نتایج جستجو برای: methylene tetrahydrofolate dehydrogenase mthfd1
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BACKGROUND AND AIMS The methylene-tetrahydrofolate dehydrogenase (NADP+ dependent) 1-like (MTHFD1L) gene is involved in mitochondrial tetrahydrofolate metabolism. Polymorphisms in MTHFD1L, including rs6922269, have been implicated in risk for coronary artery disease (CAD). We investigated the association between rs6922269 and known metabolic risk factors and survival in two independent cohorts ...
The liver cytosolic enzyme, 10-formyltetrahydrofolate dehydrogenase (FDH) (EC 1.5.1.6) catalyzes two reactions: the NADP+-dependent oxidation of 10-formyltetrahydrofolate to tetrahydrofolate and CO2 and the NADP+-independent hydrolysis of 10-formyltetrahydrofolate to tetrahydrofolate and formate. The COOH-terminal domain of the enzyme (residues 420-902) is about 48% identical to a family of NAD...
The acetyl-CoA "Wood-Ljungdahl" pathway couples the folate-mediated one-carbon (C1) metabolism to either CO2 reduction or acetate oxidation via acetyl-CoA. This pathway is distributed in diverse anaerobes and is used for both energy conservation and assimilation of C1 compounds. Genome annotations for all sequenced strains of Dehalococcoides mccartyi, an important bacterium involved in the bior...
Methionine synthesis from homocysteine was measured in intact human fibroblasts and lymphoblasts using a [14C]formate label. Seven fibroblast lines and two lymphoblast lines derived from patients with 5,10-methylene tetrahydrofolate reductase deficiency had rates of methionine synthesis that were from 4 to 43% of normal. When the patients were divided by clinical status into mildly (two patient...
Here we describe a new approach for the generation of heme-peroxo-Cu compounds, using a "naked" complex synthon, [(F8)Fe(III)-(O2(2-))-Cu(II)(MeTHF)3](+) (MeTHF = 2-methyltetrahydrofuran; F8 = tetrakis(2,6-difluorophenyl)porphyrinate). Addition of varying ligands (L) for Cu allows the generation and spectroscopic characterization of a family of high- and low-spin Fe(III)-(O2(2-))-Cu(II)(L) comp...
In 1928 Miiller (1) reported the presence of a new enzyme, a glucose oxidase, in press-juice of Aspergillus niger. He subsequently suggested that it might be a dehydrogenase (2) ; he later showed that it catalyzed the oxidation of glucose to gluconic acid (3). Harrison in 1931 obtained glucose dehydrogenase from acetone-dried mammalian liver by saturating a water extract with ammonium sulfate (...
5,6,7,8-Tetrahydro-N5,N10-carbonylfolic acid (LY354899) has been demonstrated to inhibit the dehydrogenase activity of C1-tetrahydrofolate synthase. This compound was only moderately antiproliferative toward CCRF-CEM lymphocytic leukemia cells in culture, but induced apoptosis after long incubation times. Slightly greater potency was observed in CEM cells adapted to grow in low folate media. Ce...
Recent reports linking Down syndrome (DS) to maternal polymorphism at the methylenetetrahydrofolate dehydrogenase (MTHFD) locus have generated a great interest among investigators in the field. In the current study, we examine one genetic polymorphism involved in homocysteine/folate pathway as a risk factor for DS in a Romanian urban-area women cohort. Our results show that the frequencies of M...
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