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Very long chain fatty acids (VLCFAs) are essential fatty acids with multiple functions, including ceramide synthesis. Although the components of the VLCFA biosynthetic machinery have been elucidated, how their activity is regulated to meet the cell’s metabolic demand remains unknown. The goal of this study was to identify mechanisms that regulate the rate of VLCFA synthesis, and we discovered that...
Ceramides are bioactive lipids and precursors to sphingolipids. They have been shown to take part in a wide variety of different physiological processes in eukaryotic organisms and are thought to be toxic at high concentrations. Ceramide is synthesized by condensation of the sphingoid base sphinganine and a fatty acyl CoA by ceramide synthases, a family of enzymes that differ in their specificity...
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