{"title":"[生物不稳定甲基的供体和受体:用烟酰胺-葫芦巴碱系统表征]。","authors":"W Ciusa","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>The problem of transmethylations, the genesis of the labile methyl groups, the chemical structure of a transmethylating active substance are briefly explained and discussed. A methodology to characterize quickly the substances donor and acceptor of methyl groups is here described: it utilizes the ox crystalline lens in the presence of nicotinamide. The methodology is based on the irreversible system nicotinamide-trigonellinamide, by means of the vitamin B1 as catalyst.</p>","PeriodicalId":75427,"journal":{"name":"Acta vitaminologica et enzymologica","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"[Donors and receptors of biologically labile methyl groups: characterization with a nicotinamide-trigonelline system].\",\"authors\":\"W Ciusa\",\"doi\":\"\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The problem of transmethylations, the genesis of the labile methyl groups, the chemical structure of a transmethylating active substance are briefly explained and discussed. A methodology to characterize quickly the substances donor and acceptor of methyl groups is here described: it utilizes the ox crystalline lens in the presence of nicotinamide. The methodology is based on the irreversible system nicotinamide-trigonellinamide, by means of the vitamin B1 as catalyst.</p>\",\"PeriodicalId\":75427,\"journal\":{\"name\":\"Acta vitaminologica et enzymologica\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1984-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Acta vitaminologica et enzymologica\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta vitaminologica et enzymologica","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
[Donors and receptors of biologically labile methyl groups: characterization with a nicotinamide-trigonelline system].
The problem of transmethylations, the genesis of the labile methyl groups, the chemical structure of a transmethylating active substance are briefly explained and discussed. A methodology to characterize quickly the substances donor and acceptor of methyl groups is here described: it utilizes the ox crystalline lens in the presence of nicotinamide. The methodology is based on the irreversible system nicotinamide-trigonellinamide, by means of the vitamin B1 as catalyst.