In enzymology, a triacylglycerol---sterol O-acyltransferase (EC 2.3.1.77) is an enzyme that catalyzes the chemical reaction Thus, the two substrates of this enzyme are triacylglycerol and 3beta-hydroxysterol, whereas its two products are diacylglycerol and 3beta-hydroxysterol ester.
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 triacylglycerol:3beta-hydroxysterol O-acyltransferase.
This enzyme is also called triacylglycerol:sterol acyltransferase.
This EC 2.3 enzyme-related article is a stub.