Energy migration within hexameric hemoprotein reconstituted with Zn porphyrinoid molecules

Abstract

Photosensitizers, Zn protoporphyrin IX and Zn chlorin e<inf>6</inf>, are completely inserted into each heme pocket of a hexameric apohemoprotein. The fluorescence quenching efficiencies upon addition of methyl viologen are 2.3 and 2.6 fold-higher than those of the partially photosensitizer-inserted proteins, respectively, indicating that the energy migration occurs within the proteins. This journal is © The Royal Society of Chemistry 2015.