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Structure of the capsular polysaccharide from Streptococcus pneumoniae type 23

✍ Scribed by Abhijit Roy; Nirmolendu Roy

Publisher: Elsevier Science
Year: 1984
Tongue: English
Weight: 477 KB
Volume: 126
Category: Article
ISSN: 0008-6215
DOI: 10.1016/0008-6215(84)85384-7

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✦ Synopsis

The capsular polysaccharide from Streptococcus pneumoniae Type 23 (S-23) was found to contain D-galactose, D-glucose, L-rhamnose, glycerol, and phosphorus in the ratios of 1: 1: 2:0.6: 1. Methylation analysis provided information about the linkages of the different sugar units. The sequence of the different sugar residues was confirmed by Smith degradation. Oxidation of S-23 with chromium trioxide indicated that all of the sugar units have the j? configuration. The results suggest the following structure for the repeating unit.

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