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Rhodopseudomonas acidophila

Figure 12.17 Computer-generated diagram of the stmcture of light-harvesting complex LH2 from Rhodopseudomonas acidophila. Nine a chains (gray) and nine p chains Bight blue) form two rings of transmembrane helices between which are bound nine carotenoids (yellow) and 27 bacteriochlorophyll molecules (red, green and dark blue). (Courtesy of M.Z. Papiz.)... Figure 12.17 Computer-generated diagram of the stmcture of light-harvesting complex LH2 from Rhodopseudomonas acidophila. Nine a chains (gray) and nine p chains Bight blue) form two rings of transmembrane helices between which are bound nine carotenoids (yellow) and 27 bacteriochlorophyll molecules (red, green and dark blue). (Courtesy of M.Z. Papiz.)...
Figure 23-26 (A), (B) Arrangement of bacteriochlorophyll chromophores in the cyclic LH2 array of Rhodopseudomonas acidophila. The B850 subunits are gray while the B800 subunits are black. (C) Fluorescence-excitation spectra. Top trace, for an ensemble of LH2 complexes, other traces, for several individual LH2 complexes at 1.2K. Fine structure is evident for the B800 but not for the B850 chromophores. From van Oijen et al.299 with permission. Figure 23-26 (A), (B) Arrangement of bacteriochlorophyll chromophores in the cyclic LH2 array of Rhodopseudomonas acidophila. The B850 subunits are gray while the B800 subunits are black. (C) Fluorescence-excitation spectra. Top trace, for an ensemble of LH2 complexes, other traces, for several individual LH2 complexes at 1.2K. Fine structure is evident for the B800 but not for the B850 chromophores. From van Oijen et al.299 with permission.
Neunlist, S., Bisseret, P., and Rohmer, M. (1988) The hopanoids of the purple non-sulfur bacteria Rhodopseudomonas palustris and Rhodopseudomonas acidophila and the absolute configuration of bacteriohopanetetrol. Eur. J. Biochem. 171, 245-252. [Pg.635]

Electron and atomic force microscopy has shown that the LH2 complexes from Rhodopseudomonas acidophila, Rhodovulum sulfidophilum, and Rhodobacter sphaeroides are all monomers of the basic a/3-subunits. Crystal structures of the LH2 complexes from Rps. acidophila and Rs. molischianum have also been reported. Each a/3-unit binds 3 bacteriochlorophyll and two carotenoid molecules, although in the crystal structure only one carotenoid electron density was clearly defined. The arrangement of the ajS-subunits is... [Pg.3862]

Prince SM, Howard TD, Myles DA, Wilkinson C, Papiz MZ, Freer AA, Cogdell RJ, Isaacs NW. Detergent structure in crystals of the integral membrane light-harvesting complex LH2 from Rhodopseudomonas acidophila strain 10050. J. Mol. Biol. 2003 326 307-315. [Pg.1000]

K. McLuskey, S.M. Prince, R.J. Cogdell, N.W. Isaacs, The crystallographic structure of the B800-820 Lh3 hght-harvesting complex from the purple bacteria Rhodopseudomonas acidophila Strain 7050. Biochem. 40, 8783-8789 (2001)... [Pg.529]

D. Rutkauskas, R. Novoderezkhin, R.J. Cogdell, R. van Grondelle, Fluorescence spectral fluctuations of single LH2 complexes from Rhodopseudomonas acidophila strain 10050. Biochemistry 43, 4431-4438 (2004)... [Pg.531]

M. Ketelaars, C. Hofmann, J. Kdhler, T.D. Howard, R.J. Cogdell, J. Schmidt, T.J. Aartsma, Spectroscopy on individual light-harvesting 1 complexes of Rhodopseudomonas acidophila. Biophys. J. 83, 1701-1715 (2002)... [Pg.531]

C. Hofmann, T.J. Aartsma, J. Kohler, Energetic disorder and the B850-exciton states of individual light-harvesting 2 complexes from Rhodopseudomonas acidophila. Chem. Phys. Lett. 395, 373-378 (2004a)... [Pg.531]

