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Symmetry matters for the electronic structure of core complexes from Rhodopseudomonas palustris and Rhodobacter sphaeroides PufX⁻

Title data

Richter, Martin F. ; Baier, Jürgen ; Prem, T. ; Oellerich, Silke ; Francia, Francesco ; Venturoli, Giovanni ; Oesterhelt, Dieter ; Southall, June ; Cogdell, Richard J. ; Köhler, Jürgen:
Symmetry matters for the electronic structure of core complexes from Rhodopseudomonas palustris and Rhodobacter sphaeroides PufX⁻.
In: Proceedings of the National Academy of Sciences of the United States of America. Vol. 104 (2007) Issue 16 . - pp. 6661-6665.
ISSN 1091-6490
DOI: https://doi.org/10.1073/pnas.0611115104

Abstract in another language

Low-temperature (1.4 K), single-molecule fluorescence-excitation spectra have been recorded for individual reaction center-light-harvesting 1 complexes from Rhodopseudomonas palustris and the PufX(-) strain of Rhodobacter sphaeroides. More than 80% of the complexes from Rb. sphaeroides show only broad absorption bands, whereas nearly all of the complexes from Rps. palustris also have a narrow line at the low-energy end of their spectrum. We describe how the presence of this narrow feature indicates the presence of a gap in the electronic structure of the light-harvesting 1 complex from Rps. palustris, which provides strong support for the physical gap that was previously modeled in its x-ray crystal structure.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Single-molecule spectroscopy
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Lehrstuhl Experimentalphysik IX - Spektroskopie weicher Materie > Lehrstuhl Experimentalphysik IX - Spektroskopie weicher Materie - Univ.-Prof. Dr. Jürgen Köhler
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Lehrstuhl Experimentalphysik IX - Spektroskopie weicher Materie
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 11 Apr 2018 12:32
Last Modified: 11 Apr 2018 12:32
URI: https://eref.uni-bayreuth.de/id/eprint/43390