Department of Organic Chemistry, Arrhenius Laboratory, University of Stockholm, S-104 O5 Stockholm Sweden;Institut für Medizinische Mikrobiologie und Epidemiologie der Univesität Rostock DDR-25 Rostock 1 German Democratic Republic
Abstract:
The capsular polysaccharide from Klebsiella type 28 has been studied by methylation analysis, a modified Smith-degradation procedure, and uronic acid degradation with subsequent oxidation and elimination of the substituents of the oxidized residue. The polysaccharide contained the hexasaccharide repeating-unit shown below. The terminal D-glucopyranose residue was hydrolysed by emulsin, indicating a β linkage. The anomeric natures of other glycosidic linkages were determined by characterization of fragments obtained during the degradative studies. The D-galactopyranose residue was not present in any fragment, but is assumed to be α-linked from optical-rotation considerations.
