1. Light Harvesting by Lamellar Chromatophores in Rhodospirillum photometricum
- Author
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Danielle E. Chandler, Melih Sener, Simon Scheuring, Johan Strümpfer, Klaus Schulten, Beckman Institute [Illinois at Urbana-Champaign, USA], University of Illinois at Urbana-Champaign [Urbana], University of Illinois System-University of Illinois System, Center for Biophysics and Computational Biology [Illinois at Urbana-Champaign, USA], BIO-AFM-LAB Bio Atomic Force Microscopy Laboratory (Bio-AFM-Lab), Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Department of Physics [Illinois at Urbana-Champaign, USA], and Aix-Marseille Université, U1006
- Subjects
Rhodospirillum ,Rhodospirillum photometricum ,Atomic force microscopy ,Molecular Sequence Data ,Light-Harvesting Protein Complexes ,Biophysics ,Bacterial Chromatophores ,Molecular Dynamics Simulation ,Biology ,Chromatophore ,Protein Structure, Tertiary ,Bacterial protein ,Absorption, Physicochemical ,Bacterial Proteins ,Biochemistry ,[SDV.BBM] Life Sciences [q-bio]/Biochemistry, Molecular Biology ,[SDV.BBM]Life Sciences [q-bio]/Biochemistry, Molecular Biology ,Lamellar structure ,Amino Acid Sequence ,Photosynthetic bacteria ,Proteins and Nucleic Acids - Abstract
International audience; Purple photosynthetic bacteria harvest light using pigment-protein complexes which are often arranged in pseudo-organelles called chromatophores. A model of a chromatophore from Rhodospirillum photometricum was constructed based on atomic force microscopy data. Molecular-dynamics simulations and quantum-dynamics calculations were performed to characterize the intercomplex excitation transfer network and explore the interplay between close-packing and light-harvesting efficiency.
- Published
- 2014
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