協同性による選択性:半合成天然製品との相互作用の好ましい安定化
Madita Wolter1, Pim de Vink1, João Filipe Neves2,3
1Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems, Technische Universiteit Eindhoven, P.O. Box 513, Eindhoven 5600 MB, The Netherlands.
Journal of the American Chemical Society
|June 6, 2020
まとめ
合成タンパク質相互作用 (PPI) 安定剤は十分に研究されていない. この研究では,p65/14-3-3複合体を選択的に安定させ,新しい薬剤発見アプローチを提供する半合成派生剤DP-005を導入しました.
科学分野:
- 生物化学
- 構造生物学
- 薬物の発見
背景:
- 自然化合物はタンパク質相互作用 (PPI) を安定させることができるが,合成安定剤の設計は限られている.
- 14-3-3タンパク質は多くのPPIを調節し,治療的介入の重要な基盤となっています.
- NF-κB転写因子のp65サブユニットは14-3-3によって陰性調節され,細胞増殖制御の標的となる.
研究 の 目的:
- 合成 PPI 安定剤の設計における協力性の利用を調査する.
- 半合成天然産物によるp65/14-3-3複合体の安定化を研究する.
- PPI安定剤の選択性を特徴づけ,測定するための一般化可能な方法を開発する.
主な方法:
- p65/14-3-3複合体の高解像度結晶構造の決定
- 半合成天然製品 (DP-005) の設計と合成
- DP-005の結合性と選択性を評価するための協力性分析
主要な成果:
- p65の14-3-3結合モチーフの2つの高解像度結晶構造が14-3-3との複合体で得られた.
- 半合成派生体DP-005は,p65/14-3-3複合体の特定のポケットに結合し,その安定化につながります.
- 協力性分析により,DP- 005のp65/ 14 - 3 - 3複合体の選択的安定化が,他の疾患に関連する14 - 3 - 3 PPIに比べて確認された.
結論:
- 半合成派生物DP-005は,選択的にp65/14-3-3複合体を安定させる.
- 協力的な結合モデルは,PPI安定剤を特徴づけ,スクリーニングするための多角的な戦略を提供します.
- このアプローチにより,PPIを標的とした合成薬の開発が進められます.
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