Evidence for direct methyl transfer in betaine: homocysteine S-methyl-transferase.
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چکیده
منابع مشابه
Sources of Betaine as Methyl Group Donors in Broiler Diets
Betaine is donor of methyl groups and can partially replace methionine in diets for this purpose. The objective of this study was to evaluate three sources of betaine in partial substitution of methionine supplement in broiler diets. The Cobb-500 broiler chickens were allocated in a completely randomized experimental design with 5 treatments and 7 replicates of 49 birds each. The positive contr...
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results no significant difference was found between the groups regarding bmht rs3797546 gene polymorphism. the c allele was not associated with ns-cl/p (or = 1.27, 95% ci = 0.85-2.79, p = 0.690). conclusions our data suggested that bmht rs3797546 gene polymorphism was not associated with risk/ protection for ns-cl/p in a sample of iranian population. larger studies are required to validate our ...
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The ability of human placental glutathione S-transferase (GSHTr) to metabolize methyl parathion (MeP) was examined. MeP was found to be a substrate for both partially purified pre-term and highly purified term placental GSHTr. The characterization of the reaction by high performance liquid chromatography revealed the presence of desmethyl parathion (DesMeP) as the sole metabolite. Term placenta...
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We present evidence for methyl (as methyl or methoxy) transfer from the methyl-accepting chemotaxis proteins H1 and possibly H3 of Bacillus subtilis to the methyl-accepting chemotaxis protein H2. This methyl transfer, which has been observed in vitro (D. J. Goldman and G. W. Ordal, Biochemistry 23:2600-2606, 1984), was strongly stimulated by the chemoattractant aspartate and thus may play an im...
متن کاملThe Metabolic Burden of Methyl Donor Deficiency with Focus on the Betaine Homocysteine Methyltransferase Pathway
Methyl groups are important for numerous cellular functions such as DNA methylation, phosphatidylcholine synthesis, and protein synthesis. The methyl group can directly be delivered by dietary methyl donors, including methionine, folate, betaine, and choline. The liver and the muscles appear to be the major organs for methyl group metabolism. Choline can be synthesized from phosphatidylcholine ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1983
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(17)44037-3