Essential roles of Gab1 tyrosine phosphorylation in growth factor-mediated signaling and angiogenesis.

Essential roles of Gab1 tyrosine phosphorylation in growth factor-mediated signaling and angiogenesis.
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DOI:
10.1016/j.ijcard.2014.10.148
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发表时间:
2015-02-15
影响因子:
3.5
通讯作者:
Jin, Zheng Gen
Jin, Zheng Gen
中科院分区:
医学2区
文献类型:
--
作者:
Wang, Weiye;Xu, Suowen;Yin, Meimei;Jin, Zheng Gen

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生长因子及其下游受体酪氨酸激酶(RTK)介导许多控制细胞功能的生物学过程。衔接(对接)蛋白,它完全由介导分子相互作用的结构域和基序组成,将受体激活与下游效应子联系起来。最近的研究表明,Grb 2相关结合物(Gab)家族成员(包括Gab 1、Gab 2和Gab 3),当在酪氨酸残基上磷酸化时,提供多种效应蛋白的结合位点,如含Src同源性-2(SH 2)的蛋白酪氨酸磷酸酶2(SHP 2)和磷脂酰肌醇3-激酶(PI 3 K)调节亚基p85,从而在将RTK介导的信号转导到具有多种生物学功能的通路中发挥重要作用。在这里,我们提供了一个最新的概述的结构域结构和生物学功能的Gab 1,最深入研究的Gab家族蛋白,在生长因子信号传导和生物学功能,特别关注血管生成。
Growth factors and their downstream receptor tyrosine kinases (RTKs) mediate a number of biological processes controlling cell function. Adaptor (docking) proteins, which consist exclusively of domains and motifs that mediate molecular interactions, link receptor activation to downstream effectors. Recent studies have revealed that Grb2-associated-binders (Gab) family members (including Gab1, Gab2, and Gab3), when phosphorylated on tyrosine residues, provide binding sites for multiple effector proteins, such as Src homology-2 (SH2)-containing protein tyrosine phosphatase 2 (SHP2) and phosphatidylinositol 3-kinase (PI3K) regulatory subunit p85, thereby playing important roles in transducing RTKs-mediated signals into pathways with diversified biological functions. Here, we provide an up-to-date overview on the domain structure and biological functions of Gab1, the most intensively studied Gab family protein, in growth factor signaling and biological functions, with a special focus on angiogenesis.
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