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Structure of the capsular polysaccharide (K98 antigen) of E. coli O7:K98:H6

✍ Scribed by Michael Hahne; Barbara Jann; Klaus Jann

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 519 KB
Volume: 222
Category: Article
ISSN: 0008-6215
DOI: 10.1016/0008-6215(91)89023-9

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✦ Synopsis

The capsular polysaccharide (K98 antigen) of E. coli O7:K98:H6 contains rhamnose, glucuronic acid, and acetate in the molar ratios 3:1:0.6. Methylation analysis, oligosaccharide analysis, and 1D- and 2D-n.m.r. spectroscopy revealed the polysaccharide to be a glucuronic acid-substituted rhamnan with the structure [formula; see text] Of the 3-linked rhamnose residues, approximately 60% are O-acetylated at position 2.

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