Post-Crystal Engineering of Zinc-Substituted Myoglobin to Construct a Long-Lived Photoinduced Charge-Separation System

Post-Crystal Engineering of Zinc-Substituted Myoglobin to Construct a Long-Lived Photoinduced Charge-Separation System

An artificial photoinduced electron‐transfer system has been constructed by accumulating redox cofactors in a myoglobin crystal. The crystal space allowed the construction of a site‐specific dense array, and the different redox cofactors had low reorganization energies, as observed in native photosy...

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Veröffentlicht in:Angewandte Chemie International Edition 2011-05, Vol.50 (21), p.4849-4852
Hauptverfasser: Koshiyama, Tomomi, Shirai, Masanobu, Hikage, Tatsuo, Tabe, Hiroyasu, Tanaka, Koichiro, Kitagawa, Susumu, Ueno, Takafumi
Format: Artikel
Sprache:eng
Schlagworte:
charge separation
electron transfer
hybrid materials
Models, Molecular
myoglobin
Myoglobin - chemistry
Oxidation-Reduction
Photochemistry
Protein Conformation
protein crystals
Protein Engineering
Zinc - chemistry
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Zusammenfassung:An artificial photoinduced electron‐transfer system has been constructed by accumulating redox cofactors in a myoglobin crystal. The crystal space allowed the construction of a site‐specific dense array, and the different redox cofactors had low reorganization energies, as observed in native photosynthesis. A charge‐separated state with a half‐life 2800 times longer than that of one previously reported in organic solution was achieved.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201008004