The CDP-choline pathway, first identified by Eugene Kennedy in 1956, is the predominant mechanism by which mammalian cells synthesize phosphatidylcholine (PC) for incorporation into membranes or lipid-derived signalling molecules. The CDP-choline pathway represents one half of what is known as the Kennedy pathway. The other half is the CDP-ethanolamine pathway which is responsible for the biosynthesis of the phospholipid product phosphatidylethanolamine (PE). Source: [https://en.wikipedia.org/wiki/CDP-choline_pathway Wikipedia] cf2 DAG = aspartate-alanine-glycine 20503434 PubMed The Kennedy pathway--De novo synthesis of phosphatidylethanolamine and phosphatidylcholine. IUBMB Life 2010 Gibellini F Smith TK phospholipid metabolic pathway PW:0000155 Pathway Ontology CDP-choline pathway of phosphatidylcholine biosynthesis PW:0001336 Pathway Ontology