Spectral Diffusion and Electron-Phonon Coupling of the B800 BChl a Molecules in LH2 Complexes from Three Different Species of Purple Bacteria

Baier, J., Gabrielsen, M., Oellerich, S., Michel, H., van Heel, M., Cogdell, R.J. and Köhler, J. (2009) Spectral Diffusion and Electron-Phonon Coupling of the B800 BChl a Molecules in LH2 Complexes from Three Different Species of Purple Bacteria. Biophysical Journal, 97(9), pp. 2604-2612. (doi:10.1016/j.bpj.2009.07.052)

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Publisher's URL: http://dx.doi.org/10.1016/j.bpj.2009.07.052

Abstract

We have investigated the spectral diffusion and the electron-phonon coupling of B800 bacteriochlorophyll a molecules in the peripheral light-harvesting complex LH2 for three different species of purple bacteria, Rhodobacter sphaeroides, Rhodospirillum molischianum, and Rhodopseudomonas acidophila. We come to the conclusion that B800 binding pockets for Rhodobacter sphaeroides and Rhodopseudomonas acidophila are rather similar with respect to the polarity of the protein environment but that the packaging of the [alpha][beta]-polypeptides seems to be less tight in Rb. sphaeroides with respect to the other two species

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Cogdell, Professor Richard and Gabrielsen, Dr Mads
Authors: Baier, J., Gabrielsen, M., Oellerich, S., Michel, H., van Heel, M., Cogdell, R.J., and Köhler, J.
College/School:College of Medical Veterinary and Life Sciences > Institute of Molecular Cell and Systems Biology
Journal Name:Biophysical Journal
ISSN:0006-3495

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
303032The structure and function of purple bacterial antenna complexesRichard CogdellBiotechnology and Biological Sciences Research Council (BBSRC)BB/D000610/1Institute of Molecular Cell and Systems Biology