Triacylglycerol—sterol O-acyltransferase

In enzymology, a triacylglycerol---sterol O-acyltransferase () is an enzyme that catalysis, catalyzes the chemical reaction

:triacylglycerol + a 3beta-hydroxysterol $\rightleftharpoons$ diacylglycerol + a 3beta-hydroxysterol ester

Thus, the two substrate (biochemistry), substrates of this enzyme are triacylglycerol and 3beta-hydroxysterol, whereas its two product (chemistry), 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 List of enzymes, systematic name of this enzyme class is triacylglycerol:3beta-hydroxysterol O-acyltransferase. This enzyme is also called triacylglycerol:sterol acyltransferase.

References

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EC 2.3.1
Enzymes of unknown structure

{{2.3-enzyme-stub