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  • Title: Primary structure of neutral oligosaccharides derived from respiratory-mucus glycoproteins of a patient suffering from bronchiectasis, determined by combination of 500-MHz 1H-NMR spectroscopy and quantitative sugar analysis. 2. Structure of 19 oligosaccharides having the GlcNAc beta(1----3)GalNAc-ol core (type 3) or the GlcNAc beta(1----3)[GlcNAc beta(1----6)]GalNAc-ol core (type 4).
    Author: Breg J, Van Halbeek H, Vliegenthart JF, Klein A, Lamblin G, Roussel P.
    Journal: Eur J Biochem; 1988 Feb 01; 171(3):643-54. PubMed ID: 3345750.
    Abstract:
    A pool of neutral carbohydrate chains was prepared from respiratory mucins of a patient suffering from bronchiectasis. Fractionation by HPLC led to 35 smaller-size oligosaccharide-alditols; the structure of 16 oligosaccharide-alditols with core type 1 or type 2 has been established (Klein, A., Lamblin, G., Lhermitte, M., Roussel, P., Breg, J., Van Halbeek, H. & Vliegenthart, J.F.G., preceding paper in this journal). In this second part, we identified 19 oligosaccharide-alditols possessing core types 3 and 4. Nine of the structures (1, 5, 9, 6, 10b, 13, 19, 15b and 18.1) have been described previously to be present in cystic fibrosis mucins [Lamblin, G., Boersma, A., Lhermitte, M., Roussel, P., Mutsaers, J.G.H. M., Van Halbeek, H. & Vliegenthart, J.F.G. (1984) Eur. J. Biochem. 143, 227-234]. The remaining ten are new structures isolated from bronchial mucins; they are all extensions of the above-mentioned nine oligosaccharides. These compounds are octassaccharide-alditols containing the Y determinant together with the H determinant of either backbone-type 1 or 2, and partial structures thereof: (Formula: see text) and 21b, which is 23c without Fuc alpha(1----3), 18.2, which is 23c without any Fuc in the 6-branch, and 22b, which is 23c without Fuc in the 3-branch.
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