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

J. Friedrich, H. Scheer, B. Zickendraht-Wendelstadt, D. Haarer

Research output: Contribution to journalArticlepeer-review

43 Scopus citations


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.

Original languageEnglish
Pages (from-to)1030-1035
Number of pages6
JournalJournal of the American Chemical Society
Issue number5
StatePublished - Mar 1981
Externally publishedYes


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