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Structure of the O-polysaccharide of Escherichia coli O132
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2016 (English)In: Carbohydrate Research, ISSN 0008-6215, E-ISSN 1873-426X, Vol. 427, p. 44-47Article in journal (Refereed) Published
Abstract [en]

Mild acid degradation of the lipopolysaccharide of Escherichia coli O132 released its O-polysaccharide. Analysis by 1D and 2D H-1 and C-13 NMR spectroscopy prior and subsequent to O-deacetylation, in conjunction with sugar analysis, revealed a linear pentasaccharide repeating unit of the O-polysaccharide having the following structure: -> 2)-alpha-D-Galf-(1 -> 3)-alpha-L-Rhap2Ac-(1 -> 4)-alpha-D-Glcp-(1 -> 2)-alpha-L-Rhap-(1 -> 3)-beta-D-GlcpNAc-(1 -> Putative functions of genes in the O-antigen gene cluster of E. coli O132 are consistent with the O-polysaccharide structure.

Place, publisher, year, edition, pages
Elsevier Ltd. , 2016. Vol. 427, p. 44-47
Keywords [en]
Escherichia coli, Lipopolysaccharide, O-Polysaccharide, Bacterial polysaccharide structure, O-Antigen gene cluster
National Category
Organic Chemistry
Identifiers
URN: urn:nbn:se:su:diva-131489DOI: 10.1016/j.carres.2016.03.016ISI: 000375950600007PubMedID: 27101383OAI: oai:DiVA.org:su-131489DiVA, id: diva2:940782
Funder
Swedish Research CouncilAvailable from: 2016-06-21 Created: 2016-06-20 Last updated: 2018-11-12Bibliographically approved

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Widmalm, Göran
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