4.7 Article

Energy migration within hexameric hemoprotein reconstituted with Zn porphyrinoid molecules

Journal

CHEMICAL COMMUNICATIONS
Volume 51, Issue 55, Pages 11138-11140

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc02680f

Keywords

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Funding

  1. Sekisui Chemical Grant Program from Research (Japan)
  2. Asahi Glass Foundation (Japan)
  3. JSPS [25810099, 26104523, 24655051, 22105013, 26620154, 26288037, 15H00873]
  4. MEXT
  5. SICORP (JST)
  6. JSPS Research Fellowship for Young Scientists
  7. Grants-in-Aid for Scientific Research [24655051, 26104523, 26288037, 22105013, 15H00873, 15J00743, 26620154, 15H05804, 25810099] Funding Source: KAKEN

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Photosensitizers, Zn protoporphyrin IX and Zn chlorin e(6), 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.

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