ArticleNature communications2023
Structure of a monomeric photosystem I core associated with iron-stress-induced-A proteins from Anabaena sp. PCC 7120.
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 14 papers.
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Who cites it
14 citing papers in PubMed, 26 citations in OpenAlex.
- Photosystem I structural fusion with IsiA enhances light-harvesting capabilities of filamentous cyanobacterium during iron deficiency.Cell reports. Physical science · 2026Article
- 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
- Structure and evolution of photosystem I in the early-branching cyanobacteriumProceedings of the National Academy of Sciences of the United States of America · 2025Article
- Article
- Development of a TSR-based method for understanding structural relationships of cofactors and local environments in photosystem I.BMC bioinformatics · 2025Article
- Photoacclimation strategies in cyanobacterial photosynthesis under dynamic light environments: implications in growth, fitness, and biotechnological applications.Frontiers in microbiology · 2025Review
- The structural basis for light harvesting in organisms producing phycobiliproteins.The Plant cell · 2024Review
- Photosystem I: A Paradigm for Understanding Biological Environmental Adaptation Mechanisms in Cyanobacteria and Algae.International journal of molecular sciences · 2024Review
- Limiting factors in the operation of photosystems I and II in cyanobacteria.Microbial biotechnology · 2024Review
- Investigating the Balance between Structural Conservation and Functional Flexibility in Photosystem I.International journal of molecular sciences · 2024Review
- High-Resolution Frequency-Domain Spectroscopic and Modeling Studies of Photosystem I (PSI), PSI Mutants and PSI Supercomplexes.International journal of molecular sciences · 2024Review
- Phycobilisome protein ApcG interacts with PSII and regulates energy transfer in Synechocystis.Plant physiology · 2024Article
- Inhomogeneous energy transfer dynamics from iron-stress-induced protein A to photosystem I.Frontiers in plant science · 2024Article
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Authors and funding
15 authors at 9 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Iron-stress-induced-A proteins (IsiAs) are expressed in cyanobacteria under iron-deficient conditions. The cyanobacterium Anabaena sp. PCC 7120 has four isiA genes; however, their binding property and functional roles in PSI are still missing. We analyzed a cryo-electron microscopy structure of a PSI-IsiA supercomplex isolated from Anabaena grown under an iron-deficient condition. The PSI-IsiA structure contains six IsiA subunits associated with the PsaA side of a PSI core monomer. Three of the six IsiA subunits were identified as IsiA1 and IsiA2. The PSI-IsiA structure lacks a PsaL subunit; instead, a C-terminal domain of IsiA2 occupies the position of PsaL, which inhibits the oligomerization of PSI, leading to the formation of a PSI monomer. Furthermore, excitation-energy transfer from IsiAs to PSI appeared with a time constant of 55 ps. These findings provide insights into both the molecular assembly of the Anabaena IsiA family and the functional roles of IsiAs.
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