Abstract
Three glycoprotein N-glycans, namely, a disialylated diantennary carbohydrate chain linked to Asn. a monosialylated, fucosylated diantennary glycopeptide with bisecting N-acetylglucosamine, and a tetrasialylated, fucosylated tetra-antennary oligosaccharide. have been investigated by two-dimensional NOE and HOHAHA spectroscopy in 1H2O as solvent. The amide protons of all N-acetylglucosamine and sialic acid residues could
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