The O-linked oligosaccharides attached to human erythrocyte glycophorins were extensively characterized. In addition to the previously described disialylated tetrasaccharide, NeuNAc alpha 2----3Gal beta 1----3 (Neu-NAc alpha 2----6)GalNAcOH and monosialylated trisaccharide, NeuNAc alpha 2----3Gal beta 1----3GalNAcOH, novel trisialylated oligosaccharides were isolated. Methylation analysis, fast atom bombardment-mass spectrometry, and enzymatic degradation were used to elucidate the following novel structures: formula; see text: These results suggest that O-linked oligosaccharides with a disialosyl group, NeuNAc alpha 2----8NeuNAc alpha 2----, may be present in various tissues.
Structures of novel sialylated O-linked oligosaccharides isolated from human erythrocyte glycophorins.
Minoru FukudaS,M. Lauffenburger,Hiroshi Sasakij,Mark E. Rogersll,Anne Dellll
Published 1987 in Journal of Biological Chemistry
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- Publication year
1987
- Venue
Journal of Biological Chemistry
- Publication date
1987-09-05
- Fields of study
Biology, Medicine, Chemistry
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Semantic Scholar, PubMed
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