title: Energy migration within hexameric hemoprotein reconstituted with Zn porphyrinoid molecules.
abstract: Photosensitizers, Zn protoporphyrin IX and Zn chlorin e6, 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.
authors.affiliation: Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan. thayashi@chem.eng.osaka-u.ac.jp.
authors.forename: Koji
authors.initials: K
authors.lastname: Oohora
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Mashima
authors.forename: Kei
authors.initials: K
authors.lastname: Ohkubo
authors.forename: Shunichi
authors.initials: S
authors.lastname: Fukuzumi
authors.forename: Takashi
authors.initials: T
authors.lastname: Hayashi
mesh_terms: D002735:Chlorophyllides; D004734:Energy Metabolism; D005453:Fluorescence; D006420:Hemeproteins / Q000737:chemistry / Q000378:metabolism*; D008958:Models, Molecular; D015394:Molecular Structure; D017319:Photosensitizing Agents / Q000737:chemistry / Q000378:metabolism*; D011166:Porphyrins / Q000737:chemistry / Q000378:metabolism*; D011524:Protoporphyrins / Q000737:chemistry / Q000378:metabolism*; D015032:Zinc / Q000737:chemistry / Q000378:metabolism*
chemical_list: D002735:Chlorophyllides; D006420:Hemeproteins; D017319:Photosensitizing Agents; D011166:Porphyrins; D011524:Protoporphyrins; C062985:phytochlorin; C028025:protoporphyrin IX; D015032:Zinc