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  • Title: Triacylglycerol synthesis in lipid particles from baker's yeast (Saccharomyces cerevisiae).
    Author: Christiansen K.
    Journal: Biochim Biophys Acta; 1978 Jul 25; 530(1):78-90. PubMed ID: 356890.
    Abstract:
    Triacylglycerol synthesis has been studied in a lipid particle preparation of baker's yeast (Saccharomyces cerevisiae), and compared with the synthesis in other subcellular fractions. Fatty acid-CoA ligase (AMP) (EC 6.2.1.3) activity and sn-glycerol 3-phosphate acyltransferase activity (EC 2.3.1.15) were present in all the subcellular fractions tested but the highest specific activities of both enzymes were observed with the lipid particle fraction. The products of the glycerol 3-phosphate acylation indicate that triacyglycerol synthesis proceeds through the phosphatidic acid pathway. However, only a small and nearly constant amount of lysophosphatidic acid was found with the lipid particle fraction while the other subcellular fraction produced lysophosphatidic and phosphatidic acid with a more pronounced precursor/product relationship. Triacylglycerol synthesis from endogenous diacylglycerol present in the lipid particle was also demonstrated.
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