%0 Journal Article
%T Photoactivation Studies of Zinc Porphyrin-Myoglobin System and Its Application for Light-Chemical Energy Conversion
%A Chin-Hao Chang
%A Yi-Ting Hu
%A Chen-Fu Lo
%A Liyang Luo
%A Hung-Ming Lin
%A Cheng-Hsiang Chang
%A Ching-Yao Lin
%A Eric Wei-Guang Diau
%A Tung-Kung Wu
%J International Journal of Biological Sciences
%D 2011
%I Ivyspring International Publisher
%X An artificial zinc porphyrin-myoglobin-based photo-chemical energy conversion system, consisting of ZnPP-Mb or ZnPE1-Mb as a photosensitizer, NADP+ as an electron acceptor, and triethanolamine as an electron donor, has been constructed to mimic photosystem I. The photoirradiated product is able to reduce a single-electron acceptor protein cytochrome c, but cannot catalyze the two-electron reduction of acetaldehyde by alcohol dehydrogenase, thus demonstrating a single electron transfer mechanism. Furthermore, the artificial system can bifunctionally promote oxidoredox reactions, depending on the presence or absence of a sacrificial electron donor, thus suggesting its potential application in electrochemical regeneration steps involved in chemical transformation and/or energy conversion.
%U http://www.biolsci.org/v07p1203.htm