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Target intelligence / Profile preview
Growth Factor Receptor-Bound Protein 2 (Grb2)
- Target
- Grb2
- Molecular classification
- Adaptor protein, SH2 domain protein, SH3 domain protein
01
Overview
Growth factor receptor-bound protein 2 (GRB2) is an adaptor protein that plays a crucial role in signal transduction. It consists of one SH2 domain and two SH3 domains, enabling it to link activated receptor tyrosine kinases (RTKs) to downstream signaling pathways. GRB2 primarily mediates the activation of Ras by recruiting SOS following growth factor stimulation and is involved in multiple cellular processes, including proliferation, differentiation, survival, and immune function. Altered GRB2 expression or function is implicated in cancer and immunological defects.
- Other names
- Adapter protein GRB2ASHProtein AshSH2/SH3 adapter GRB2
02
Mechanism of action
Inhibition of Grb2 interaction with its binding partners (e.g., SOS, EGFR) to disrupt downstream signaling pathways (e.g., Ras/MAPK).
03
Biological functions
Signal transductionCell proliferationCell differentiationCell survivalImmune responseRegulation of Ras activationAutophagyDNA repairNecroptosis
04
Disease associations
CancerImmunodeficiencySkin fibrosis
05
Safety considerations
Disruption of Grb2 function can lead to developmental defectsInhibition of Grb2 may have broad effects on cell signalingPotential for off-target effects due to SH2/SH3 domain interactions with multiple proteins
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