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'Light Harvesting Polypeptide' in keywords
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1988 (1)
1Author    Iwan Bissig, RenéA. Brunisholz, Franz Suter, RichardJ. Cogdell, Herbert ZuberRequires cookie*
 Title    The Complete Amino Acid Sequences of the B 800—850 Antenna Polypeptides from Rhodopseudomonas acidophila strain 7750  
 Abstract    Spectrally pure B 800—850 light harvesting complexes of Rhodopseudomonas acidophila 7750 were prepared by chromatography of LDAO-solubilised photosynthetic membranes on What-mann DE-52 ion exchange resin. Two low molecular mass polypeptides (a, ß) have been isolated by organic solvent extraction of the lyophilised B 800—850 light harvesting complexes. Their primary structures were determined by liquid phase sequencer runs, by the sequence analyses of C-terminal o-iodosobenzoic acid fragments, by hydrazinolysis and by carboxypeptidase degrada-tion. B800—850-a consists of 53 amino acids and is 45.3% and 50.9% homologous to the B 800-850-a antenna polypeptides of Rhodobacter sphaeroides and Rhodobacter capsulatus, respectively. The second very short polypeptide (B800—850-ß, 41 amino acids) is 61.0% and 56.1% homolo-gous to the corresponding polypeptides of Rb. sphaeroides and Rb. capsulatus. The molar ratio of the two polypeptides is about 1:1. Both polypeptides show a hydrophilic N-terminal domain, a very hydrophobic central domain and a short C-terminal domain. In both polypeptides the typical His residues, identified in all antenna polypeptides of purple nonsulphur bacteria as possible bacteriochlorophyll binding sites, were found. 
  Reference    Z. Naturforsch. 43c, 77—83 (1988); received October 21 1987 
  Published    1988 
  Keywords    B800—850 Antenna Complex, Light-Harvesting Polypeptide, Purple Nonsulfur Bacterium, Amino Acid Sequence, Rhodopseudomonas acidophila 
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 TEI-XML for    default:Reihe_C/43/ZNC-1988-43c-0077.pdf 
 Identifier    ZNC-1988-43c-0077 
 Volume    43