Abstract:
:Acyl-CoA-dependent O-acyltransferases catalyze reactions in which fatty acyl-CoAs are joined to acyl acceptors containing free hydroxyl groups to produce neutral lipids. In this report, we characterize a human multifunctional O-acyltransferase (designated MFAT) that belongs to the acyl-CoA:diacylglycerol acyltransferase 2/acyl-CoA:monoacylglycerol acyltransferase (MGAT) gene family and is highly expressed in the skin. Membranes of insect cells and homogenates of mammalian cells overexpressing MFAT exhibited significantly increased MGAT, acyl-CoA:fatty acyl alcohol acyltransferase (wax synthase), and acyl-CoA:retinol acyltransferase (ARAT) activities, which catalyze the synthesis of diacylglycerols, wax monoesters, and retinyl esters, respectively. Furthermore, when provided with the appropriate substrates, intact mammalian cells overexpressing MFAT accumulated more waxes and retinyl esters than control cells. We conclude that MFAT is a multifunctional acyltransferase that likely plays an important role in lipid metabolism in human skin.
journal_name
J Lipid Resjournal_title
Journal of lipid researchauthors
Yen CL,Brown CH 4th,Monetti M,Farese RV Jrdoi
10.1194/jlr.M500168-JLR200keywords:
subject
Has Abstractpub_date
2005-11-01 00:00:00pages
2388-97issue
11eissn
0022-2275issn
1539-7262pii
M500168-JLR200journal_volume
46pub_type
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journal_title:Journal of lipid research
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journal_title:Journal of lipid research
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journal_title:Journal of lipid research
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