Self-Organization of Bacteriochlorophyll a with Photosynthetic Light-Harvesting Polypeptide

Abstract

Molecules of bacteriochlorophyll a(BChl a), as well as its derivatives, formed assemblies with the presence of light-harvesting(LH)polypeptides, isolated from photosynthetic bacteria, or its synthetic model polypeptides. Spectroscopic properties of BChl a derivatives in the complex with LH model polypeptides were analogous to those with LH polypeptides from photosynthetic bacteria. It is interesting to note that the cooperative interactions between LH polypeptide(or its model polypeptides)and BChl a(or its derivatives)can cause complex formation.