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Refinement of the x-ray structure of the RC-LH1 core complex from Rhodopseudomonas palustris by single-molecule spectroscopy

Title data

Richter, Martin F. ; Baier, Jürgen ; Southall, June ; Cogdell, Richard J. ; Oellerich, Silke ; Köhler, Jürgen:
Refinement of the x-ray structure of the RC-LH1 core complex from Rhodopseudomonas palustris by single-molecule spectroscopy.
In: Proceedings of the National Academy of Sciences of the United States of America. Vol. 104 (2007) Issue 51 . - pp. 20280-20284.
ISSN 1091-6490
DOI: https://doi.org/10.1073/pnas.0704599105

Abstract in another language

A unique combination of single-molecule spectroscopy with numerical simulations has allowed us to achieve a refined structural model for the bacteriochlorophyll a (BChl a) pigment arrangement in reaction centerlight-harvesting 1 core complexes of Rhodopseudomonas palustris. Details in the optical spectra, such as spectral separation and mutual polarizations of spectral bands, are compared with results from numerical simulations for various models of the BChl a arrangement that were all well within the 4.8-A limit of the accuracy of the available x-ray structure. The experimental data are consistent with a geometry where 15 BChl a dimers, each taken homologous to those from light-harvesting 2 complex from Rhodopseudomonas acidophila, are arranged in an overall elliptical structure featuring a gap on the long side of the ellipse.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: supramolecular arrangement
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 12:35
Last Modified: 11 Apr 2018 12:35
URI: https://eref.uni-bayreuth.de/id/eprint/43394