The multiple function of Grb2 associated binder (Gab) adaptor/scaffolding protein in immune cell signaling

被引:61
作者
Sàrmay, G [1 ]
Angyal, A [1 ]
Kertész, A [1 ]
Maus, M [1 ]
Medgyesi, D [1 ]
机构
[1] Eotvos Lorand Univ, Dept Immunol, H-1117 Budapest, Hungary
关键词
adaptor protein; membrane receptors; signaling; tyrosine phosphorylation;
D O I
10.1016/j.imlet.2005.11.017
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
The Grb2 associated binder (Gab) adaptor/scaffolding protein family comprises conserved proteins: mammalian Gab1, Gab2 and Gab3, Drosophila Dos and Caenorhabditis elegans Soc1. Gab adaptors are involved in multiple signaling pathways mediated by receptor- and nonreceptor protein tyrosine kinases (PTKs), and become phosphorylated upon stimulation by growth factors-, cytokines-, IQ Fc- and antigen receptors. Through its phosphorylated tyrosine containing motifs, proline-rich sequences and pleckstrin homologue (PH) domain Gab adaptors may generate an interacting platform for proteins with SH2 and SH3 domains and may transfer these molecules to the plasma membrane, thereby contributing to their activation. This review will concentrate on the function of mammalian Gab proteins in the signal transduction triggered by immune receptors. (C) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:76 / 82
页数:7
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