The Oxidative Decomposition of l-Methionine Sulphoxide and l-methionine Sulphone by Electorolysis
نویسندگان
چکیده
منابع مشابه
The enzymatic decomposition of S-adenosyl-L-methionine.
The role of S-adenosyl-n-methionine as a methyl donor has been investigated in mammalian systems (1) and in microbial metabolism (2-4). In addition, the compound is involved in the formation of spermidine from putrescine (5). Information concerning the stability of S-adenosylmethionine in various enzymatic systems is a necessary prerequisite for studies concerning its role in group transfer. In...
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Tumor accumulation of S-adenosyl-L-[methyl-11C]methionine ([11C]SAM) was investigated in mice bearing mammary carcinoma (FM3A) and in rats bearing ascitic hepatoma (AH109A). After injection of [11C]SAM the blood clearance of 11C radioactivity was rapid. The 11C level was relatively high in both tumors. The uptake ratios of tumor to organ increased with time in several organs, especially in brai...
متن کاملEffect of dietary changes on intestinal absorption of L-methionine and L-methionyl-L-methionine in the rat.
I . The absorption rates of L-methionine and L-methionyl-L-methionine (dimethionine) from the upper jejunum and lower ileum of the rat were studied in vivo after different dietary treatments. Rates were expressed per unit gut length and per unit gut weight; the former was considered to be the more satisfactory under the different dietary conditions. 2. The dietary treatments were either short-t...
متن کاملUtilization of L-methionine and S-adenosyl-L-methionine for methylation of soluble RNA by mouse liver and hepatoma extracts.
amounts of methyl incorporation. Other nucleoside triphosphates besides adenosine triphosphate were capable of sup]x>rting the incorjioration of methyl groups from L-methionine into sRNA. The nonspecificity of the nucleoside triphosphate reaction was shown to be due to an adenosine diphosphokinase reaction and not to nucleoside tri phosphate: L-methionine nucleosidyl transferase activity. Mouse...
متن کاملUtilization of L-Methionine and S-Adenosyl-L-methionine for Methylation of Soluble RNA by Mouse Liver and Hepatoma Extracts1
amounts of methyl incorporation. Other nucleoside triphosphates besides adenosine triphosphate were capable of sup]x>rting the incorjioration of methyl groups from L-methionine into sRNA. The nonspecificity of the nucleoside triphosphate reaction was shown to be due to an adenosine diphosphokinase reaction and not to nucleoside tri phosphate: L-methionine nucleosidyl transferase activity. Mouse...
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ژورنال
عنوان ژورنال: NIPPON KAGAKU KAISHI
سال: 1942
ISSN: 0369-4208,2185-0909
DOI: 10.1246/nikkashi1921.63.1317