2022 Fiscal Year Final Research Report
Applications of metabolic diversity of basidiomycetes for construction of chemical library of sesquiterpenoids
Project/Area Number |
20H03045
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Review Section |
Basic Section 40020:Wood science-related
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Research Institution | Kyushu University |
Principal Investigator |
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | 担子菌 / セスキテルペン / シトクロムP450 |
Outline of Final Research Achievements |
Gene identification and functional annotation of sesquiterpene synthases (STSs) from the basidiomycetous fungi were performed. Through these investigations, we isolated full-length cDNAs of 46 STSs and revealed the catalytic functions of 30 STSs using recombinant enzymes heterologously expressed in Saccharomyces cerevisiae. Notably, we discovered the unique function of an STS from Pleurotus ostreatus which produced a novel sesquiterpene hydrocarbon that we named pleostene. In addition, we revealed several cytochrome P450 monooxygenases that exhibit catalytic activities against sesquiterpene hydrocarbon produced by STSs. These findings provided potential techniques to synthesize novel sesquiterpene alcohols. It was also suggested that sesquiterpene alcohols produced in this study would have unique bioactivities.
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Free Research Field |
林産学
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Academic Significance and Societal Importance of the Research Achievements |
セスキテルペノイドは生物界で著しい構造多様性を示す天然物群であり、薬理活性を示す化合物も多く知られている。本研究では、担子菌に由来する様々なセスキテルペン合成酵素の機能を決定し、自然界からの獲得が困難なセスキテルペノイドの産生を可能にした。一連の研究においては新規化合物Pleosteneの発掘にも至っており、同化合物を経由して産生される各種天然物の生合成機構解明に大きく貢献する。また、セスキテルペン合成酵素とシトクロムP450を利用することで、多種多様なセスキテルペンアルコールの合成を可能にした。本研究の成果は、新たな生物活性化合物の発掘などを加速する技術基盤として活用されると期待される。
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