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フレキシジムによるチオペプチドのベンチトップバイオシンセシス
Steven R Fleming1, Tessa E Bartges2, Alexander A Vinogradov3,4
1Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States.
Journal of the American Chemical Society
|January 3, 2019
まとめ
研究者はチオペプチド・スキャフォールドを作成するためのベンチトップ生物合成方法を開発し,複雑な酵素再構成なしで新しいチオペプチド・アナログとピリジン合成の研究を可能にしました.
科学分野:
- 自然製品の生物合成
- 合成生物学
- 薬剤化学
背景:
- ティオペプチドは,広範囲の翻訳後の改変を経て短ペプチドから派生した天然の抗生物質のクラスです.
- ティオペプチド生物合成,特にピリジン合成酵素がマクロサイクルコアを形成する役割を調査することは,マルチ酵素経路を再構成する難しさのために困難です.
- チオペプチド酵素を研究するための既存の方法は,しばしば複雑で資源密集的です.
研究 の 目的:
- チオペプチド基板のためのアクセシブルなベンチトップ生物合成戦略を開発する.
- チオペプチド経路における複数の酵素の復元に伴う課題を克服する.
- 新しいピリジン合成の研究と検証,そして新しいチオペプチド類の生産を可能にする.
主な方法:
- 選択された RiPP (リボソーム合成およびポスト翻訳的に改変されたペプチド) 酵素を細胞フリー発現システムと組み合わせた.
- バイオシンセシスを促進するために,フレキシジームベースのコドン再プログラムを使用した.
- チオペプチド・スキャフォールドの生産と酵素活性検証の簡素化されたシステムを開発した.
主要な成果:
- チオペプチド・スキャフォールドを生産するためのベンチトップ生物合成方法を成功裏に確立しました.
- 新しいチオペプチド類の分析量にアクセスした.
- 経路の再構成なしに新しいピリジン合成の検証のための戦略の有用性を実証した.
結論:
- 開発された細胞無生物合成戦略は,チオペプチド酵素の調査を簡素化します.
- このアプローチは,新しいチオペプチド天然製品とその生物合成機構の発見と特徴づけのための強力なツールを提供します.
- この方法は,酵素の機能,特にピリジン合成の検証を簡素化します.
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