Molecular mechanism of an oncogenic mutation that alters membrane targeting: Glu17Lys modifies the PIP lipid specificity of the AKT1 PH domain.

Abstract excerpt

The protein kinase AKT1 regulates multiple signaling pathways essential for cell function. Its N-terminal PH domain (AKT1 PH) binds the rare signaling phospholipid phosphatidylinositol 3,4,5-trisphosphate [PI(3,4,5)P(3)], resulting in plasma membrane targeting and phosphoactivation of AKT1 by a membrane-bound kinase. Recently, it was discovered that the Glu17Lys mutation in the AKT1 PH domain is associated with...

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