نتایج جستجو برای: fatty acid elongase gene
تعداد نتایج: 1796572 فیلتر نتایج به سال:
One of the major components in high-fat diets (Western diet) is the omega (omega, n)-6 polyunsaturated fatty acid (PUFA) called linoleic acid (LA). Linoleic acid is the precursor for arachidonic acid (AA). These fatty acids are metabolized to an array of eicosanoids and prostaglandins depending upon the enzymes in the pathway. Aberrant expression of the catabolic enzymes such as cyclooxygenases...
Contiguous gene syndromes affecting the mitochondrial oxidative phosphorylation system have been rarely reported. Here, we describe a patient with apparent mitochondrial encephalomyopathy accompanied by several unusual features, including dysmorphism and hepatopathy, caused by a homozygous triple gene deletion on chromosome 5. The deletion encompassed the NDUFAF2, ERCC8 and ELOVL7 genes, encodi...
In plants, very-long-chain fatty acids (VLCFAs; >18 carbon) are precursors of sphingolipids, triacylglycerols, cuticular waxes, and suberin. VLCFAs are synthesized by a multiprotein membrane-bound fatty acid elongation system that catalyzes four successive enzymatic reactions: condensation, reduction, dehydration, and a second reduction. A bioinformatics survey of the Arabidopsis (Arabidopsis t...
The target of the potent antituberculosis drug isoniazid was investigated in Mycobacterium aurum A+, against which isoniazid has an MIC (the minimum concentration required to give growth inhibition) of 0.3 microgram/ml. Mycolic acid biosynthesis, measured by the incorporation of label from [1-14C]acetate into mycolic acids, was inhibited differentially by isoniazid in cell-wall preparations of ...
Polyunsaturated fatty acids (PUFA) have a role in many physiological processes, including energy production, modulation of inflammation, and maintenance of cell membrane integrity. High plasma PUFA concentrations have been shown to have beneficial effects on cardiovascular disease and mortality. To identify genetic contributors of plasma PUFA concentrations, we conducted a genome-wide associati...
Identification of two mammalian reductases involved in the two-carbon fatty acyl elongation cascade.
The de novo synthesis of fatty acids occurs in two distinct cellular compartments. Palmitate (16:0) is synthesized from acetyl-CoA and malonyl-CoA in the cytoplasm by the enzymes acetyl-CoA carboxylase 1 and fatty acid synthase. The synthesis of fatty acids longer than 16 carbons takes place in microsomes and utilizes malonyl-CoA as the carbon source. Each two-carbon addition requires four sequ...
Arrhythmogenic right ventricular dysplasia (ARVD) is an autosomal dominant heart disease. A K64Q mutation was found in ARVD-affected individuals in the HACD1 gene, which encodes an enzyme involved in very long-chain fatty acid (VLCFA) elongation, although any relationship between mutation and pathology remained unclear. Here, we demonstrate that HACD1 (K64Q) exhibits normal enzyme activity, int...
Insects use a spectacular variety of chemical signals to guide their social behaviours. How such chemical diversity arises is a long-standing problem in evolutionary biology. Here we describe the contribution of the fatty acid elongase Bond to both pheromone diversity and male fertility in Drosophila. Genetic manipulation and mass spectrometry analysis reveal that the loss of bond eliminates th...
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