ArticleNature communications2022
Molecular asymmetry of a photosynthetic supercomplex from green sulfur bacteria.
Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Role of Small Membrane Proteins in the Green Sulfur Bacterial Reaction Center.ACS physical chemistry Au · 2026Article
- Research progress on the structure of photosynthetic reaction centers-mobile electron carrier supercomplexes.Photosynthesis research · 2026Review
- Modulation of singlet excited state dynamics of bacteriochlorophyll a in Fenna-Matthews-Olson (FMO) complex by PscB, a subunit with an intrinsically disordered region in Chlorobaculum tepidum reaction center.Photosynthesis research · 2025Article
- Article
- Pyrite stimulates the growth and sulfur oxidation capacity of anoxygenic phototrophic sulfur bacteria in euxinic environments.Science advances · 2025Article
- The synergy between the PscC subunits for electron transfer to the PPhotosynthesis research · 2024Article
- Investigating the Balance between Structural Conservation and Functional Flexibility in Photosystem I.International journal of molecular sciences · 2024Review
- Anoxygenic photosynthesis with emphasis on green sulfur bacteria and a perspective for hydrogen sulfide detoxification of anoxic environments.Frontiers in microbiology · 2024Review
- Structure of the Acidobacteria homodimeric reaction center bound with cytochrome c.Nature communications · 2022Article
Corrections and comments
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Authors and funding
14 authors.
Funding
Abstract
The photochemical reaction center (RC) features a dimeric architecture for charge separation across the membrane. In green sulfur bacteria (GSB), the trimeric Fenna-Matthews-Olson (FMO) complex mediates the transfer of light energy from the chlorosome antenna complex to the RC. Here we determine the structure of the photosynthetic supercomplex from the GSB Chlorobaculum tepidum using single-particle cryogenic electron microscopy (cryo-EM) and identify the cytochrome c subunit (PscC), two accessory protein subunits (PscE and PscF), a second FMO trimeric complex, and a linker pigment between FMO and the RC core. The protein subunits that are assembled with the symmetric RC core generate an asymmetric photosynthetic supercomplex. One linker bacteriochlorophyll (BChl) is located in one of the two FMO-PscA interfaces, leading to differential efficiencies of the two energy transfer branches. The two FMO trimeric complexes establish two different binding interfaces with the RC cytoplasmic surface, driven by the associated accessory subunits. This structure of the GSB photosynthetic supercomplex provides mechanistic insight into the light excitation energy transfer routes and a possible evolutionary transition intermediate of the bacterial photosynthetic supercomplex from the primitive homodimeric RC.
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