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The structure of the capsular polysaccharide from Klebsiella K43

✍ Scribed by Per Edebrink; Per-Erik Jansson; Göran Widmalm; Wolfgang Nimmich

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
506 KB
Volume
257
Category
Article
ISSN
0008-6215

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✦ Synopsis

The structure of the capsular polysaccharide from Klebsiella type K43 has been investigated using sugar and methylation analysis, uranic acid degradation, and NMR spectroscopy on the native and the O-deacetylated polysaccharide. It is concluded that the polysaccharide is composed of pentasaccharide repeating units with the structure

The polysaccharide contains approximately 0.4 equiv of 0-acetyl group per repeating unit, located at a primary position.

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The structure of the capsular polysaccharide elaborated by KlebsieUa type 7 has been investigated. NMR spectroscopy together with sugar and methylation analysis have been the main methods used. A uronic acid degradation was also employed. The polysaccharide consists of hexasaccharide repeating units