Definition: An enzyme that catalyzes the conversion of phosphatidylinositol (PHOSPHATIDYLINOSITOLS) to phosphatidylinositol 4-phosphate, the first committed step in the biosynthesis of phosphatidylinositol 4,5-bisphosphate.
Other names PtdIns 4 Kinase; Phosphatidylinositol 4 Kinase; PI 4 Kinase; Kinase, Phosphoinositide; Kinase, Phosphatidylinositiol; 1 Phosphatidylinositol 4 Kinase; Phosphoinositide Kinase; Phosphatidylinositol Kinase Type II; Phosphatidylinositiol Kinase; PI 4-Kinase; PtdIns 4-Kinase; Phosphatidylinositol 4-Kinase