Structure of three Kdn‐containing oligosaccharide‐alditols released from oviducal secretions of Ambystoma tigrinum: characterization of the carbohydrate sequence Fuc (α1–5) [Fuc (α1–4)] Kdn (α2—3/6)

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Abstract
Oligosaccharide-alditols released by reductive β-elimination from the egg jelly coat of Ambystoma tigrinum were analyzed by 1 H NMR spectroscopy. As observed for five other amphibian species, these carbohydrate chains are highly species-specific, and should support the species-specificity of gamete interaction. The carbohydrate chains of Ambystoma tigrinum are characterized by the presence of a new type of sequence: Fuc (α1–5) [(Fuc (α1–4)] Kdn (α2–3/6).