has output phosphatidylinositol phosphatidylinositol biosynthetic process Phosphatidylinositol (PI) is synthesized when phosphatidic acid (PA) and cytidine triphosphate (CTP) are converted into cytidine diphosphate-diacylglycerol (CDP-DAG) followed by conversion into PI and cytidine monophosphate (CMP) (Stuhne-Sekalec et al 1986, Lykidis et al. 1997). PtdIns biosynthesis PtdIns biosynthetic process The chemical reactions and pathways resulting in the formation of phosphatidylinositol, any glycophospholipid in which the sn-glycerol 3-phosphate residue is esterified to the 1-hydroxyl group of 1D-myo-inositol. http://purl.obolibrary.org/obo/HINO_0013926 phosphatidylinositol anabolism phosphatidylinositol biosynthesis phosphatidylinositol formation phosphatidylinositol synthesis phosphoinositide biosynthesis phosphoinositide biosynthetic process glycerophospholipid biosynthetic process phosphatidylinositol metabolic process