Assemblies of ionic zinc chlorins assisted by water-soluble polypeptides
Tomohiro Miyatake, Yuki Hasunuma, Yumi Mukai, Hisato Oki, Mikiya Watanabe, Shohei Yamazaki
Bioorganic and Medicinal Chemistry
Artificial chlorophyll–peptide complexes were prepared by mixing ionic chlorophyll derivatives and oligopeptides in aqueous media containing a small amount of organic solvent. The pigment–peptide complexes provided chlorophyll assemblies showing a sharp red-shifted Qy absorption band concomitant with giant circular dichroism signals. The polypeptide-assisted assemblies of chlorophyllous pigments would afford a good model for photosynthetic apparatuses such as pigment–protein complexes of light-harvesting antennas.
Circular dichroism, Medicinal, Biochemistry