Quantitative analysis of the proteorhodopsin-mediated sunlight energy that flows through marine ecosystem
| Project/Area Number |
24681003
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥25,350,000 (Direct Cost: ¥19,500,000、Indirect Cost: ¥5,850,000)
Fiscal Year 2014: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2012: ¥14,690,000 (Direct Cost: ¥11,300,000、Indirect Cost: ¥3,390,000)
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| Keywords | ロドプシン / プロテオロドプシン / 物質循環 / 海洋細菌 / 微生物海洋学 / 光エネルギー / 生物海洋 / 微生物ゲノム |
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| Outline of Final Research Achievements |
The aim of this study is to evaluate the proteorhodopsin-mediated sunlight energy flow. In the beginning of the study, proteorhodopsin (PR) was the only type 1 rhodopsin found in marine bacteria. Therefore, the first research plan was designed only for the proteorhodopsin-mediated phototrophy. However, novel type 1 rhodopsins, such as sodium ion pumping rhodopsin (NaR) and chloride ion pumping rhodopsin (ClR), were discovered in marine flavobacteria by the genomic analysis and reported by our group during the research period. This result shows the ways of rhodopsin-mediated light utilization are more diverse than previously thought. In the future, investigating the light use efficiency of each rhodopsin is needed for the evaluation of the rhodopsin-mediated sunlight energy flow.
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Report
(4 results)
Research Products
(30 results)
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[Presentation] 青色光を吸収するプロテオロドプシンの結晶構造解析2014
Author(s)
Toshiaki Hosaka, Susumu Yoshizawa, Tomomi Kimura-Someya, Rojan Shrestha, Muhammad Muddassar, Kam Y. J. Zhang, Masakatsu Hato, Kazuhiro Kogure, Wataru Iwasaki, Mikako Shirouzu, and Shigeyuki Yokoyama
Organizer
第87回日本生化学会大会
Place of Presentation
国立京都国際会館，京都
Year and Date
2014-10-15 – 2014-10-18
Related Report
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