Spatiotemporal mapping of energy dissipation in proteins
| Project/Area Number |
20350007
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | Osaka University |
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Principal Investigator |
MIZUTANI Yasuhisa Osaka University, 大学院・理学研究科, 教授 (60270469)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
Fiscal Year 2010: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2009: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2008: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
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| Keywords | エネルギー移動 / 共鳴ラマン分光法 / 時間分解分光法 / 時間氏分解分光法 |
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| Research Abstract |
Excess energy generated in an active site in proteins transferred to and dissipates in the protein moiety. No direct observation of the energy migration within protein moiety has not been reported because it is difficult to perform the observation. Ultraviolet resonance Raman (UVRR) spectroscopy can selectively monitor Raman bands of aromatic amino acid residues, such as tryptophan, tyrosine and phenylalanine. Anti-Stokes Raman intensity reflects the population in vibrationally excited states. Therefore, anti-Stokes UVRR intensity can be a direct probe of vibrational energy of residues in a protein. In this study, we succeeded in observing the vibrational energy migration in photoexcited heme proteins by using anti-Stokes UVRR spectroscopy
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Report
(4 results)
Research Products
(13 results)
