2014 Fiscal Year Final Research Report
Molecular basis of uncoupling proteins in thermogenic skunk cabbage
| Project/Area Number |
24657080
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Functional biochemistry
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| Research Institution | Iwate University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 生体エネルギー変換 |
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| Outline of Final Research Achievements |
To clarify the mechanisms of thermoregulation in plants, we performed a comparative analysis of mitochondrial proteins using Blue native PAGE combined with nano LC-MS/MS. Mitochondrial fractions were prepared from thermogenic organs of Symplocarpus renifolius and Arum maculatum, a transiently-thermogenic plant. Our analysis visualized approximately 70 2D gel protein spots regardless of the origin of the mitochondria, and most of these visible spots were subjected to protein identification by mass-spectrometry. Forty-four of these proteins were comparable between the S. renifolius mitochondria and A. maculatum mitochondria in terms of their positions on the gels. Moreover, mitochondria from S. renifolius express higher amounts of uncoupling proteins than those found in Arum maculatum. Our data together with genomic analysis of the protein suggest that expression and functionality of uncoupling proteins are differently regulated in thermogenic plants.
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| Free Research Field |
生物学、生物科学、機能生物科学
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