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  • Title: Species pattern of phosphatidic acid, diacylglycerol, CDP-diacylglycerol and phosphatidylglycerol synthesized de novo in rat liver mitochondria.
    Author: Rüstow B, Schlame M, Rabe H, Reichmann G, Kunze D.
    Journal: Biochim Biophys Acta; 1989 Apr 03; 1002(2):261-3. PubMed ID: 2930773.
    Abstract:
    Rat liver mitochondria were incubated with [3H]glycerol 3-phosphate, ATP, CTP and coenzyme A allowing acylatin of glycerophosphate with endogenous fatty acids and the further conversion of labelled phosphatidic acid (PA) to diacylglycerol (DG), CDP-diacylglycerol (CDP-DG) and phosphatidylglycerol (PG). In these glycerolipids, the distribution of label among the individual molecular species was found to be similar, with 16:0-18:1, 16:0-18:2 and 18:0-18:2/16:0-16:0 being the main species. It was concluded that mitochondrial enzymes involved in the de novo synthesis of these glycerolipids exhibited no acyl selectivity for their substrates. The pattern of molecular species of mitochondrial PA, DG and CDP-DG closely approached that of the same glycerolipids synthesized de novo in isolated rat liver microsomes.
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