正方形に機能するエリトロミシンアナログの前駆体による生物合成:リボソームマクロリド結合ポケットの選択性
Colin J B Harvey1, Joseph D Puglisi, Vijay S Pande
1Department of Chemistry, Stanford University, Stanford, California 94305, USA.
Journal of the American Chemical Society
|June 30, 2012
まとめ
研究者らは,アルキニルとアルケニルで置換された新しいマクロリドを発見し,その抗菌作用はエリトロマイシンAに匹敵する. 彼らはまた,15-プロパルギルエリトロミシンAを開発し,化学的改変能力が強化された新しい抗生物質を開発しました.
科学分野:
- 薬用化学 薬用化学について
- 微生物学 微生物学とは
- 合成生物学 合成生物学とは
背景:
- エリトロマイシンAなどのマクロリド抗生物質は,細菌感染症の治療に不可欠です.
- 抗生物質耐性との闘いには,改良された特性を持つ新しい同類剤の開発が不可欠である.
研究 の 目的:
- 強力な抗菌作用を持つ新しいマクロリド類同類物を特定する.
- 先駆体改変の構造-活性関係を探求する.
- 化学的機能が強化された新しいエリトロマイシンA誘導体を開発する.
主な方法:
- 先駆体誘導生物合成のための化学遺伝的戦略を活用した.
- 6-デオキシエリトロミシンDの類似物をスクリーニングするためのコロニーバイオアッセイが使用されました.
- 新型アルキニル,アルケニル,プロパルギル置換マクロリドを合成し,特徴づけました.
主要な成果:
- アルキニルとアルケニルで置換されたマクロリドの新種を特定し,エリトロミシンAに匹敵する活性を持つ.
- 抗生物質の活性が前駆体サイズと不飽和性に大きく依存することを発見した.
- オートゴーナル機能群を持つ強力な抗生物質である15-プロパルギルエリトロミシンAを成功裏に合成しました.
結論:
- 先駆体改変は,新しいマクロリド抗生物質を生成するための実行可能な戦略です.
- 15-プロパルギルエリトロミシンAは,さらなる開発と化学改変のための有望な新しい抗生物質の支架を表しています.
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