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Chloroflexus aurantiacus

Synecnocystis Chlorobium tepidum Methylococcus capsulatus Rhodobacter capsulatus Rhosdospirillum rubrum Chloroflexus aurantiacus Fibrobacter succinogenes Thermoanaerobacter tengcongensis... [Pg.122]

Figure 3.4 3-Hydroxypropionate/malyl-CoA cycle, as studied and proposed in Chloroflexus aurantiacus. Figure 3.4 3-Hydroxypropionate/malyl-CoA cycle, as studied and proposed in Chloroflexus aurantiacus.
Agrobacterium tumefaciens Brucella melitensis Burkholderia fungorum (2) Campylobacter jejuni Caulobacter crescentus Chlorobium tepidum Chloroflexus aurantiacus Deinococcus radiodurans Magnetospirillum magnetotacticum (2) Mesorhizobium loti (2) Methanosarcina acetivorans (2)b Methanosarcina mazei (2)b Mycobacterium tuberculosis Myxococcus xanthus Nostoc punctiforme (2)... [Pg.69]

Two distinct cupredoxins labeled auracyanin A and B have been characterized from the gliding thermophilic photosynthetic bacterium Chloroflexus aurantiacus, which is only distantly related to other photosynthetic organisms and appears to have acquired its photosynthetic capabilities by lateral gene transfer. The two forms of auracyanin are distinctly different from each other with respect to their amino acid sequences and the spectroscopic properties of their blue copper sites. In addition, auracyanin B is glycosylated while auracyanin A is not. [Pg.1019]

Rieder, C., Strauss, G., Fuchs, G., Arigoni, D., Bacher, A. and Eisenreich, W. (1998) Biosynthesis of the diterpene verrucosan-2-beta-ol in the phototrophic eubac-terium Chloroflexus aurantiacus a retrobiosynthetic NMR study. /. Biol. Chem., 273, 18099-108. [Pg.298]

In Ch. vinosum and Rhodopseudomonas viridis, Qg is ubiquinone, but is a menaquinone [25,32]. In Chloroflexus aurantiacus, both quinones probably are menaquinones [46,47]. The , 7 of is about 100 mV more negative in these species than it is in species that contain ubiquinone. [Pg.45]

The primary acceptor of the green gliding bacterium Chloroflexus aurantiacus is a menaquinone [41]. It appears that, in spite of its green color brought about by the presence of antenna BChl c pigments, the photosystem of this bacterium is very similar to that of the purple bacteria (Chapter 3). [Pg.110]

Fig. 8. Amino acid sequence of the BChl c-binding (antenna) polypeptide of the chlorosomes from Chloroflexus aurantiacus (A) and the proposed a-helix model of this antenna polypeptide (B) with possible BChl c binding sites (Gin 12,15,22,26,33, Asn 30,41) via the central Mg atom. (C) Chlorosome subunit ( globular subunit ) (light-harvesting BChl c-protein complex of C. aurantiacus) composed of 12 polypeptide chains (a-helices) of the BChl c-binding polypeptide. Pairs of a-helices (dimeric basic units) are tilted to expose the areas for BChl c binding (hatched areas). (D) Chlorosome model (cross-section, C. aurantiacus) containing the chlorosome subunits of the rod-shaped elements in the chlorosome core region (taken from Refs. 69 and 72). Fig. 8. Amino acid sequence of the BChl c-binding (antenna) polypeptide of the chlorosomes from Chloroflexus aurantiacus (A) and the proposed a-helix model of this antenna polypeptide (B) with possible BChl c binding sites (Gin 12,15,22,26,33, Asn 30,41) via the central Mg atom. (C) Chlorosome subunit ( globular subunit ) (light-harvesting BChl c-protein complex of C. aurantiacus) composed of 12 polypeptide chains (a-helices) of the BChl c-binding polypeptide. Pairs of a-helices (dimeric basic units) are tilted to expose the areas for BChl c binding (hatched areas). (D) Chlorosome model (cross-section, C. aurantiacus) containing the chlorosome subunits of the rod-shaped elements in the chlorosome core region (taken from Refs. 69 and 72).
Very recently, Vasmel et al. [64] have performed an exciton analysis of the RC of the filamentous green bacterium Chloroflexus aurantiacus by assuming its structure to be virtually isomorphic to that of the Rps. viridis RC. Since the Chloroflexus RC has 3 BChl and 3 BPh, whereas the Rps. viridis RC has 4 BChl and 2 BPh, Vasmel et al. assume that the only structural difference between the two RCs is that in Chloroflexus the third BPh replaces one of the two accessory BChls found in Rps. viridis. The particular assumption that it is the M-branch accessory BChl that is so replaced leads to a very interesting set of results. Good agreement is found with experimental optical spectra, including, it is claimed, low-temperature absorption, CD, LD and fluorescence (excitation) polarization. Indeed in some ways... [Pg.313]

