Photosynthetic light-harvesting complexes have a remarkable capacity to perform robust photo-physics at ambient temperatures and in fluctuating environments. Protein conformational dynamics and membrane mobility are processes that contribute to the light-harvesting efficiencies and control photoprotective responses. This short review describes the application of magic angle spinning nuclear magnetic resonance (NMR) spectroscopy for characterizing the structural dynamics of pigment, protein, and thylakoid membrane components related to light harvesting and photoprotection. I will discuss the use of dynamics-based spectral editing solid-state NMR for distinguishing rigid and mobile components and assessing protein, pigment, and lipid dynamics on sub-nanosecond to millisecond timescales. Dynamic spectral editing NMR has been applied to investigate light-harvesting complex II protein conformational dynamics inside lipid bilayers and in native membranes. Furthermore, we used the NMR approach to assess thylakoid membrane dynamics. Finally, it is shown that dynamics-based spectral editing NMR for reducing spectral complexity by filtering motion-dependent signals enabled us to follow processes in live photosynthetic cells.
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14 July 2022
Review Article|
July 08 2022
Structural dynamics of light harvesting proteins, photosynthetic membranes, and cells observed by spectral editing solid-state NMR
Special Collection:
Photosynthetic Light-Harvesting and Energy Conversion
Anjali Pandit
Anjali Pandit
a)
(Writing – original draft, Writing – review and editing)
Department of Solid-State NMR, Leiden Institute of Chemistry, Leiden University
, Einsteinweg 55, 2333 CC Leiden, The Netherlands
a)Author to whom correspondence should be addressed: a.pandit@lic.leidenuniv.nl
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a)Author to whom correspondence should be addressed: a.pandit@lic.leidenuniv.nl
Note: This paper is part of the JCP Special Topic on Photosynthetic Light-Harvesting and Energy Conversion.
J. Chem. Phys. 157, 025101 (2022)
Article history
Received:
April 03 2022
Accepted:
June 14 2022
Citation
Anjali Pandit; Structural dynamics of light harvesting proteins, photosynthetic membranes, and cells observed by spectral editing solid-state NMR. J. Chem. Phys. 14 July 2022; 157 (2): 025101. https://doi.org/10.1063/5.0094446
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