title: Light harvesting by lamellar chromatophores in Rhodospirillum photometricum.
abstract: 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.
authors.affiliation: Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, Illinois.
authors.forename: Danielle E
authors.initials: DE
authors.lastname: Chandler
authors.affiliation: Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, Illinois; Center for Biophysics and Computational Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois.
authors.forename: Johan
authors.initials: J
authors.lastname: Strümpfer
authors.affiliation: Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, Illinois.
authors.forename: Melih
authors.initials: M
authors.lastname: Sener
authors.affiliation: U1006 INSERM, Aix-Marseille Université, Parc Scientifique et Technologique de Luminy, 163 avenue de Luminy, 13009 Marseille, France.
authors.forename: Simon
authors.initials: S
authors.lastname: Scheuring
authors.affiliation: Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois. Electronic address: kschulte@ks.uiuc.edu.
authors.forename: Klaus
authors.initials: K
authors.lastname: Schulten
mesh_terms: D065966:Absorption, Physicochemical; D000595:Amino Acid Sequence; D020130:Bacterial Chromatophores / Q000737:chemistry* / Q000378:metabolism; D001426:Bacterial Proteins / Q000737:chemistry* / Q000378:metabolism; D045342:Light-Harvesting Protein Complexes / Q000737:chemistry* / Q000378:metabolism; D056004:Molecular Dynamics Simulation; D008969:Molecular Sequence Data; D017434:Protein Structure, Tertiary; D012246:Rhodospirillum / Q000737:chemistry* / Q000378:metabolism
chemical_list: D001426:Bacterial Proteins; D045342:Light-Harvesting Protein Complexes