GRB14
Adapter protein which modulates coupling of cell surface receptor kinases with specific signaling pathways. Binds to, and suppresses signals from, the activated insulin receptor (INSR). Potent inhibitor of insulin-stimulated MAPK3 phosphorylation. Plays a critical role regulating PDPK1 membrane translocation in response to insulin stimulation and serves as an adapter protein to recruit PDPK1 to activated insulin receptor, thus promoting PKB/AKT1 phosphorylation and transduction of the insulin signal. Belongs to the GRB7/10/14 family. Expressed at high levels in the liver, kidney, pancreas, testis, ovary, heart and skeletal muscle. 2 alternatively spliced human isoforms have been reported. Note: This description may include information from UniProtKB.
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Protein type: Adaptor/scaffold |
Chromosomal Location of Human Ortholog: 2|2 C1.3 |
Cellular Component:
cytoplasm; endosome; Golgi apparatus; intracellular membrane-bounded organelle; membrane; plasma membrane
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Molecular Function:
identical protein binding; phosphoprotein binding; protein binding; protein homodimerization activity; receptor tyrosine kinase binding; SH3/SH2 adaptor activity
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Biological Process:
cellular response to insulin stimulus; insulin receptor signaling pathway; negative regulation of insulin receptor signaling pathway; negative regulation of meiotic cell cycle process involved in oocyte maturation; signal transduction
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Reference #:
Q9JLM9
(UniProtKB)
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Alt. Names/Synonyms: AI505286; Grb14; GRB14 adapter protein; growth factor receptor bound protein 14; Growth factor receptor-bound protein 14; OTTMUSP00000013796; RP23-308K19.2
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Gene Symbols: Grb14
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Molecular weight:
60,573 Da
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Basal Isoelectric point:
8.69
Predict pI for various phosphorylation states
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