Covalent 14-3-3 リクルートによる標的型タンパク質局所化
Qian Shao1,2, Tuong Nghi Duong1,2, Inji Park1,2
1Departments of Chemistry and Molecular and Cell Biology, University of California, Berkeley, Berkeley, California 94720, United States.
Journal of the American Chemical Society
|August 28, 2024
まとめ
研究者は14-3-3分子接着剤として作用する新しい共性結合体EN171を開発しました. これは,YAPやTAZのような転写因子との14-3-3σ相互作用を強化し,標的型タンパク質の結合を可能にします.
科学分野:
- 生物化学
- 分子生物学
- 薬物の発見
背景:
- 14-3-3タンパク質は様々なリン酸化基質と結合し,細胞の信号伝達を調節する.
- 転写因子との14-3-3の相互作用を強化することは,治療的に困難です.
- 14-3-3σ (SFN) は,その基板結合インターフェースの近くに反応性システイン (C38) を有する.
研究 の 目的:
- 転写因子との相互作用を強化する分子接着剤を特定する.
- 薬効性 (ERα) と不治性 (YAP,TAZ) の両方をターゲットにする.
- 核ネオ基板を隔離する 協和集客を調査する
主な方法:
- 14-3-3σに対する合成システイン反応性共性リガンドライブラリのスクリーニング.
- ERα,YAP,TAZ結合に対する効果を評価するために,ヒット化合物 (EN171) を利用する.
- 核ネオ基板封じ込めのためのヘテロバイ機能分子でEN171をテストする.
主要な成果:
- 14-3-3σ C38とC96を標的にする共性リガンドであるEN171を特定した.
- EN171は,ERα,YAP,TAZとの14 - 3 - 3σ相互作用を強化し,それらの転写活性を低下させた.
- 細胞溶液にBRD4とBLC6を隔離するリクルート剤としてEN171の有用性を実証した.
結論:
- EN171は,転写因子に挑戦するための新しい共性14-3-3分子接着剤です.
- 交配性14-3-3接着剤は,ヘテロバイ機能分子に設計することができます.
- 細胞溶液への核タンパク質の標的化された結合は,治療用途で達成可能である.
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