Source: E. coli. MW :59.1kD. Recombinant Human Sterol O-acyltransferase 2 is produced by our E.coli expression system and the target gene encoding Met1-Glu397 is expressed with a Trx, 6His tag at the N-terminus. ACAT2 is a cytoplasmic enzyme which belongs to the thiolase family. ACAT2 takes part in lipid metabolism, lipoprotein assembly, catalyzing cholesterol esterification in mammalian cells. It is responsible for the synthesis of cholesteryl esters which are part of lipoproteins containing apoB. ACAT2 deficiency contributes to severe mental retardation and hypotonus.