The Enzyme Database

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Accepted name: triacylglycerol—sterol O-acyltransferase
Reaction: triacylglycerol + a 3β-hydroxysteroid = diacylglycerol + a 3β-hydroxysteroid ester
Other name(s): triacylglycerol:sterol acyltransferase
Systematic name: triacylglycerol:3β-hydroxysteroid O-acyltransferase
Comments: Tripalmitoylglycerol and, more slowly, other triacylglycerols containing C6 to C22 fatty acids, can act as donors. The best acceptors are 3β-hydroxysteroids with a planar ring system.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 80487-96-3
1.  Zimowski, J. and Wojciechowski, Z.A. Acyl donors for sterol esterification by cell-free preparations from Sinapis alba roots. Phytochemistry 20 (1981) 1799–1803.
[EC created 1984]

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