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バキュラーATPアゼの共性変調剤
Ying-Chu Chen, Keriann M Backus1, Maria Merkulova2
1Department of Chemical Physiology, The Scripps Research Institute , La Jolla, California 92307, United States.
Journal of the American Chemical Society
|December 25, 2016
まとめ
研究者らは,細胞酸性の重要な調節体である真空のH+ ATPase (V-ATPase) を正確に標的にし,抑制する新しいキナゾリン分子を発見し,疾患研究のための新しいツールを提供しました.
科学分野:
- 生物化学
- 細胞生物学
- 化学生物学
背景:
- 真空のH+ATPase (V-ATPase) は,細胞内コンパートメントの酸性を制御することによって細胞プロセスを調節する.
- 現在のV-ATPase阻害剤は特異性がないか,または明確なメカニズムがないため,研究と治療開発を妨げています.
研究 の 目的:
- V-ATPase阻害のための定義されたメカニズムを持つ新しい小分子を発見する.
- V-ATPaseの生理学的および病理学的役割を調査するための化学探査機を開発する.
主な方法:
- V-ATPASEを標的とした 電気性キナゾリンの発見
- 選択性の評価のために,光画像と化学タンパク質活動に基づくプロファイリングを使用した.
- V-ATPaseサブユニットAのシステイン残留にマッピングされた共性変異部位.
主要な成果:
- 電子性キナゾリンは,溶性触媒V-ATPaseサブユニットを高効能および特異性で共性的に変異させる.
- 変異部位としてサブユニットAの特定のシステイン残留を特定し,潜在的にV-ATPase解離を調節します.
- 3-ブロモピルバートは同じ変異部位を共有し,キナゾリンは細胞内のV-ATPase機能を調節することを実証した.
結論:
- 新型キナゾリンは,V-ATPaseの抑制のための明確に定義されたメカニズムを提供します.
- これらの化合物は高プロテオミク特異性を示し,貴重な化学探査機として機能します.
- この発見は,V-ATPaseの機能とヒトの疾患における治療的可能性の理解を進めている.
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