Bacteriochlorophyll-protein complex

K Sauer and LA Austin (1978) Bacteriochlorophyll-protein complexes from the light-harvesting antenna of the photosynthetic bacteria. Biochemistry 17 2011-2019... 

Prince SM, Papiz, MZ, Freer AA, McDermott G, Hawthornthwaite-Lawless AM, Cogdell RJ and Isaacs NW (1977) Apoprotein structure in the LH2 complex from Rhodopseudomonas acidophila strain 10050 Modular assembly and protein pigment interactions. J Mol Biol 268 412-423 Pullerits T and Sundstrom V (1996) Photosynthetic lightharvesting pigment-protein complexes Toward understanding how and why. Acc Chem Res 29 381-389 Robert B and Lutz M (1985) Structure of anterma complexes of several Rhodospirillales from their resonance Raman spectra. Biochim Biophys Acta 807 10-23 Sauer K, Cogdell RJ, Prince SM, Freer AA, Isaacs NW and Scheer H (1996) Structure based calculations ofthe optical spectra ofthe LH2 bacteriochlorophyll-protein complex from Rhodopseudomonas acidophila. Photochem Photobiol 64 564-576... 

Reaction centers from photosynthetic organisms are specialized pigment-protein complexes in which photon energy is converted into chemical energy ( ) This is accomplished by a series of rapid electron transfer reactions that produce a spacially-separated oxidized donor and a reduced electron acceptor 2). Reaction centers from the purple photosynthetic bacterium Rhodopseudomonas sphaeroides contain four molecules of bacteriochlorophyll (BChl), two of bac-teriopheophytin (BPh), one tightly-bound or primary ubiquinone (Q), a... 

The CD features of bacteriochlorophyll a in light-harvesting bacteriochlorophy 11-protein complexes from native bacteria is more interesting and is not compatible with Boxer s experiments. Bacteriochlorophyll(Bchl)-protein complexes exhibit various CD spectral profiles, depending on the species of bacteria and their culture conditions 201 206). Thus, CD of Bchl arises from the asymmetric environment in which the Bchl is situated, and from the specialized arrangement which affords a specific interaction between Bchl molecules, as well as from the asymmetry of Bchl... 

J. Kohler, T.J. Aartsma, Single molecule spectroscopy of pigment protein complexes from purple bacteria, in Advances in Photosynthesis and Respiration Vol. 25 Chlorophylls and Bacteriochlorophylls Biochemistry, Biophysics, Functions and Applications (Series ed. Govindjee), ed. by B. Grimm, R.J. Porra, R. Wolfhart, H. Scheer (Springer, Dordrecht, 2004), pp. 309-321... 

A Scherz and WW Parson (1986) Interactions of bacteriochlorophylls in antenna chlorophyll-protein complexes of photosynthetic bacteria. Photosynthesis Res 9 21-32... 

P-OG - octyl-P-glucopyranoside B - stands for h.ulk in, e.g., B850 to designate a lightharvesting BChl-protein complex B - monomeric bacteriochlorophyll /-cytochrome bj ... 

The primary photosynthetic process is carried out by a pigment protein complex the reaction centre (RC) embedded in a lipid bilayer membrane (Figure 6.19) and surrounded by light-harvesting complexes.1477,1481,1482 Thus energy is transferred from LH1 to a bacteriochlorophyll special pair (P) and then through a bacteriochlorophyll molecule (BC monomer) to bacteriopheophytin (BP a chlorophyll molecule lacking the central Mg2 + ion), followed by electron transfer to a quinone Qa in hundreds of ps. The neutral P is then restored by electron transfer from the nearest intermembrane space protein cytochrome c (Cyt c) in hundreds of ns. The rate constants of the... 

It is well established that there is a pair of bacteriochlorophyll molecules (designated Pgyg from the fact that light of 870 nm is the maximum excitation wavelength) in the reaction center of Rhodopseudomonas viridis the critical pair of chlorophylls is embedded in a protein complex that is in turn an integral part of the photosynthetic membrane. (We shall refer to the bacteriochloro-phylls simply as chlorophylls in the interest of simplifying the discussion.)... 

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