High-Resolution Optical Studies on C-Phycocyanin via Photochemical Hole Burning

Friedrich, J.; Scheer, Hugo; Zickendraht-Wendelstadt, Barbara und Haarer, D. (1981): High-Resolution Optical Studies on C-Phycocyanin via Photochemical Hole Burning. In: Journal of the American Chemical Society, Bd. 103: S. 1030-1035

Abstract

We have shown that both the native C-phycocyanin and its corresponding free biline chromophore undergo reversible, low-temperature photochemistry. We attribute this photochemistry to reversible proton-transfer processes and utilize the observed photoreaction for photochemical hole burning (PHB). Using narrow-band PHB experiments, we have been able to perform high-resolution optical studies and show that the protein-chromophore assembly forms a very rigid structure. The results lead to the conclusion that the light-induced proton transfer occurs most probably in the triplet state.

• Dokumententyp: Zeitschriftenartikel
• Keywords: C-Phycocyanin; Photochemistry
• Fakultät: Biologie
• Themengebiete: 500 Naturwissenschaften und Mathematik > 570 Biowissenschaften; Biologie