H.-M. Wu, N.R.S. Reddy, G. J. Small, Direct observation and hole burning of the lowest exciton level (B870) of the LH2 antenna complex of Rhodopseudomonas acidophila (strain 10050). J. Phys. Chem. B 101, 651-656 (1997b)... [Pg.532]

Low-temperature N and CPMAS NMR has been used to analyze BChl-histidine interactions and the electronic structure of histidine residues in the light-harvesting complex II (LH2) of Rhodopseudomonas acidophila. Comparison of the 2D MAS NMR homonuclear ( C- C) dipolar correlation spectrum of [ C(6), N(3)]-histidines in the LH2 complex with model systems in the solid state reveals two different classes of electronic structures from the... [Pg.253]

Color Plate 4. Model for the LH2 nonamer complex from Rhodopseudomonas acidophila. (A) viewed from the periplasmic side of the membrane (B) viewed within the membrane. (Courtesy of Dr. N. W. Issacs and Dr. R. J. Cogdeil). [See Chapter 3, Fig. 6.]... [Pg.790]

Pure Appl Chem69 2163-2168 Schmidt K (1971) Carotenoids of purple nonsulfur bacteria Composition and biosynthesis of the carotenoids of some strains of Rhodopseudomonas acidophila, Rhodospirillum tenue, and Rhodocyclus purpureus. Arch Mikrobiol 77 231-238... [Pg.68]

The Structure and Function of the LH2 Complex from Rhodopseudomonas acidophila Strain 10050, with Special Reference to the Bound Carotenoid... [Pg.71]

In this chapter we shall summarize the structure of the LH2 (B800-850) antenna complex from the purple non-sulfur photosynthetic bacterium Rhodopseudomonas acidophila strain 10050, placing special emphasis on the carotenoids. We will then review what is currently known about the details of the carotenoid s light-harvesting role in this system. [Pg.71]

