Piezoelectric effect in proteins: a novel mechanism of allostery
Project/Area Number |
16K14715
|
Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
Allocation Type | Multi-year Fund |
Research Field |
Biophysics
|
Research Institution | Waseda University |
Principal Investigator |
|
Research Collaborator |
Sato Takato
Ohnuki Jun
|
Project Period (FY) |
2016-04-01 – 2019-03-31
|
Project Status |
Completed (Fiscal Year 2018)
|
Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
|
Keywords | アロステリー / 分子機械 / 圧電応答 / 誘電応答 / アロステリック機構 / タンパク質 / 圧電効果 |
Outline of Final Research Achievements |
The vital activities of living organisms are ultimately based on the functions of protein molecules and the highly-organized intermolecular interaction network among the proteins and other biomolecules. The motility, for example, is based on the association and dissociation dynamics of actin and myosin molecules that is regulated by ATP (energy-supplying biomolecule). In this study, by using high-performance computers, we elucidated the input-output characteristics (particularly piezoelectric and dielectric responses) of the molecular device of protein to advance the physical understanding of how a single protein molecule works and how the intermolecular interactions are regulated.
|
Academic Significance and Societal Importance of the Research Achievements |
もしミオシンの正常に機能しなくなったり、あるいはATPによるミオシンとアクチンの結合と解離の制御がうまくいかなくなることあれば、私たちの運動機能(たとえば心臓の収縮弛緩運動)は大きなダメージを受ける。タンパク質1分子がどのように機能するか、分子間相互作用がどのように制御されるかの物理基盤が明らかになればタンパク質分子物性の基礎科学として学術的意義が大きいのみならず、それらが正常に機能しなくなったときの根本的な原因究明(原因療法)につながる可能性がある。
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Report
(4 results)
Research Products
(29 results)
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[Book] 分子マシンの科学2017
Author(s)
日本化学会編
Total Pages
200
Publisher
化学同人
ISBN
9784759813869
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