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  • Title: Absolute configuration of the unique 2,6-dideoxy-4-O-methyl-arabino-hexopyranose of the major phenolic glycolipid antigen from Mycobacterium kansasii.
    Author: Fournie JJ, Riviere M, Puzo G.
    Journal: Eur J Biochem; 1987 Oct 01; 168(1):181-3. PubMed ID: 3665913.
    Abstract:
    The antigenicity and the structure of the major phenolic glycolipid from Mycobacterium kansasii have been established. A monoacetylated tetrasaccharide structure was proposed for the oligosaccharide moiety in which the distal sugar, unique in nature, corresponds to 2,6-dideoxy-4-O-methyl-alpha-arabinohexopyranose. Its terminal position in the oligosaccharide part confers to this residue a key role in the antigen-antibody interaction. By improvement of the methanolysis procedure, this new kind of sugar was obtained in higher amounts than by hydrolysis of the glycolipid. Its 1H-NMR spectrum is presented and its optical rotatory power measurement agrees with a D absolute configuration while the deoxyhexoses involved in the glycolipid tetrasaccharide structure present the L absolute configuration.
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