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  • 标题:Analysis of anomeric configurations in glyceroglycolipids and glycosphingolipids by chromium trioxide oxidation.
  • 本地全文:下载
  • 作者:R A Laine ; O Renkonen
  • 期刊名称:JLR Papers In Press
  • 印刷版ISSN:0022-2275
  • 电子版ISSN:1539-7262
  • 出版年度:1975
  • 卷号:16
  • 期号:2
  • 页码:102-106
  • 语种:English
  • 出版社:American Society for Biochemistry and Molecular Biology
  • 摘要:Acetylation and CrO(3) oxidation in acetic acid (Angyal and James, Aust. J. Chem. 23: 1209-1221, 1970) was applied to 18 different glyceroglycolipids and glycosphingolipids of known structure. The lipids studied contained from one to five pyranosic monosaccharide units including alpha- and beta-linked glucose, galactose, mannose, and N-acetylgalactosamine and beta-linked N-acetylglucosamine. Monosaccharides bound to the lipids through beta-glycosidic linkages reacted to the extent of 80-97 percent, but in the case of alpha-glycosidic linkages the oxidation proceeded only to the extent of 0-6 percent. A partial reaction was observed in lipids in which a given monosaccharide unit was present in both anomeric forms. Therefore, oxidation with CrO(3) allows the determination of anomeric configurations in simple glycolipids. Samples of only 100-300 mug are required.
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