FUNCTION: Acts as a lipid transfer protein. Preferentially captures and shuttles two lipid second messengers, i.e., phosphatidylinositol 4,5- bisphosphate and phosphatidylinositol 3,4,5-trisphosphate and increases their levels in the plasma membrane. Additionally, may also function as a lipid-presen...
FUNCTION: Acts as a lipid transfer protein. Preferentially captures and shuttles two lipid second messengers, i.e., phosphatidylinositol 4,5- bisphosphate and phosphatidylinositol 3,4,5-trisphosphate and increases their levels in the plasma membrane. Additionally, may also function as a lipid-presenting protein to enhance the activity of the PI3K-AKT and MEK-ERK pathways. May act as a regulator of tumorigenesis through its activation of phospholipid signaling. {ECO:0000250|UniProtKB:Q3TBL6}.
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GO - Biological processes (BP):
inositol lipid-mediated signaling [GO:0048017]; phospholipid metabolic process [GO:0006644]; phospholipid transport [GO:0015914]; positive regulation of ERK1 and ERK2 cascade [GO:0070374]; positive regulation of phosphatidylinositol 3-kinase activity [GO:0043552]; positive regulation of protein kina...
inositol lipid-mediated signaling [GO:0048017]; phospholipid metabolic process [GO:0006644]; phospholipid transport [GO:0015914]; positive regulation of ERK1 and ERK2 cascade [GO:0070374]; positive regulation of phosphatidylinositol 3-kinase activity [GO:0043552]; positive regulation of protein kinase B signaling [GO:0051897]; regulation of apoptotic process [GO:0042981]; regulation of lipid metabolic process [GO:0019216]
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GO - Molecular function (MF):
phosphatidylinositol binding [GO:0035091]; phosphatidylinositol transfer activity [GO:0008526]...
phosphatidylinositol binding [GO:0035091]; phosphatidylinositol transfer activity [GO:0008526]
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GO - Cellular component (CC):
cytoplasm [GO:0005737]; cytosol [GO:0005829]; nucleoplasm [GO:0005654]; plasma membrane [GO:0005886]...
cytoplasm [GO:0005737]; cytosol [GO:0005829]; nucleoplasm [GO:0005654]; plasma membrane [GO:0005886]
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