ArticlePhotosynthesis research2018
Evolution of photosynthetic reaction centers: insights from the structure of the heliobacterial reaction center.
Article in Photosynthesis research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.
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Who cites it
35 citing papers in PubMed, 78 citations in OpenAlex.
- Excitonic Structure and Primary Charge Separation in Purple Bacterial and Heliobacterial Reaction Centers.Plants (Basel, Switzerland) · 2026Review
- Synthesis of bacteriochlorophyllChemical science · 2026Article
- Molecular design principles for Photosystem I-based biohybrid solar fuel catalysts.bioRxiv : the preprint server for biology · 2026Article
- Photosynthesis Has Been Established Only Once-Evolution of Photosynthetic Reaction Center Proteins and Bacteriochlorophyll Biosynthesis.Current issues in molecular biology · 2026Article
- Cyanobacterial redox carriers support photosynthesis in a purple phototrophic bacterium.The Biochemical journal · 2025Article
- Sulfate assimilation regulates antioxidant defense response of the cyanobacteriumApplied and environmental microbiology · 2025Article
- Inter-cofactor protein remodeling rewires short-circuited transmembrane electron transfer.Communications chemistry · 2025Article
- Identification and characterization of the low molecular mass ferredoxins involved in central metabolism in Heliomicrobium modesticaldum.Photosynthesis research · 2024Article
- Illuminating the coevolution of photosynthesis and Bacteria.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Trace gas oxidation sustains energy needs of a thermophilic archaeon at suboptimal temperatures.Nature communications · 2024Article
- What We Are Learning from the Diverse Structures of the Homodimeric Type I Reaction Center-Photosystems of Anoxygenic Phototropic Bacteria.Biomolecules · 2024Review
- Electronic Structures of Radical-Pair-Forming Cofactors in a Heliobacterial Reaction Center.Molecules (Basel, Switzerland) · 2024Article
- Mechanism of Asparagine-Mediated Proton Transfer in Photosynthetic Reaction Centers.Biochemistry · 2023Article
- The Special and General Mechanism of Cyanobacterial Harmful Algal Blooms.Microorganisms · 2023Review
- Energetic Diversity in the Electron-Transfer Pathways of Type I Photosynthetic Reaction Centers.Biochemistry · 2023Article
- Structure of the Acidobacteria homodimeric reaction center bound with cytochrome c.Nature communications · 2022Article
- Energetics of the Electron Transfer Pathways in the Homodimeric Photosynthetic Reaction Center.Biochemistry · 2022Article
- Comparison of PsbQ and Psb27 in photosystem II provides insight into their roles.Photosynthesis research · 2022Article
- The PshX subunit of the photochemical reaction center from Heliobacterium modesticaldum acts as a low-energy antenna.Photosynthesis research · 2022Article
- Recent advances in the structural diversity of reaction centers.Photosynthesis research · 2021Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
The proliferation of phototrophy within early-branching prokaryotes represented a significant step forward in metabolic evolution. All available evidence supports the hypothesis that the photosynthetic reaction center (RC)-the pigment-protein complex in which electromagnetic energy (i.e., photons of visible or near-infrared light) is converted to chemical energy usable by an organism-arose once in Earth's history. This event took place over 3 billion years ago and the basic architecture of the RC has diversified into the distinct versions that now exist. Using our recent 2.2-Å X-ray crystal structure of the homodimeric photosynthetic RC from heliobacteria, we have performed a robust comparison of all known RC types with available structural data. These comparisons have allowed us to generate hypotheses about structural and functional aspects of the common ancestors of extant RCs and to expand upon existing evolutionary schemes. Since the heliobacterial RC is homodimeric and loosely binds (and reduces) quinones, we support the view that it retains more ancestral features than its homologs from other groups. In the evolutionary scenario we propose, the ancestral RC predating the division between Type I and Type II RCs was homodimeric, loosely bound two mobile quinones, and performed an inefficient disproportionation reaction to reduce quinone to quinol. The changes leading to the diversification into Type I and Type II RCs were separate responses to the need to optimize this reaction: the Type I lineage added a [4Fe-4S] cluster to facilitate double reduction of a quinone, while the Type II lineage heterodimerized and specialized the two cofactor branches, fixing the quinone in the Q
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