|Comayras F, Jungas C, Lavergne J. Functional consequences of the organization of the photosynthetic apparatus in Rhodobacter sphaeroides. I. Quinone domains and excitation transfer in chromatophores and reaction center.antenna complexes. J Biol Chem. 2005 Mar 25280(12):11203-13PubMed ID15632164
|The purpose of this study was to gain information on the functional consequences of the supramolecular organization of the photosynthetic apparatus in the bacterium Rhodobacter sphaeroides. Isolated complexes of the reaction center (RC) with its core antenna ring (light-harvesting complex 1 (LH1)) were studied in their dimeric (native) form or as monomers with respect to excitation transfer and distribution of the quinone pool.
|There is a larger average stoichiometry (of quinones) in chromatophores (i.e. 15–25 compared with 6 in thylakoids), which entails smaller relative statistical fluctuations.