Abstract
Cryptococcus neoformans is a fungal pathogen that causes serious disease in immunocompromised individuals. The organism produces a distinctive polysaccharide capsule that is necessary for its virulence, a predominantly polysaccharide cell wall, and a variety of protein- and lipid-linked glycans. The glycan synthetic pathways of this pathogen are of great interest. Here we report the detection of a novel glycosylphosphotransferase activity in C. neoformans, identification of the corresponding gene, and characterization of the encoded protein. The observed activity is specific for UDP-xylose as a donor and for mannose acceptors and forms a xylose-alpha-1-phosphate-6-mannose linkage. This is the first report of a xylosylphosphotransferase activity in any system.
Original language | English |
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Journal | Journal of Biological Chemistry |
Volume | 284 |
Issue number | 52 |
Pages (from-to) | 36118-27 |
Number of pages | 9 |
ISSN | 0021-9258 |
DOIs | |
Publication status | Published - 2009 |