text: Besides de novo synthesis, PA can be formed in three ways:
  * By phospholipase D (PLD), via the hydrolysis of the P-O bond of phosphatidylcholine (PC) to produce PA and choline.
  * By the phosphorylation of diacylglycerol (DAG) by DAG kinase (DAGK).
  * By the acylation of lysophosphatidic acid by lysoPA-acyltransferase (LPAAT); this is the most common pathway.
  The glycerol 3-phosphate pathway for de novo synthesis of PA is shown here:
  In addition, PA can be converted into DAG by lipid phosphate phosphohydrolases (LPPs) or into lyso-PA by phospholipase A (PLA).