Functional Ability Elucidation of Auxiliary Light Harvesting Carotenoids Acting in Marine Photosynthesis based on Organic Synthesis
Project/Area Number |
25410183
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Bio-related chemistry
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Research Institution | Osaka City University |
Principal Investigator |
Katsumura Shigeo 大阪市立大学, 大学院理学研究科, 客員教授 (70047364)
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Co-Investigator(Kenkyū-buntansha) |
SAKAGUCHI KAZUHIKO 大阪市立大学, 大学院理学研究科, 准教授 (80264795)
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Co-Investigator(Renkei-kenkyūsha) |
HASHIMOTO HIDEKI 大阪市立大学, 複合先端研究機構, 教授 (50222211)
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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Keywords | 海洋光合成初期過程 / カルボニルカロテノイド / ペリジニン / フコキサンチン / デオキシペリジニン類縁体合成 / 構造的特徴と機能の関係 / 超効率的エネルギー伝達機構解明 / 海洋光合成 / ICT (分子内電荷移動) 準位 / デオキシペリジニン / Pd触媒による3種のカップリング / 立体化学を制御した合成 / 超分子 (PCP) 複合体再構成の試み / 光合成初期過程 / イリデンブテノリド / ICT準位 / 超分子複合体再構成 / 超効率的エネルギー伝達機構 / カロテノイド・ペリジニン / カロテノイド・フコキサンチン / アレン結合 / 3成分連結ワンポットカップリング / アルキニルビニルスズエステル |
Outline of Final Research Achievements |
Peridinin and fucoxanthin are auxiliary light harvesting pigments in the sea. In the super complexes constructed with these carotenoids, chlorophyll and apoprotain, high (>85%) energy transfer efficiencies from them to chlorophyll were reported. Previously, we substantiated the existence of intramolecular charge transfer state (ICT) by ultrafast time resolved spectra measurements (UTRSM) of the synthesized π-conjugation modified analogues. In this project, we have elucidated that ylidenbutenolide of peridinin is essential for ICT generation and allene of fucoxanthin contributes ICT stabilization, by UTRSM of β-caroten ylidenbutenolide derivatives and also C32 fucoxanthin olefin-derivatives. Intending to reconstitute the corresponding super complex, we have synthesized peridinin decarbonyl analogue by the sequential sp and sp2 couplings from E-β-ethynyl-α-stannyl acrylate, obtained by novel anti-selective ethynylstannylation of propiolate. Reconstitution has not been successful yet.
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Report
(4 results)
Research Products
(41 results)
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[Journal Article] Spectroscopic investigation of the carotenoid deoxyperidinin: direct observation of the forbidden S0 → S1 transition2016
Author(s)
Greco, J. A., LaFountain, A. M., Kinashi, N., Shinada, T., Sakaguchi, K., Katsumura, S., S., Magdaong, S., Niedzwiedzki, D.M.R., Birge, R.H., Frank, A.
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Journal Title
The Journal of Physiological Chemistry B
Volume: 120
Issue: 10
Pages: 2731-2734
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Excited state properties of a short π-electron conjugated peridinin analogue2014
Author(s)
Magdaong, N. M.; Niedzwiedzki, D. M.; Greco, J. A.; Liu, H.; Yano, K.; Kajikawa, T.; Sakaguchi, K.; Katsumura, S.; Birge, R. R.; Frank, H. A.
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Journal Title
Chem. Phys. Lett.
Volume: 593
Pages: 132-139
Related Report
Peer Reviewed
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[Journal Article] Excited state properties of a short π-electron conjugated peridinin analogue.2014
Author(s)
Magdaong, N. M.; Niedzwiedzki, D. M.; Greco, J. A.; Liu, H.; Yano, K.; Kajikawa, T.; Sakaguchi, K.; Katsumura, S.; Birge, R. R.; Frank, H. A.
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Journal Title
Chem. Phys. Lett.
Volume: 593
Pages: 132-139
Related Report
Peer Reviewed
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[Presentation] Total Synthesis of Paracentrone2016
Author(s)
Y. Nishioka, Y. Yano, N. Kinashi, N. Oku, Y. Toriyama, S. Katsumura, T. Shinada, K. Sakaguchi
Organizer
The 2016 OCARINA Annual International Meeting
Place of Presentation
Osaka City University, Media Center, Osaka
Year and Date
2016-03-17
Related Report
Int'l Joint Research
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[Presentation] Polyfunctional carotenoid synthesis via one-pot strategy: Toward elucidation of highly efficient energy transfer by marine photosynthetic organisms2015
Author(s)
K. Sakaguchi, T. Kajikawa, S. Hananoki, N. Kinashi, D. Kosumi, H. Hashimoto, H. A. Frank, T. Shinada, S. Katsumura
Organizer
2015 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2015)
Place of Presentation
Hawaii Convention Center, Honolulu, Hawaii, USA
Year and Date
2015-12-15
Related Report
Int'l Joint Research
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[Presentation] Total Synthesis of Paracentrone2015
Author(s)
N. Oku, Y. Nishioka, Y. Yano, N. Kinashi, S. Katsumura, T. Shinada, and K. Sakaguchi
Organizer
The 19th Osaka City University International Workshop on Advanced Molecular Materials Science
Place of Presentation
Osaka City University, Media Center, Osaka
Year and Date
2015-11-12
Related Report
Int'l Joint Research
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