An internal signaling process in response to extracellular signals through which phosphatidylinositols undergo rapid turnover and generate second messengers including diacylglycerol, inositol 1,4,5-trisphosphate, phosphatidylinositol 3,4-bisphosphate (PtdIns 3,4P2) and phosphatidylinositol 3,4,5-trisphosphate.
This is just here as a test because I lose it