Fig. 7. Redox-titration ourves of the reaction centers in (A) Rb. sphaeroides, (B) Cf. aurantiacus, (C) Rp. viridis and (D) Chromatium. See text for other details. Figure sources (A) Dutton and Jackson (1972) Thermodynamic and kinetic characterization of electron-transfer components in situ in Rhodopseudomonas spheroides and Rhodospiriiium rubrum. Eur J Biochem. 39 500 (B) Bruce, Fuiler and Biankenship (1982) Primary photochemistry in the facultatively aerobic green photosynthetic bacterium Chloroflexus aurantiacus. Proc Nat Acad, USA. 79 6533 (C) Prince, Leigh and Dutton (1976) Thermodynamic properties ofthe reaction center of Rhodopseudomonas viridis. Biochim Blophys Acta. 440 625 (D) Cusanovich, Bartsch and Kamen (1968) Light-induced electron transport In Chromatium. II. Light-induced absorbance changes in Chromatium chromatophores. Biochim Biophys Acta 153 408. Fig. 7. Redox-titration ourves of the reaction centers in (A) Rb. sphaeroides, (B) Cf. aurantiacus, (C) Rp. viridis and (D) Chromatium. See text for other details. Figure sources (A) Dutton and Jackson (1972) Thermodynamic and kinetic characterization of electron-transfer components in situ in Rhodopseudomonas spheroides and Rhodospiriiium rubrum. Eur J Biochem. 39 500 (B) Bruce, Fuiler and Biankenship (1982) Primary photochemistry in the facultatively aerobic green photosynthetic bacterium Chloroflexus aurantiacus. Proc Nat Acad, USA. 79 6533 (C) Prince, Leigh and Dutton (1976) Thermodynamic properties ofthe reaction center of Rhodopseudomonas viridis. Biochim Blophys Acta. 440 625 (D) Cusanovich, Bartsch and Kamen (1968) Light-induced electron transport In Chromatium. II. Light-induced absorbance changes in Chromatium chromatophores. Biochim Biophys Acta 153 408.
VA Shuvalov, AY Shkuropatov, SM Kulakova, MA Ismailov and VA Shkuropatova (1986) Photoreactions of bacteriopheophytin and bacteriochlorophylls in reaction centers of Rhodopseudomonas sphaeroides and Chloroflexus aurantiacus. Biochim Biophys Acta 849 337-346... [Pg.99]

Fig. 2. Model forthe chlorosome in Chloroflexus aurantiacus. Model adapted from Mimuro, Hirota, Nishimura, Moriyama, Yamazaki, Shimada, and Matsuura (1994) Molecular organization of bacteriochlorophylls in chlorosomes of the green photosynthetic bacteria Chloroflexus aurantiacus Studies of fluorescence depolarization accompanied with the energy transfer process. Photosynthesis Res. 41 190. Fig. 2. Model forthe chlorosome in Chloroflexus aurantiacus. Model adapted from Mimuro, Hirota, Nishimura, Moriyama, Yamazaki, Shimada, and Matsuura (1994) Molecular organization of bacteriochlorophylls in chlorosomes of the green photosynthetic bacteria Chloroflexus aurantiacus Studies of fluorescence depolarization accompanied with the energy transfer process. Photosynthesis Res. 41 190.
Attempts to extract proteins from chlorosomes of Chloroflexus aurantiacus with the chaotropic agent lithium dodecyl sulfate have no apparent effect on the spectral properties of BChl c in situ... [Pg.150]

