普莱克辛A是一种神经元的语法蛋白受体,控制着轴突指导
M L Winberg1, J N Noordermeer, L Tamagnone
1Howard Hughes Medical Institute, Department of Molecular and Cell Biology, University of California, Berkeley 94720, USA.
Cell
|January 6, 1999
概括
草斑素A作为I类Semaphorins的神经受体,在发育过程中对指导运动和中枢神经系统轴突至关重要.
科学领域:
- 神经科学是一个神经科学.
- 发育生物学 发展生物学
- 分子生物学分子生物学
背景情况:
- 赛马福林是一种大型的蛋白质家族,涉及轴突引导.
- 神经皮林是已知的III类Semaphorins的受体.
- 素是一种蛋白质家族,在免疫系统中具有已知的作用,包括病毒性Semaphorin接收.
研究的目的:
- 在发育中的神经系统中识别和特征DrosophilaPlexins.
- 确定Plexin A作为Semaphorins的神经元受体的作用.
- 研究Plexin A在运动和中枢神经系统 (CNS) 轴突引导中的功能.
主要方法:
- 识别了多索菲拉普莱克辛基因的基因.
- 在发育中的神经系统中分析普雷克辛表达模式.
- 功能性研究,以评估Plexin A在轴突指导中的作用.
主要成果:
- 鉴定出了两个多索菲拉复合素,两者都在发育中的神经系统中表达.
- 普莱克辛A被证实是I类赛马福林 (Sema 1a和Sema 1b) 的神经元受体.
- Plexin A 已被证明可以控制运动和中枢神经系统的轴突引导.
结论:
- 素A是Drosophila神经系统发育中的Semaphorin信号传递的关键媒介.
- plexins可能代表祖先的semaphorins,也可以作为semaphorin结合伙伴.
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