Phosphatidylinositol 5-phosphate (PI-5-P) is one of the seven phosphoinositides. They regulate a wide range of cellular functions. They localize in the nucleus, Golgi, endoplasmic reticulum, and at the plasma membrane. PI-5-P is an oxidative stress-induced regulator of AKT activation. The phosphorylation of the low abundance phosphoinositide PI-5-P at the...