ArticleNature communications2023
Energetic robustness to large scale structural fluctuations in a photosynthetic supercomplex.
Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 17 citations in OpenAlex.
- Article
- Antenna photosystem I remodeling in the iron stress-induced complex fromScience advances · 2026Article
- Structural basis for the assembly and energy transfer between the cyanobacterial PSI core and the double-layered IsiA proteins.Nature communications · 2025Article
- Measuring multisubunit mechanics of geometrically programmed colloidal assemblies via cryo-EM multi-body refinement.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Development of a TSR-based method for understanding structural relationships of cofactors and local environments in photosystem I.BMC bioinformatics · 2025Article
- Modeling Diffusive Motion of Ferredoxin and Plastocyanin on the PSI Domain ofThe journal of physical chemistry. B · 2025Article
- Phylogenetic and spectroscopic insights on the evolution of core antenna proteins in cyanobacteria.Photosynthesis research · 2024Article
- The structural basis for light harvesting in organisms producing phycobiliproteins.The Plant cell · 2024Review
- Lighting the way: Compelling open questions in photosynthesis research.The Plant cell · 2024Article
- Photosystem I: A Paradigm for Understanding Biological Environmental Adaptation Mechanisms in Cyanobacteria and Algae.International journal of molecular sciences · 2024Review
- Structure of the red-shifted Fittonia albivenis photosystem I.Nature communications · 2024Article
- High-Resolution Frequency-Domain Spectroscopic and Modeling Studies of Photosystem I (PSI), PSI Mutants and PSI Supercomplexes.International journal of molecular sciences · 2024Review
- Inhomogeneous energy transfer dynamics from iron-stress-induced protein A to photosystem I.Frontiers in plant science · 2024Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Photosynthetic organisms transport and convert solar energy with near-unity quantum efficiency using large protein supercomplexes held in flexible membranes. The individual proteins position chlorophylls to tight tolerances considered critical for fast and efficient energy transfer. The variability in protein organization within the supercomplexes, and how efficiency is maintained despite variability, had been unresolved. Here, we report on structural heterogeneity in the 2-MDa cyanobacterial PSI-IsiA photosynthetic supercomplex observed using Cryo-EM, revealing large-scale variances in the positions of IsiA relative to PSI. Single-molecule measurements found efficient IsiA-to-PSI energy transfer across all conformations, along with signatures of transiently decoupled IsiA. Structure based calculations showed that rapid IsiA-to-PSI energy transfer is always maintained, and even increases by three-fold in rare conformations via IsiA-specific chls. We postulate that antennae design mitigates structural fluctuations, providing a mechanism for robust energy transfer in the flexible membrane.
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