Fig. 3. Arrangement of bacteriochlorophyll c in the rod elements of chlorosomes of Chloroflexus aurantiacus. (A) Chlorosome-reaction center complex (B) Molecular arrangement of BChl c in the rod elements (C) Molecular structure of BChl c (D) and (E) show two different spatial organizations proposed for self-aggregation of BChl c. (B) from Matsuura, Hirota, Shimada and Mimuro (1993) Spectral forms and orientation of bacteriochlorophylls c and a in chlorosomes of the green photosynthetic bacterium Chloroflexus aurantiacus. Photochem Photobiol 57, 96 figures (D) and (E) from Mimuro, Nozawa, Tamai, Shimada, Yamazaki, Lin, Knox, Wittmershaus, Brune and Blankenship (1989) Excitation energy flow in chiorosome antennas of green photosynthetic bacteria. J Phys Chem. 93 7504. Fig. 3. Arrangement of bacteriochlorophyll c in the rod elements of chlorosomes of Chloroflexus aurantiacus. (A) Chlorosome-reaction center complex (B) Molecular arrangement of BChl c in the rod elements (C) Molecular structure of BChl c (D) and (E) show two different spatial organizations proposed for self-aggregation of BChl c. (B) from Matsuura, Hirota, Shimada and Mimuro (1993) Spectral forms and orientation of bacteriochlorophylls c and a in chlorosomes of the green photosynthetic bacterium Chloroflexus aurantiacus. Photochem Photobiol 57, 96 figures (D) and (E) from Mimuro, Nozawa, Tamai, Shimada, Yamazaki, Lin, Knox, Wittmershaus, Brune and Blankenship (1989) Excitation energy flow in chiorosome antennas of green photosynthetic bacteria. J Phys Chem. 93 7504.
DC Brune, T Nozawa and RE Blankenship (1987) Antenna organization in green photosynthetic bacteria. I. Oligomeric bacteriochlorophyll c as a model for the 740 nm absorbing bacteriochlorophyll c in Chloroflexus aurantiacus chlorosomes. Biochemistry 26 8644-8652... [Pg.157]

RE Blankenship, DC Brune, JM Freeman, GH King JD McManus, T Nozawa and BP Wittmershaus (1988) Energy trapping and electron transfer in Chloroflexus aurantiacus. In JM Olson, JG Omerod, J Amesz, E Stackenbrandt and HG Trper (eds) Green Photosynthetic Bacteria, pp 57-68. Plenum Press... [Pg.157]

H Van Amerongen, B Van Haeringen, M Van Gurp and R Van Grondelle (1991) Polarized fluorescence measurements on ordered photosynthetic antenna complexes chlorosomes of Chloroflexus aurantiacus and B800-850 antenna complexes of Rhodobacter sphaeroides. Biophys J 59 992-1001... [Pg.158]

K Matsuura, M Hirota, K Shimada and M Mimuro (1993) Spectral forms and orientation ofbacteriochlorophylls c and a in chlorosomes of the green photosynthetic bacterium Chloroflexus aurantiacus. Photochem Photobiol 57 92-97... [Pg.158]

Fig. 8. (A) Room-temperature absorption spectra of chemically reduced (solid line) and oxidized (dashed line) reaction centers from Cf. aurantiacus (B) the oxidized-minus-reduced difference spectrum. Figure source Pierson and Thornber(1983) Isolation and spectral characterization of photochemical reaction centers from the thermophilic green bacterium Chloroflexus aurantiacus strain J-10-f1. Proc Nat Acad Sci, USA. 80 81. Fig. 8. (A) Room-temperature absorption spectra of chemically reduced (solid line) and oxidized (dashed line) reaction centers from Cf. aurantiacus (B) the oxidized-minus-reduced difference spectrum. Figure source Pierson and Thornber(1983) Isolation and spectral characterization of photochemical reaction centers from the thermophilic green bacterium Chloroflexus aurantiacus strain J-10-f1. Proc Nat Acad Sci, USA. 80 81.
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Chloroflexus

Photosynthetic bacteria Chloroflexus aurantiacus

Reaction center Chloroflexus aurantiacus

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