ID 2.3.1.77 DE triacylglycerol--sterol O-acyltransferase. CA a 3beta-hydroxysteroid + a triacylglycerol = a 3beta-hydroxysteroid ester CA + a diacylglycerol. CC -!- Tripalmitoylglycerol can act as donor, and, more slowly, other CC triacylglycerols containing C6 to C22 fatty acids. CC -!- The best acceptors are 3beta-hydroxysteroids with a planar ring CC system. //