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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
Published on: March 20, 2017
排斥性軸索誘導:アベルソンとエナブルドは,回路受容体の下流で対極的な役割を果たします
1Department of Molecular and Cell Biology, University of California, Berkeley 94720, USA.
Cell
|July 13, 2000
まとめ
アベルソン (Abl) ティロシンキナーゼとEnabled (Ena) タンパク質は,ロボ受容体のシグナル伝達に直接影響する. Ablはロボの排斥に敵対し,Enaはそれを促進し,アクソン誘導に影響を与える.
科学分野:
- 神経科学は神経科学である.
- 分子生物学は分子生物学である.
- 発達生物学 発達生物学とは
背景:
- ラウンドアバウト (Robo) 受容体は,反発性軸索誘導に不可欠であり,スリットタンパク質に対する応答を媒介する.
- 撃退を実行するロボの下流信号伝達経路は,大部分が特徴づけられていないままです.
研究 の 目的:
- ロボ信号伝導におけるアベルソン (Abl) ティロシンキナーゼとその基板Enabled (Ena) の役割を調査する.
- AblとEnaがロボット媒介による反発を調節する分子メカニズムを解明する.
主な方法:
- ドロソフィラ菌における遺伝子相互作用の研究.
- タンパク質結合とリン酸化を評価するための生化学的測定法.
- 変異形態を用いたロボット受容体機能の分析.
主要な成果:
- 遺伝的証拠によると,Ablはロボのシグナル伝達に敵対し,Enaは排斥的な出力に不可欠である.
- AblとEnaは,ロボの細胞質領域に直接結合する.
- Ena結合を阻害するRobo変異体は機能の低下を示し,Ablリン酸化部位の変異は過活性なRobo受容体を生成する.
結論:
- AblとEnaは,Roboの信号伝達において,直接的な,対極的な役割を果たし,Roboの下流に作用する.
- これらの発見は,Robo受容体によって媒介される排斥性アクソン誘導のための新しい規制メカニズムを明らかにします.
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