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Structure of the O-specific polysaccharide from Shewanella japonica KMM 3601 containing 5,7-diacetamido-3,5,7,9-tetradeoxy-ᴅ-glycero-ᴅ-talo-non-2-ulosonic acid
Stockholm University, Faculty of Science, Department of Organic Chemistry.
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2011 (English)In: Biochemistry (Moscow), ISSN 0006-2979, E-ISSN 1608-3040, Vol. 76, no 7, 791-796 p.Article in journal (Refereed) Published
Abstract [en]

Structure of the O-specific polysaccharide chain of the lipopolysaccharide (LPS) of Shewanella japonica KMM 3601 was elucidated. The initial and O-deacylated LPS as well as a trisaccharide representing the O-deacetylated repeating unit of the O-specific  polysaccharide were studied by sugar analysis along with 1H and 13C NMR spectroscopy. The polysaccharide was found to contain a rare higher sugar, 5,7-diacetamido-3,5,7,9-tetradeoxy-ᴅ-glycero-ᴅ-talo-non-2-ulosonic acid (a derivative of 4-epilegionaminic acid, 4eLeg). The following structure of the trisaccharide repeating unit was established:

→4)-α-4eLegp5Ac7Ac-(2→4)-β-ᴅ-GlcpA3Ac-(1→3)-β-ᴅ-GalpNAc-(1→.

Place, publisher, year, edition, pages
2011. Vol. 76, no 7, 791-796 p.
Keyword [en]
Shewanella japonica, O-specific polysaccharide, lipopolysaccharide, marine bacteria, NMR spectroscopy, 5, 7-diacetamido-3, 5, 7, 9-tetradeoxy-D-glycero-D-talo-non-2-ulosonic acid
National Category
Organic Chemistry
Identifiers
URN: urn:nbn:se:su:diva-61776DOI: 10.1134/S0006297911070091ISI: 000295844300009OAI: oai:DiVA.org:su-61776DiVA: diva2:437747
Funder
Swedish Research CouncilKnut and Alice Wallenberg Foundation
Available from: 2011-08-30 Created: 2011-08-30 Last updated: 2017-12-08Bibliographically approved

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