ArticleCommunications biology2021
Dimeric and high-resolution structures of Chlamydomonas Photosystem I from a temperature-sensitive Photosystem II mutant.
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 13 papers.
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13 citing papers in PubMed, 18 citations in OpenAlex.
- Structural Conservation of the AACS omega · 2026Article
- Cryo-EM structure of Chlamydomonas reinhardtii Photosystem I complexed with cytochrome cNature communications · 2026Article
- Molecular architecture for state transition: insights from structural biology and evolutionary trajectories.Plant & cell physiology · 2025Review
- Genome editing in the green alga Chlamydomonas: past, present practice and future prospects.The Plant journal : for cell and molecular biology · 2025Review
- Development of a TSR-based method for understanding structural relationships of cofactors and local environments in photosystem I.BMC bioinformatics · 2025Article
- Light-Driven HPlants (Basel, Switzerland) · 2024Review
- Chemical Protein Crosslinking-Coupled Mass Spectrometry Reveals Interaction of LHCI with LHCII and LHCSR3 inPlants (Basel, Switzerland) · 2024Article
- Investigating the Balance between Structural Conservation and Functional Flexibility in Photosystem I.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
- Coupling and Slips in Photosynthetic Reactions-From Femtoseconds to Eons.Plants (Basel, Switzerland) · 2023Article
- Structure of Photosystem I Supercomplex Isolated from aBiomolecules · 2023Article
- Remodeling of algal photosystem I through phosphorylation.Bioscience reports · 2023Article
- Algal photosystem I dimer and high-resolution model of PSI-plastocyanin complex.Nature plants · 2022Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
Water molecules play a pivotal functional role in photosynthesis, primarily as the substrate for Photosystem II (PSII). However, their importance and contribution to Photosystem I (PSI) activity remains obscure. Using a high-resolution cryogenic electron microscopy (cryo-EM) PSI structure from a Chlamydomonas reinhardtii temperature-sensitive photoautotrophic PSII mutant (TSP4), a conserved network of water molecules - dating back to cyanobacteria - was uncovered, mainly in the vicinity of the electron transport chain (ETC). The high-resolution structure illustrated that the water molecules served as a ligand in every chlorophyll that was missing a fifth magnesium coordination in the PSI core and in the light-harvesting complexes (LHC). The asymmetric distribution of the water molecules near the ETC branches modulated their electrostatic landscape, distinctly in the space between the quinones and FX. The data also disclosed the first observation of eukaryotic PSI oligomerisation through a low-resolution PSI dimer that was comprised of PSI-10LHC and PSI-8LHC.
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