View source for Triacylglycerol—sterol O-acyltransferase

{{infobox enzyme
| Name       = triacylglycerol-sterol O-acyltransferase
| EC_number  = 2.3.1.77
| CAS_number = 80487-96-3
| GO_code    = 0047197
| image      =
| width      = 
| caption    =  
}}
In [[enzymology]], a '''triacylglycerol---sterol O-acyltransferase''' ({{EC number|2.3.1.77}}) is an [[enzyme]] that [[catalysis|catalyzes]] the [[chemical reaction]]

:triacylglycerol + a 3beta-hydroxysterol <math>\rightleftharpoons</math> 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 [[transferase]]s, specifically those [[acyltransferase]]s 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==
{{reflist|1}}
* {{cite journal | vauthors = Zimowski J, Wojciechowski ZA | year = 1981 | title = Acyl donors for sterol esterification by cell-free preparations from Sinapis alba roots | journal = [[Phytochemistry (journal)|Phytochemistry]]  | volume = 20 | issue = 8 | pages = 1799&ndash;1803 | doi = 10.1016/0031-9422(81)84007-1 }}

{{Acyltransferases}}
{{Enzymes}}
{{Portal bar|Biology|border=no}}

{{DEFAULTSORT:Triacylglycerol-sterol O-acyltransferase}}
[[Category:EC 2.3.1]]
[[Category:Enzymes of unknown structure]]


{{2.3-enzyme-stub}}