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首页> 外文期刊>Cellular Signalling >The molecular functions of Shp2 in the Ras/Mitogen-activated protein kinase (ERK1/2) pathway
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The molecular functions of Shp2 in the Ras/Mitogen-activated protein kinase (ERK1/2) pathway

机译:Shp2在Ras /促分裂原活化蛋白激酶(ERK1 / 2)途径中的分子功能

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摘要

Shp2 is a ubiquitous tyrosine phosphatase containing Src Homology 2 domains which plays major biological functions in response to various growth factors, hormones or cytokines. This is essentially due to its particularity of promoting the activation of the Ras/Mitogen-activated protein kinase pathway. Recent progresses have been made in the understanding of the molecular mechanisms involved in this regulation. We review here, and discuss the physiological relevance, of the following molecular functions of Shp2 that have been proposed to couple the phosphatase to Ras activation: promoter of Grb2/Sos recruitment through direct binding to Grb2, binding partner and regulator of SHPS-I, negative regulator of Sprouty, negative regulator of RasGAP recruitment, and activator of Src through dephosphorylation of Src-regulatory proteins. (C) 2007 Elsevier Inc. All rights reserved.
机译:Shp2是一种​​普遍存在的酪氨酸磷酸酶,含有Src Homology 2结构域,对各种生长因子,激素或细胞因子具有重要的生物学功能。这主要是由于其促进Ras /丝裂原活化的蛋白激酶途径活化的特殊性。在理解该调控涉及的分子机制方面已取得了最新进展。我们在这里进行了综述,并讨论了已提出的将磷酸酶偶联至Ras活化的Shp2的以下分子功能的生理相关性:通过直接结合到Grb2的Grb2 / Sos募集启动子,SHPS-1的结合伴侣和调节剂, Sprouty的负调控因子,RasGAP募集的负调控因子,以及通过Src调控蛋白的去磷酸化来激活Src。 (C)2007 Elsevier Inc.保留所有权利。

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