GAB2 antibody Usage And Synthesis

Source

Rabbit

Reactivity

Human;Mouse;Rat

Background

GRB2-associated-binding protein 2 belongs to the Grb-associated binder family of signaling scaffolds, which are characterized by a highly conserved N-terminal PH domain for membrane recruitment, multiple proline-rich motifs for the recruitment of SH3 domain-containing proteins, such as GRB2, and multiple tyrosine residues capable of associating with SH2 domain-containing proteins, such as p85-PI3K, CrkL, and SHP-2, in a phosphorylation-dependent manner. Research studies have shown that Gab2 is a widely expressed protein that participates in orchestrating signals downstream of many transmembrane receptors for growth factors and cytokines. Indeed, Gab2 was initially identified as a tyrosine-phosphorylated protein associated with SHP-2 and the p85 subunit of PI3K in response to engagement of the IL-3 and M-CSF receptors. Subsequent studies also identified Gab2 as a participant in signaling cascades triggered by the T cell antigen receptor. It is now well established that Gab2 is a critical component of signaling cascades triggered by numerous oncogenic tyrosine kinases. In the context of human disease, Gab2 is overexpressed in breast cancer and ovarian cancer, which facilitates tumor cell proliferation and survival.

References

[1] Liu, Y. and Rohrschneider, L.R. (2002) FEBS Lett 515, 1-7.
[2] Gu, H. et al. (1998) Mol Cell 2, 729-40.
[3] Carlberg, K. and Rohrschneider, L.R. (1997) J Biol Chem 272, 15943-50.
[4] Gu, H. et al. (1997) J Biol Chem 272, 16421-30.
[5] Nishida, K. et al. (1999) Blood 93, 1809-16.
[6] Yamasaki, S. et al. (2001) J Biol Chem 276, 45175-83.
[7] Dunn, G.P. et al. (2014) Proc Natl Acad Sci USA 111, 1102-7.
[8] Bocanegra, M. et al. (2010) Oncogene 29, 774-9.

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