Analysis of the role of electrostatic interactions between cytoplasmic domains of sarcoplasmic reticulum calcium pump
| Project/Area Number |
21570127
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Functional biochemistry
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| Research Institution | Asahikawa Medical College |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 生体エネルギー転換 / カルシウムポンプ / 筋小胞体 / 静電的相互作用 / イオン輸送 / 酵素反応速度論 / 部位特異的変異 / Ptype ATPase / 機能構造連関 |
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| Research Abstract |
I explored the roles of electrostatic interactions in the movement of cytoplasmic domain of sarcoplasmic reticulum calcium pump by using a kinetic analysis of site-directed mutants. In this study, I found a linear relationship between logarithm of rate constant and square of the activity coefficient. This plot revealed that electrostatic interactions between domains act like a guide line of domain motion. This plot would provide a useful tool for quantification of electrostatic effects in the enzyme reactions.
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Report
(4 results)
Research Products
(25 results)
