Conversion of Diacylglycerol to Triacylglycerol [DGAT1] 1,2-diacyl-glycerol + acyl-CoA => triacylglycerol + CoASH [DGAT1] EC Number: 2.3.1.20 Pubmed11672446 Reactome Database ID Release 4375900 Reactome, http://www.reactome.org ReactomeREACT_659 Tetrameric diacylglycerol O-acyltransferase 1 (DGAT1) associated with the endoplasmic reticulum membrane catalyzes the reaction of 1,2-diacyl-glycerol and acyl-CoA to form triacylglycerol + CoASH (Cheng et al. 2001).