Journal Article

PUBDB-2020-04809

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Ultrafast structural changes within a photosynthetic reaction centre

Dods, R. ; Båth, P. ; Morozov, D. ; Gagnér, V. A. ; Arnlund, D. ; Luk, H. L. ; Kübel, J. ; Maj, M. ; Vallejos, A. ; Wickstrand, C. ; Bosman, R.Extern* ; Beyerlein, K. R.CFEL*MPG* ; Nelson, G.Extern* ; Liang, M. ; Milathianaki, D. ; Robinson, J. ; Harimoorthy, R.Extern*EMBL* ; Berntsen, P.Extern*XFEL.EU* ; Malmerberg, E. ; Johansson, L. ; Andersson, R.Extern*XFEL.EU* ; Carbajo, S.DESY* ; Claesson, E.Extern*EMBL* ; Smith, C.Extern*XFEL.EU* ; Dahl, P.Extern*XFEL.EU* ; Hammarin, G. ; Hunter, M.Extern*XFEL.EU* ; Li, C.CFEL*XFEL.EU*DESY* ; Lisova, S.Extern*XFEL.EU* ; Royant, A.Extern*EMBL* ; Safari, C.Extern*XFEL.EU* ; Sharma, A. ; Williams, G.Extern*XFEL.EU* ; Yefanov, O.CFEL*EMBL*DESY* ; Westenhoff, S.Extern*EMBL* ; Davidsson, J. ; DePonte, D. P.Extern* ; Boutet, S.Extern* ; Barty, A.CFEL*DESY* ; Katona, G.Extern*EMBL* ; Groenhof, G.Extern*XFEL.EU* ; Branden, G.Extern*EMBL* ; Neutze, R. (Corresponding author)Extern*XFEL.EU*

2021
Macmillan Publishers Limited, part of Springer Nature London

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Please use a persistent id in citations: doi:10.1038/s41586-020-3000-7  doi:10.3204/PUBDB-2020-04809

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.

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Contributing Institute(s):

1. FS-CFEL-1 (Group Leader: Henry Chapman) (CFEL-I)
2. CFEL-Coherent X-Ray Imaging (FS-CFEL-1)

Research Program(s):

1. 633 - Life Sciences – Building Blocks of Life: Structure and Function (POF4-633) (POF4-633)
2. X-probe - Advanced XFEL and Synchrotron based Probes of Protein Structure and Dynamics (637295) (637295)

Experiment(s):

1. Measurement at external facility

Appears in the scientific report 2021

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Database coverage:
; ; BIOSIS Previews ; Biological Abstracts ; Chemical Reactions ; Clarivate Analytics Master Journal List ; Current Contents - Agriculture, Biology and Environmental Sciences ; Current Contents - Life Sciences ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 40 ; Index Chemicus ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection ; Zoological Record

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