The complete amino-acid sequence of the small bacteriochlorophyll-binding polypeptide B800-850β from light-harvesting complex B800-850 of Rhodopseudomonas capsulata

AbstractThe small bacteriochlorophyll-binding polypeptide(β) of the light-harvesting complex B800-850 from the phototrophic bacterium Rhodopseudomonas capsulata was purified from the complex and the membrane, respectively. The complete amino-acid sequence has been determined. The Mr of the polypeptide is 4597. The protein consists of 49 amino acids, 64% of which are hydrophobic. Homology with other bacteriochlorophyll-binding polypeptides is discussed.Bacteriochlorophyll-binding polypeptidePrimary structureRhodopseudomonas capsulataB800-850 antenna pigment comple