title: Structure of four acidic oligosaccharides from the jelly coat surrounding the eggs of Xenopus laevis.
abstract: Novel acidic oligosaccharides were released by reductive beta-elimination from the jelly coat eggs of the Anuran Xenopus laevis. According to the structural analysis of these oligosaccharide-alditols, the following structures are proposed: [sequence: see text] where Kdn, 3-deoxy-D-glycero-D-galactononulosonic acid. These results confirm the species specificity of the glycanic structures present in the secretion of amphibian oviducts, and may form the basis of a specific egg-sperm recognition process.
authors.affiliation: Laboratoire de Chimie Biologique, Unité Mixte de Recherches du CNRS n. 111, Université des Sciences et Technologies de Lille, Villeneuve d'Ascq, France.
authors.forename: Y
authors.initials: Y
authors.lastname: Plancke
authors.forename: J M
authors.initials: JM
authors.lastname: Wieruszeski
authors.forename: C
authors.initials: C
authors.lastname: Alonso
authors.forename: B
authors.initials: B
authors.lastname: Boilly
authors.forename: G
authors.initials: G
authors.lastname: Strecker
mesh_terms: D000818:Animals; D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D002851:Chromatography, High Pressure Liquid; D005306:Fertilization; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D009844:Oligosaccharides / Q000737:chemistry* / Q000302:isolation & purification; D010063:Ovum / Q000737:chemistry* / Q000378:metabolism; D011134:Polysaccharides / Q000737:chemistry; D013402:Sugar Alcohols / Q000737:chemistry* / Q000302:isolation & purification; D014982:Xenopus laevis
chemical_list: D009844:Oligosaccharides; D011134:Polysaccharides; D013402:Sugar Alcohols