酵素による還元性脱ヒロゲネーションは,海洋細菌のピロールの生物合成を制御する
Abrahim El Gamal1, Vinayak Agarwal1, Imran Rahman1
1Center for Oceans and Human Health, Scripps Institution of Oceanography, Scripps Institution of Oceanography, University of California, San Diego , San Diego, California 92093, United States.
Journal of the American Chemical Society
|September 28, 2016
まとめ
研究者達は新しい酵素 Bmp8 を発見し ブロミン原子を取り除きました このデブロミナーゼは天然産物経路で初めて発見され,汚染物質の生物修復の可能性を示しています.
科学分野:
- 生物化学
- 環境科学
- 海洋生物学
背景:
- 脱ハロゲン化酵素は,持久性有機汚染物質の生物修復に不可欠です.
- 海洋環境はポリハロゲン化天然製品を産生しますが,二次代謝経路からの脱ハロゲン化酵素は難解です.
研究 の 目的:
- 自然産物の生合成に関与する新しい脱ハロゲン化酵素を特定し,特徴づけること.
- 新たに発見された海洋細菌の酵素の仕組みを 調べるためでした
主な方法:
- 海洋バクテリアの産物であるペンタブロムプセウディリンの 生体合成を研究した.
- 生物化学的および遺伝的アプローチを使用してデブロミナーゼBmp8を特徴づけました.
- Bmp8が使ったリドックスチオールメカニズムを解明した.
主要な成果:
- ペンタブロムセウジリン生物合成の最後のステップを触媒するデブロミナーゼとしてBmp8を特定した.
- Bmp8は2,3,4,5-テトラブロモピロールからブロミン原子を取り除くためにリドックスチオールメカニズムを使用します.
- これは天然製品の生合成経路から初めて報告された脱ハロゲン化酵素です.
結論:
- Bmp8は新種の脱ハロゲン化酵素である.
- この発見は,ハロゲン化天然製品の生物合成に関する洞察を提供します.
- この酵素は将来の生物修復の応用の可能性を持っています.
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