISSN: 0028-0836
eISSN: 1476-4687
Publication year: 2021
Publication date: 02/12/2020
Volume: 589
Issue number: 7841
Pages range: 310-314
Publisher: Nature Publishing Group
Publication country: United Kingdom
Publication language: English
DOI: https://doi.org/10.1038/s41586-020-3000-7
Publication open access: Not open
Publication channel open access:
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/73626
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.
Keywords: bioenergetics; photosynthesis; bacteria; chlorophyll; membranes; x-ray crystallography
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Ministry reporting: Yes
Reporting Year: 2021
JUFO rating: 3