Structure of four acidic oligosaccharides from the jelly coat surrounding the eggs of Xenopus laevis.
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.
Plancke
Y
Y
Laboratoire de Chimie Biologique, Unité Mixte de Recherches du CNRS n. 111, Université des Sciences et Technologies de Lille, Villeneuve d'Ascq, France.
Wieruszeski
J M
JM
Alonso
C
C
Boilly
B
B
Strecker
G
G
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
D009844:Oligosaccharides; D011134:Polysaccharides; D013402:Sugar Alcohols