Elucidation of mechanisms of energy dissipation in proteins by time- and space-resolved observation
Project/Area Number |
23350007
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Physical chemistry
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Research Institution | Osaka University |
Principal Investigator |
MIZUTANI Yasuhisa 大阪大学, 理学(系)研究科(研究院), 教授 (60270469)
|
Project Period (FY) |
2011-04-01 – 2014-03-31
|
Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥20,280,000 (Direct Cost: ¥15,600,000、Indirect Cost: ¥4,680,000)
Fiscal Year 2013: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2012: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2011: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
|
Keywords | ラマン分光法 / 生物物理 / 時間分解分光法 / エネルギー移動 / 共鳴ラマン分光法 |
Research Abstract |
Excess energy generated in an active site in proteins transferred to and dissipates in the protein moiety. 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 observed the vibrational energy migration in cytochrome b562 and myoglobin by using anti-Stokes UVRR spectroscopy and elucidated distance dependence of the vibrational energy migration.
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Report
(4 results)
Research Products
(27 results)
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[Presentation] Watching energy flow in hemeproteins2011
Author(s)
Yasuhisa Mizutani
Organizer
Fifteenth International Conference on Time-resolved Vibrational Spectroscopy
Place of Presentation
Centro Stefano Franscini, Monte Verit, Ascona, Switzerland
Year and Date
2011-06-23
Related Report
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