CNKは,RAFに結合する多領域タンパク質で,RASのシグナル伝達に必要なタンパク質です
M Therrien1, A M Wong, G M Rubin
1Howard Hughes Medical Institute and Department of Molecular and Cell Biology, University of California, Berkeley 94720-3200, USA.
Cell
|November 14, 1998
まとめ
ksrのコネクタ強化剤 (CNK) は,RAS/MAPK経路で機能する新しいタンパク質です. CNKはRAFと相互作用し,その機能と局所を調節し,信号伝送に影響を与えます.
科学分野:
- 分子生物学は分子生物学である.
- 細胞シグナリング
- 遺伝学 遺伝学とは
背景:
- ras (KSR) のキナーゼ抑制剤は,RAS/MAPKのカスケード信号伝送に不可欠である.
- RAS/MAPK経路は,増殖と分化を含む基本的な細胞プロセスを調節する.
研究 の 目的:
- RAS/MAPK経路に関与する新しい遺伝子を特定する.
- 新しく特定された遺伝子,ksrのコネクタ強化器 (CNK) の機能とメカニズムを解明する.
主な方法:
- 遺伝子スクリーンは,改変因子の変異を特定する.
- タンパク質相互作用に関する研究.
- サブセルロースの局所分析.
主要な成果:
- 新種の遺伝子,ksrのコネクタ強化剤 (CNK) が特定されました.
- CNKは,RAFのRAS経路において,RAFの上流または並行して機能する.
- CNKタンパク質は,タンパク質とタンパク質の相互作用領域を有し,チロシンリン酸化され,RAFと相互作用し,細胞と細胞の接触領域に局所する.
結論:
- CNKは,RASに依存した信号伝達経路の新しい構成要素です.
- CNKは,RAFの機能および/またはRASの活性化時の局所化を調節する.
- CNKは,シグナル伝達分子をまとめて,骨組みタンパク質として機能します.
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