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2 Shaker Rd Suites
B001/B101
Shirley, MA 01464
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Floor 6, Suite 620
20700 44th Avenue W
Lynnwood, WA 98036
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Fax: +1 (206) 577-4565
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PIK3CA / PI3K Alpha
phosphatidylinositol-4,5-bisphosphate 3-kinase, catalytic subunit alpha
Phosphoinositide-3-kinase (PI3K) that phosphorylates PtdIns (Phosphatidylinositol), PtdIns4P (Phosphatidylinositol 4-phosphate) and PtdIns(4,5)P2 (Phosphatidylinositol 4,5-bisphosphate) to generate phosphatidylinositol 3,4,5-trisphosphate (PIP3). PIP3 plays a key role by recruiting PH domain-containing proteins to the membrane, including AKT1 and PDPK1, activating signaling cascades involved in cell growth, survival, proliferation, motility and morphology. Participates in cellular signaling in response to various growth factors. Involved in the activation of AKT1 upon stimulation by receptor tyrosine kinases ligands such as EGF, insulin, IGF1, VEGFA and PDGF. Involved in signaling via insulin-receptor substrate (IRS) proteins. Essential in endothelial cell migration during vascular development through VEGFA signaling, possibly by regulating RhoA activity. Required for lymphatic vasculature development, possibly by binding to RAS and by activation by EGF and FGF2, but not by PDGF. Regulates invadopodia formation in breast cancer cells through the PDPK1-AKT1 pathway. Participates in cardiomyogenesis in embryonic stem cells through a AKT1 pathway. Participates in vasculogenesis in embryonic stem cells through PDK1 and protein kinase C pathway. Has also serine-protein kinase activity: phosphorylates PIK3R1 (p85alpha regulatory subunit), EIF4EBP1 and HRAS.
| Gene Name: | phosphatidylinositol-4,5-bisphosphate 3-kinase, catalytic subunit alpha |
| Family/Subfamily: | Non-Protein Kinase , not assigned-Non-Protein Kinase |
| Synonyms: | PIK3CA, MCAP, p110-alpha, p110alpha, PI3K, PI3-kinase p110 subunit alpha, PI3-kinase subunit alpha, PI3Kalpha, MCM, MCMTC, PI3K-alpha, PtdIns-3-kinase subunit alpha, CLOVE |
| Target Sequences: | NM_006218 NP_006209.2 P42336 |
Publications (1)
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