Structural analysis of hexa to dodecaoligosaccharide-alditols released by reductive β-elimination from oviducal mucins of Bufo bufo
Open Access
- 1 October 1997
- journal article
- research article
- Published by Oxford University Press (OUP) in Glycobiology
- Vol. 7 (8) , 1129-1151
- https://doi.org/10.1093/glycob/7.8.1129
Abstract
Hexa to dodecasaccharide-alditols of the jelly coat surrounding the eggs of the toad Bufo bufo were studied by methylation analysis, MALDI-TOF mass spectrometry, and 1H-NMR spectroscopy. These highly species-specific carbohydrate chains exhibit new structural features, such as the elongation of the blood group A determinant with an external α-1,3-linked galactose unit, or ramification belonging from a fucosylated galactose. The most representative oligosaccharide-alditol of the series was defined as following: Since the jellies surrounding amphibian eggs are involved in egg-sperm interactions, these structural investigations can provide biochemical support for exploring the fertilization process.Keywords
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