In enzymology, a phosphatidylcholine---retinol O-acyltransferase () is an enzyme that catalyzes the chemical reaction phosphatidylcholine + retinol---[cellular-retinol-binding-protein] 2-acylglycerophosphocholine + retinyl-ester---[cellular-retinol-binding-protein] Thus, the two substrates of this enzyme are phosphatidylcholine and [[retinol---[cellular-retinol-binding-protein]]], whereas its two products are 2-acylglycerophosphocholine and [[retinyl-ester---[cellular-retinol-binding-protein]]]. This enzyme belongs to the family of transferases, specifically those acyltransferases transferring groups other than aminoacyl groups. The systematic name of this enzyme class is phosphatidylcholine:retinol---[cellular-retinol-binding-protein] O-acyltransferase. Other names in common use include lecithin---retinol acyltransferase, phosphatidylcholine:retinol-(cellular-retinol-binding-protein), and O-acyltransferase. References EC 2.3.1 Enzymes of unknown structure