Fig. 2. The absorption spectrum and CD spectrum of the LH2 complex from Rhodopseudomonas acidophila strain 10050. (a) The abs spectrum of the LH2 complex, (b) A comparison of the abs spectmm (dash line) and the CD spectrum (light line) of the LH2 complex in the visible region of the spectrum, (c) A comparison of the abs spectrum (dash line) and the CD spectrum (light line) of the LH2 complex in the NIR region ofthe spectrum. These data were measured on the BBSRC CD facility at Stirling University, UK with the skilled assistance of Professor Nick Price and Dr Sharon Kelly. Fig. 2. The absorption spectrum and CD spectrum of the LH2 complex from Rhodopseudomonas acidophila strain 10050. (a) The abs spectrum of the LH2 complex, (b) A comparison of the abs spectmm (dash line) and the CD spectrum (light line) of the LH2 complex in the visible region of the spectrum, (c) A comparison of the abs spectrum (dash line) and the CD spectrum (light line) of the LH2 complex in the NIR region ofthe spectrum. These data were measured on the BBSRC CD facility at Stirling University, UK with the skilled assistance of Professor Nick Price and Dr Sharon Kelly.
Fig. 3. A simplified structural representation of the LH2 complex from Rhodopseudomonas acidophila 10050. Top - A view from the periplasmic surface of the membrane. Bottom - A view from within the membrane. The polypeptide chains are shown as ribbons The a-apoproteins are on the inside of the nonameric structure and the apoproteins are on the outside The pigments are depicted with only the photoactive portions of the chromophores shown. This figure was produced using the package MOLSCRlPr (Kraulis, 1991). Fig. 3. A simplified structural representation of the LH2 complex from Rhodopseudomonas acidophila 10050. Top - A view from the periplasmic surface of the membrane. Bottom - A view from within the membrane. The polypeptide chains are shown as ribbons The a-apoproteins are on the inside of the nonameric structure and the apoproteins are on the outside The pigments are depicted with only the photoactive portions of the chromophores shown. This figure was produced using the package MOLSCRlPr (Kraulis, 1991).
Fig. 4. A section of the structure of the LH2 complex from Rhodopseudomonas acidophila strain 10050 only showing the pigment. I n Color Plate 5 the representation is B850 BChi a/s - red, B800 BChl a/s - green, rhodopin glucoside - yellow. This figure was redrawn from McDermott et al. (1995). See also Color Plate 5. Fig. 4. A section of the structure of the LH2 complex from Rhodopseudomonas acidophila strain 10050 only showing the pigment. I n Color Plate 5 the representation is B850 BChi a/s - red, B800 BChl a/s - green, rhodopin glucoside - yellow. This figure was redrawn from McDermott et al. (1995). See also Color Plate 5.
Fig. 5. A schematic representation of the arrangement of the pigments in the LH2 complex from Rhodopseudomonas acidophila strain 10050 within one a/3 apoprotein pair. The rhodopin glucoside molecule can be seen coming into contact with the edge of the B800 BCh a molecule and passing over the face of the a-bound B850 BChl a molecule. Fig. 5. A schematic representation of the arrangement of the pigments in the LH2 complex from Rhodopseudomonas acidophila strain 10050 within one a/3 apoprotein pair. The rhodopin glucoside molecule can be seen coming into contact with the edge of the B800 BCh a molecule and passing over the face of the a-bound B850 BChl a molecule.
Fig. 6. A space filling model of the structure of rhodopin-glucoside in the LH2 complex from Rhodopseudomonas acidophila strain 10050. (Top) A side view (Bottom) A view looking down the long axis of the carotenoid. Fig. 6. A space filling model of the structure of rhodopin-glucoside in the LH2 complex from Rhodopseudomonas acidophila strain 10050. (Top) A side view (Bottom) A view looking down the long axis of the carotenoid.
Angerhofer A, Cogdell RJ and Hipkins MF (1985) A spectral characterisation of the light-harvesting pigment-protein complexes from Rhodopseudomonas acidophila. Biochim Biophys Acta 848 833-841... [Pg.79]

Bissig 1, Brunisholz RA, Cogdell RJ and Zuber H (1988) The complete amino acid sequences of the B800-850 antenna polypeptides from Rhodopseudomonas acidophila strain 7750 Z Naturforsch 43c 77-83... [Pg.79]

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... [Pg.80]

Robert B and Frank HA (198 8) A resonance Raman investigation of the effect of hthium dodecyl sulfate on the B800-850 lightharvesting protein of Rhodopseudomonas acidophila 7750. Biochim Biophys Acta 934 401 05... [Pg.201]

CogdeU RJ, Isaacs NW, Freer AA, Arrelano J, Howard TD, Papiz MZ, Hawthornthwaite-Lawless AM and Prince S (1997) The structure and function of the LH2 (B800-850) complex from the purple photosynthetic bacterium Rhodopseudomonas acidophila strain 10050. Prog Biophys Molec Biol 68 1-27 Connors RE, Burns DS, Farhoosh R and Frank HA (1993) Computational studies of the molecular structure andelectronic spectroscopy of Carotenoids. J Phys Chem 97 9351-9355 De Las Rivas J, Telfer A and Barber J (1993) Two coupled carotene molecules protect P680 from photodamage in isolated Photosystem 11 reaction centres. Biochim Biophys Acta 1142 155-164... [Pg.217]

Krueger BP, Scholes GD, Jimenez R, and Fleming GR (1998) Electronic excitation transfer from carotenoid to bacterio-chlorophyl in the purple bacterium Rhodopseudomonas acidophila. J Phys Chem, 102 2284-2292... [Pg.338]

In Rhodopseudomonas acidophila nine of the 27 BChl a molecules absorb light maximally at 800 nm and are designated B800. The other 18, designated B850, absorb maximally at 860 The B850 BChl a... [Pg.393]

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Rhodopseudomonas acidophila strain

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