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Glycosylated major urinary protein of the house mouse: characterization of its N-linked oligosaccharides.
A minor component of the major urinary protein complex of the house mouse was chromatographically isolated and ascertained to be a previously suspected glycoprotein. Using highly sensitive mass-spectrometric techniques for sequencing and linkage analysis, the N-linked oligosaccharides of this glycoprotein were characterized. They were determined to be of the complex type with a wide heterogeneity. The heterogeneity was due to both the degree of sialylation and the presence of galactose residues in either beta(1-3) or beta(1-4) linkages. The biantennary structures were the most pronounced glycans, while tri- and tetraantennary entities were minor.
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