The BChlc/e-binding polypeptides from chlorosomes of green photosynthetic bacteria

AbstractA 6.3 kDa polypeptide has been isolated from chlorosomes of the green photosynthetic bacterium Pelodictyon luteolum, and its complete amino acid sequence has been determined. It exhibits an overall homology of 30% to the Bchlc-binding protein of Chloroflexus aurantiacus. Preliminary results from the N-terminal sequence analyses of the analogous polypeptides isolated from Chlorobium limicola, Prosthecochloris aestuarii and chlorobium phaeovibrioides revealed a highly conserved sequence. This protein is suggested to be the Bchlc/e-binding polypeptide in the family of the Chlorobiaceae