ArticleNature plants2023
Cryo-EM structures of LHCII in photo-active and photo-protecting states reveal allosteric regulation of light harvesting and excess energy dissipation.
Article in Nature plants, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed, 44 citations in OpenAlex.
- Pseudomonas chlororaphis IRHB3 suppresses Soybean mosaic virus by coordinating photosynthetic protection, ROS homeostasis and hormone-mediated immunity.Pest management science · 2026Article
- LHCSR1 Functions as a Dimmer Switch for Light Harvesting.The journal of physical chemistry letters · 2026Article
- Rapid Adaptation of Cyanobacteria to Environmental Perturbations Is Achieved Through Structural Remodeling of the Proteome.Molecular & cellular proteomics : MCP · 2026Article
- Dissecting the contributions to non-photochemical quenching in a land plant under fluctuating light.Nature communications · 2026Article
- The role of far-red fluorescing chlorophylls in the quenching of LHCII.Photosynthesis research · 2026Article
- Article
- Distinctive and functional pigment arrangements in Lhcp, a prasinophyte-specific photosynthetic light-harvesting complex.Communications biology · 2025Article
- Nonphotochemical quenching in plants: Mechanisms and mysteries.The Plant cell · 2025Review
- Mechanisms underpinning natural variation in non-photochemical quenching kinetics.Biochemical Society transactions · 2025Review
- Structure, regulation and assembly of the photosynthetic electron transport chain.Nature reviews. Molecular cell biology · 2025Review
- Reduction of Exciton Diffusion Length with Genetically Tuned Non-Photochemical Quenching in Plant Thylakoid Membranes.The journal of physical chemistry letters · 2025Article
- Macroscale optimal size of ICM vesicles regulated by quantum design principle in LH2 structure.Biophysical journal · 2025Article
- Simulations of Excitonic Couplings in Spinach Light-Harvesting Complex II Using a More Realistic Model in the Presence of Photosystem II Core.ACS omega · 2025Article
- Article
- Pennate diatoms make non-photochemical quenching as simple as possible but not simpler.Nature communications · 2025Article
- In vivo two-photon FLIM resolves photosynthetic properties of maize bundle sheath cells.Photosynthesis research · 2025Article
- Unravelling the different components of nonphotochemical quenching using a novel analytical pipeline.The New phytologist · 2025Article
- Evidence for a transfer-to-trap mechanism of fluorophore concentration quenching in lipid bilayers.Biophysical journal · 2024Article
- Article
- Hydrophobic Mismatch in the Thylakoid Membrane Regulates Photosynthetic Light Harvesting.Journal of the American Chemical Society · 2024Article
Corrections and comments
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Authors and funding
12 authors at 6 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The major light-harvesting complex of photosystem II (LHCII) has a dual regulatory function in a process called non-photochemical quenching to avoid the formation of reactive oxygen. LHCII undergoes reversible conformation transitions to switch between a light-harvesting state for excited-state energy transfer and an energy-quenching state for dissipating excess energy under full sunshine. Here we report cryo-electron microscopy structures of LHCII in membrane nanodiscs, which mimic in vivo LHCII, and in detergent solution at pH 7.8 and 5.4, respectively. We found that, under low pH conditions, the salt bridges at the lumenal side of LHCII are broken, accompanied by the formation of two local α-helices on the lumen side. The formation of α-helices in turn triggers allosterically global protein conformational change, resulting in a smaller crossing angle between transmembrane helices. The fluorescence decay rates corresponding to different conformational states follow the Dexter energy transfer mechanism with a characteristic transition distance of 5.6 Å between Lut1 and Chl612. The experimental observations are consistent with the computed electronic coupling strengths using multistate density function theory.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.