...
首页> 外文期刊>Trends in Cell Biology >Special Issue: Cell Biology of Cancer Ras moves to stay in place
【24h】

Special Issue: Cell Biology of Cancer Ras moves to stay in place

机译:特刊:癌症Ras的细胞生物学继续发展

获取原文
获取原文并翻译 | 示例
           

摘要

Ras is a major intracellular signaling hub. This elevated position comes at a precarious cost: a single point mutation can cause aberrant signaling. The capacity of Ras for signaling is inextricably linked to its enrichment at the plasma membrane (PM). This PM localization is dynamically maintained by three essential elements: alteration of membrane affinities via lipidation and membrane-interaction motifs; trapping on specific membranes coupled with unidirectional vesicular transport to the PM; and regulation of diffusion via interaction with a solubilization factor. This system constitutes a cycle that primarily corrects for the entropic equilibration of Ras to all membranes that dilutes its signaling capacity. We illuminate how this reaction diffusion system maintains an out-of-equilibrium localization of Ras GTPases and thereby confers signaling functionality to the PM.
机译:Ras是主要的细胞内信号传导枢纽。这种升高的位置需要付出不菲的代价:单点突变会导致异常的信号传导。 Ras的信号传递能力与其在质膜(PM)富集密不可分。 PM的定位由三个基本要素动态维持:通过脂化作用和膜相互作用基序改变膜亲和力;捕获在特定的膜上,并与单向囊泡运输至PM;通过与增溶因子的相互作用来调节扩散。该系统构成了一个循环,该循环主要校正了Ras与所有膜的熵平衡,从而稀释了其信号传递能力。我们阐明了该反应扩散系统如何维持Ras GTPases的非平衡定位,从而将信号功能赋予PM。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号