ArticleBiophysical journal2009
Single-molecule spectroscopy reveals that individual low-light LH2 complexes from Rhodopseudomonas palustris 2.1.6. have a heterogeneous polypeptide composition.
Article in Biophysical journal, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed.
- Trade-offs between light absorption and energy transfer in a marine light-harvesting complex 2.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
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- Preprocess dependence of optical properties of ensembles and single siphonaxanthin-containing major antenna from the marine green alga Codium fragile.Scientific reports · 2022Article
- The 2.4 Å cryo-EM structure of a heptameric light-harvesting 2 complex reveals two carotenoid energy transfer pathways.Science advances · 2021Article
- Cryo-EM structure of a CaNature communications · 2020Article
- A New Type of Light-Harvesting Complex Detected when Growing Rhodopseudomonas palustris under Low Light Intensity Conditions.Doklady. Biochemistry and biophysics · 2020Article
- Article
- The molecular mechanisms of light adaption in light-harvesting complexes of purple bacteria revealed by a multiscale modeling.Chemical science · 2019Article
- Simulating Fluorescence-Detected Two-Dimensional Electronic Spectroscopy of Multichromophoric Systems.The journal of physical chemistry. B · 2019Article
- Spatially-resolved fluorescence-detected two-dimensional electronic spectroscopy probes varying excitonic structure in photosynthetic bacteria.Nature communications · 2018Article
- Energy transfer in purple bacterial photosynthetic units from cells grown in various light intensities.Photosynthesis research · 2018Article
- Characterisation of a pucBA deletion mutant from Rhodopseudomonas palustris lacking all but the pucBAPhotosynthesis research · 2018Article
- Contribution of low-temperature single-molecule techniques to structural issues of pigment-protein complexes from photosynthetic purple bacteria.Journal of the Royal Society, Interface · 2018Review
- Dark States in the Light-Harvesting complex 2 Revealed by Two-dimensional Electronic Spectroscopy.Scientific reports · 2016Article
- Elementary Energy Transfer Pathways in Allochromatium vinosum Photosynthetic Membranes.Biophysical journal · 2015Article
- Conformational switching in a light-harvesting protein as followed by single-molecule spectroscopy.Biophysical journal · 2015Article
- The origin of the split B800 absorption peak in the LH2 complexes from Allochromatium vinosum.Photosynthesis research · 2015Article
- Statistical considerations on the formation of circular photosynthetic light-harvesting complexes from Rhodopseudomonas palustris.Photosynthesis research · 2014Article
- Strong antenna-enhanced fluorescence of a single light-harvesting complex shows photon antibunching.Nature communications · 2014Article
- Single-molecule spectroscopy unmasks the lowest exciton state of the B850 assembly in LH2 from Rps. acidophila.Biophysical journal · 2014Article
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7 authors.
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Abstract
Rhodopseudomonas palustris belongs to the group of purple bacteria that have the ability to produce LH2 complexes with unusual absorption spectra when they are grown at low-light intensity. This ability is often related to the presence of multiple genes encoding the antenna apoproteins. Here we report, for the first time to our knowledge, direct evidence that individual low-light LH2 complexes have a heterogeneous alphabeta-apoprotein composition that modulates the site energies of Bchl a molecules, producing absorption bands at 800, 820, and 850 nm. The arrangement of the Bchl a molecules in the "tightly coupled ring" can be modeled by nine alphabeta-Bchls dimers, such that the Bchls bound to six alphabeta-pairs have B820-like site energies and the remaining Bchl a molecules have B850-like site energies. Furthermore, the experimental data can only be satisfactorily modeled when these six alphabeta-pairs with B820 Bchl a molecules are distributed such that the symmetry of the assembly is reduced to C(3). It is also clear from the measured single-molecule spectra that the energies of the electronically excited states in the mixed B820/850 ring are mainly influenced by diagonal disorder.
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