ArticleCommunications biology2021
Cryo-EM structure of a functional monomeric Photosystem I from Thermosynechococcus elongatus reveals red chlorophyll cluster.
Article in Communications biology, 2021. 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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22 citing papers in PubMed, 43 citations in OpenAlex.
- High-resolution structure of monomeric photosystem I from Thermosynechococcus vestitus.Photosynthesis research · 2026Article
- Structural basis of Neisseria meningitidis quinol dependent nitric oxide reductase activation by dimerization.Communications biology · 2026Article
- A large-scale curated and filterable dataset for cryo-EM foundation model pre-training.Scientific data · 2025Article
- Structure and evolution of photosystem I in the early-branching cyanobacteriumProceedings of the National Academy of Sciences of the United States of America · 2025Article
- Counteranion Effects on the Incorporation of Photosystem I with Poly(3,4-ethylenedioxythiophene) (PEDOT).ACS omega · 2025Article
- Development of a TSR-based method for understanding structural relationships of cofactors and local environments in photosystem I.BMC bioinformatics · 2025Article
- Coaggregation Occurs between a Piliated Unicellular Cyanobacterium,Microorganisms · 2024Article
- Presence of low-energy chlorophylls d in photosystem I trimer and monomer cores isolated from Acaryochloris sp. NBRC 102871.Photosynthesis research · 2024Article
- Photosystem I: A Paradigm for Understanding Biological Environmental Adaptation Mechanisms in Cyanobacteria and Algae.International journal of molecular sciences · 2024Review
- Impact of Peripheral Hydrogen Bond on Electronic Properties of the Primary Acceptor Chlorophyll in the Reaction Center of Photosystem I.International journal of molecular sciences · 2024Article
- Thermophilic cyanobacteria-exciting, yet challenging biotechnological chassis.Applied microbiology and biotechnology · 2024Review
- Isolation and characterization of trimeric and monomeric PSI cores from Acaryochloris marina MBIC11017.Photosynthesis research · 2023Article
- Absolute quantification of cellular levels of photosynthesis-related proteins in Synechocystis sp. PCC 6803.Photosynthesis research · 2023Article
- Structures of multisubunit membrane complexes with the CRYO ARM 200.Microscopy (Oxford, England) · 2022Article
- The progressive spectral signal-to-noise ratio of cryo-electron micrograph movies as a tool to assess quality and radiation damage.Computer methods and programs in biomedicine · 2022Article
- The influence of electron utilization pathways on photosystem I photochemistry inRSC advances · 2022Article
- Structural basis for the absence of low-energy chlorophylls in a photosystem I trimer fromeLife · 2022Article
- Recent Technical Advances in Sample Preparation for Single-Particle Cryo-EM.Frontiers in molecular biosciences · 2022Review
- Structure Insights Into Photosystem I Octamer From Cyanobacteria.Frontiers in microbiology · 2022Article
- Photosystem I integrated into mesoporous microspheres has enhanced stability and photoactivity in biohybrid solar cells.Materials today. Bio · 2021Article
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Authors and funding
10 authors at 5 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A high-resolution structure of trimeric cyanobacterial Photosystem I (PSI) from Thermosynechococcus elongatus was reported as the first atomic model of PSI almost 20 years ago. However, the monomeric PSI structure has not yet been reported despite long-standing interest in its structure and extensive spectroscopic characterization of the loss of red chlorophylls upon monomerization. Here, we describe the structure of monomeric PSI from Thermosynechococcus elongatus BP-1. Comparison with the trimer structure gave detailed insights into monomerization-induced changes in both the central trimerization domain and the peripheral regions of the complex. Monomerization-induced loss of red chlorophylls is assigned to a cluster of chlorophylls adjacent to PsaX. Based on our findings, we propose a role of PsaX in the stabilization of red chlorophylls and that lipids of the surrounding membrane present a major source of thermal energy for uphill excitation energy transfer from red chlorophylls to P700.
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