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Background Mortierella alpina is an oleaginous fungus used in the industrial scale production of arachidonic acid (ARA). In order to investigate the metabolic characteristics at a systems level and to explore potential strategies for enhanced lipid production, a genome-scale metabolic model of M. alpina was reconstructed. Results This model included 1106 genes, 1854 reactions and 1732 metabolites...
Malic enzyme (ME) catalyses the oxidative decarboxylation of l-malate to pyruvate and provides NADPH for intracellular metabolism, such as fatty acid synthesis. Here, the mitochondrial ME (mME) gene from Mortierella alpina was homologously over-expressed. Compared with controls, fungal arachidonic acid (ARA; 20:4 n−6) content increased by 60 % without affecting the total fatty acid content. Our results...
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