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Structural studies of the Vibrio mimicus W-26768 O-antigen polysaccharide

✍ Scribed by Lennart Kenne; Bengt Lindberg; M.Mahbubur Rahman; Mohammed Mosihuzzaman

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
602 KB
Volume
243
Category
Article
ISSN
0008-6215

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✦ Synopsis

The structure of the Vibrio mimicus W-26768 O-antigen polysaccharide has been investigated by sugar and methylation analyses, Smith degradation, and NMR spectroscopy. It is proposed that it is composed of chains of p-(1 + 4).linked 3,6-dideoxy-3-[(R)-3-hydroxybutyramido]-D-glucopyranosyl residues (o-Quip3NR), -60% of which are substituted in the 2-position with 2-acetamido-2-deoxy-a-D-galactopyranosyl groups. The polysaccharide does not seem to be composed of oligosaccharide repeating units but has a less regular structure, schematically indicated below.

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