The chemical structure of the K14-antigenic polysaccharide (K14 antigen) of Escherichia coli 06:K14:H31 was elucidated by determination of the composition, 1H- and 13C-n.m.r. spectroscopy, periodate oxidation, and study of the oligosaccharides obtained by partial hydrolysis. The polysaccharide consi
The structure of Escherichia coli K31 antigen
β Scribed by Guy G.S. Dutton; Agyeman Kuma-Mintah; Haralambous Parolis
- Book ID
- 107725974
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 664 KB
- Volume
- 197
- Category
- Article
- ISSN
- 0008-6215
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The structure of the capsular antigen of E. coli K26 has been found by a combination ofchemical and spectroscopic techniques to be of the "5+ I" type shown. An important step was the simultaneous separation and identification of a mixture of neutral and acidic oligosaccharides by g.1.c. c.i.-m.s.
The primary structure of the acidic capsular antigen of Esckrkti coli 08: K50: Hwas shown by glycose analysis, methylation analysis, and one-and two-dimensional 'H and 13C NMR spectroscopy to be composed of repeating linear tetrasaccharide units having the structure: + 3)-@-Rhap-(l + &Y-D-GlcpNAc-(l