Journal
CARBOHYDRATE RESEARCH
Volume 344, Issue 7, Pages 915-920Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carres.2009.03.003
Keywords
Cryptococcus neoformans; GalXM; CPS; Glucuronic acid; Polysaccharides, structure
Funding
- NIH [R01 GM71007]
- Azadi laboratory by DOE [DE-FG09-93ER-20097]
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The structure of galactoxylomannan, a capsular polysaccharide from the opportunistic yeast Cryptococcus neoformans, was re-examined by NMR spectroscopy and GC-MS. The residue that is 3-linked to the side chain galactose and was previously assigned as beta-D-xylose [Vaishnav, V. V.; Bacon. B. E.; O'Neill, M.; Cherniak, R. Carbohydr. Res. 1998, 306, 315-330] was determined to be P-D-glucuronic acid. A revised structure for this polymer is presented, along with a proposal that this compound be termed glucuronoxylomannogalactan (GXMGal). (C) 2009 Elsevier Ltd. All rights reserved.
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