ArticlePhotosynthesis research2017
Isolation and characterization of PSI-LHCI super-complex and their sub-complexes from a red alga Cyanidioschyzon merolae.
Article in Photosynthesis research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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16 citing papers in PubMed, 37 citations in OpenAlex.
- Roles of LHCSR3 and STT7 in the remodeling of thylakoid supercomplexes in Chlamydomonas reinhardtii under UV-B treatment.The New phytologist · 2026Article
- Transcriptome Analysis Revealed the Copper Ion Uptake by Oocystis borgei from Offshore Polluted Water.Marine biotechnology (New York, N.Y.) · 2025Article
- Comparative analysis of biochemical and sequence features of PSI-LHCI supercomplexes from Cyanidium caldarium NIES-551 and Cyanidiococcus yangmingshanensis NIES-2137.Photosynthesis research · 2025Article
- Transcriptomics Reveals an Energy-Saving Metabolic Switch in an Extremophilic Red MicroalgaInternational journal of molecular sciences · 2025Article
- Biochemical evidence for the diversity of LHCI proteins in PSI-LHCI from the red alga Galdieria sulphuraria NIES-3638.Photosynthesis research · 2025Article
- Structure of the red-shifted Fittonia albivenis photosystem I.Nature communications · 2024Article
- Biochemical and spectroscopic characterization of PSI-LHCI from the red alga Cyanidium caldarium.Photosynthesis research · 2023Article
- Structure, Function, and Variations of the Photosystem I-Antenna Supercomplex from Different Photosynthetic Organisms.Sub-cellular biochemistry · 2022Article
- Antenna arrangement and energy-transfer pathways of PSI-LHCI from the moss Physcomitrella patens.Cell discovery · 2021Article
- Photosynthesis of the Cyanidioschyzon merolae cells in blue, red, and white light.Photosynthesis research · 2021Article
- Structural Diversity of Photosystem I and Its Light-Harvesting System in Eukaryotic Algae and Plants.Frontiers in plant science · 2021Review
- Regulation of photosystem I-light-harvesting complex I from a red alga Cyanidioschyzon merolae in response to light intensities.Photosynthesis research · 2020Article
- Structural basis for energy transfer in a huge diatom PSI-FCPI supercomplex.Nature communications · 2020Article
- Structure and function of photosystem I in Cyanidioschyzon merolae.Photosynthesis research · 2019Article
- Unique organization of photosystem I-light-harvesting supercomplex revealed by cryo-EM from a red alga.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- Molecular Mechanisms of Photoadaptation of Photosystem I Supercomplex from an Evolutionary Cyanobacterial/Algal Intermediate.Plant physiology · 2018Article
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12 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Photosystem I (PSI)-light-harvesting complex I (LHCI) super-complex and its sub-complexes PSI core and LHCI, were purified from a unicellular red alga Cyanidioschyzon merolae and characterized. PSI-LHCI of C. merolae existed as a monomer with a molecular mass of 580 kDa. Mass spectrometry analysis identified 11 subunits (PsaA, B, C, D, E, F, I, J, K, L, O) in the core complex and three LHCI subunits, CMQ142C, CMN234C, and CMN235C in LHCI, indicating that at least three Lhcr subunits associate with the red algal PSI core. PsaG was not found in the red algae PSI-LHCI, and we suggest that the position corresponding to Lhca1 in higher plant PSI-LHCI is empty in the red algal PSI-LHCI. The PSI-LHCI complex was separated into two bands on native PAGE, suggesting that two different complexes may be present with slightly different protein compositions probably with respective to the numbers of Lhcr subunits. Based on the results obtained, a structural model was proposed for the red algal PSI-LHCI. Furthermore, pigment analysis revealed that the C. merolae PSI-LHCI contained a large amount of zeaxanthin, which is mainly associated with the LHCI complex whereas little zeaxanthin was found in the PSI core. This indicates a unique feature of the carotenoid composition of the Lhcr proteins and may suggest an important role of Zea in the light-harvesting and photoprotection of the red algal PSI-LHCI complex.
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