title: The major oligosaccharides in the large subunit of the hemagglutinin from fowl plague virus, strain Dutch. Structure elucidation by one-dimensional and two-dimensional 1H nuclear magnetic resonance and by methylation analysis.
abstract: The N-glycosidically linked glycans in the large subunit (HA1) of the hemagglutinin from fowl plague virus, strain Dutch (containing about 15%, w/w, of carbohydrates), were liberated by alkaline hydrolysis, and were filtrated through Bio-Gel as the re-N-acetylated oligosaccharide alditols. One major fraction (90%, mol/mol) was obtained. It was subfractionated by concanavalin A affinity chromatography and was analyzed by methylation/capillary gas chromatography/mass fragmentography and especially by one-dimensional and two-dimensional 1H nuclear magnetic resonance. The major HA1 glycans, which are not sialylated, were thus found to comprise about 40%, 30% and 20% (mol/mol), respectively, of biantennary intersected, biantennary, and triantennary N-acetyllactosaminic ('complex') oligosaccharides. About two thirds of the internal GlcNAc residues in these glycans are substituted by Fuc(alpha 1----6), all the triantennary species carry the third Gal(beta 1----4)GlcNAc(beta 1----unit at the Man(alpha 1----6)-branch, and roughly one fourth of the N-acetyllactosamine units in the non-intersected biantennary oligosaccharides are incomplete.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D055598:Chemical Phenomena; D002621:Chemistry; D008401:Gas Chromatography-Mass Spectrometry; D006386:Hemagglutination Tests; D019267:Hemagglutinin Glycoproteins, Influenza Virus; D006389:Hemagglutinins, Viral; D006595:Hexosamines / Q000032:analysis; D009980:Influenza A virus / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008745:Methylation; D009844:Oligosaccharides / Q000032:analysis*; D011134:Polysaccharides / Q000032:analysis
chemical_list: D000596:Amino Acids; D019267:Hemagglutinin Glycoproteins, Influenza Virus; D006389:Hemagglutinins, Viral; D006595:Hexosamines; D009844:Oligosaccharides; D011134:Polysaccharides