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  • Title: Structural elucidation of the major phenolic glycolipid from Mycobacterium kansasii. II. Presence of a novel dideoxyhexose.
    Author: Fournié JJ, Rivière M, Papa F, Puzo G.
    Journal: J Biol Chem; 1987 Mar 05; 262(7):3180-4. PubMed ID: 3818638.
    Abstract:
    A novel O-methyl-2,6-dideoxyhexose was isolated from the major phenolic glycolipid (previously called mycoside A) of Mycobacterium kansasii. Its molecular weight (162) was determined by gas chromatography-mass spectrometry analysis (chemical ionization with ammonia as reactant gas) of its underivatized reducing form. The methoxyl group was located by electron impact-mass spectrometry of its alditol acetate. The configuration was established by 1H NMR of its peracetylated derivative. The structure 2,6-dideoxy-4-O-methyl-arabino-hexopyranose is proposed for this new sugar. Evidence is also presented that the phenolic glycolipid previously called mycoside A is an antigen of M. kansasii since it reacts with rabbit antisera raised against whole M. kansasii.
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