Centre de Recherches sur les Macromolécules Végétales, C.N.R.S., 53X, 38041 Grenoble cédex France;Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1W5 Canada
Abstract:
The structure of the repeating unit of the capsular polysaccharide from Klebsiella type 41 has been investigated by methylation analysis of the original and the carboxyl-reduced polymer, uronic acid degradation, Smith degradation, and graded acid hydrolysis. Proton- and 13C-n.m.r. spectroscopy of the original polysaccharide and of the fragments obtained by various methods confirmed some structural features and allowed determination of the anomeric configuration of the glycosidic linkages. This polysaccharide is shown to have the following heptasaccharide repeating-unit:
