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代謝工学によるE. coli菌株における複合ポリケチドのバイオシンセシス
B A Pfeifer1, S J Admiraal, H Gramajo
1Department of Chemical Engineering, Stanford University, Stanford, CA 94305-5025, USA.
Science (New York, N.Y.)
|March 7, 2001
まとめ
科学者たちは,エリスロミシンの中核である6-デオキシエリトロノライドB (6dEB) を生成するために,Escherichia coliを設計した. このエンジニアリングされたバクテリアはプロピオネートを効率的に6dEBに変換し,抗生物質の生産に有望な代替品を提供します.
科学分野:
- 合成生物学 合成生物学とは
- バイオテクノロジー バイオテクノロジー
- 自然製品合成 自然製品合成
背景:
- 抗生物質エリトロマイシンのコアである6-デオキシエリトロノライドB (6dEB) は,サッカロポリスポラエリトレイアによって合成された複雑なポリケチドです.
- 複合ポリケチドの生産は,生産する生物,主にアクチノミセツを遺伝子操作する難題によって制限されています.
研究 の 目的:
- 6dEB.の生産のために異質なホストを設計する.
- 自然にポリケチドを生成する微生物の遺伝子操作の限界を克服するために.
主な方法:
- エシェリキア・コライの誘導体の遺伝子工学.
- エンジニアリングされたE. coliをバイオシンセシスの細胞触媒として利用する.
主要な成果:
- エンジニアリングされたEscherichia coliは,外部プロピオネートを6dEBに成功裏に変換しました.
- エンジニアリングされたE. coli触媒の特異的生産性は,高度に最適化されたS. erythraea.の工業株と比較できます.
結論:
- エシェリキア・コライは,6dEB.のような複雑なポリケチドを生成するための生存可能な宿主として設計することができます.
- このアプローチは,価値ある天然製品の生物合成のための強力な代替案を提供し,現地生産者の制限を回避します.
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