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Structure of an acidic polysaccharide from the marine bacteriumPseudoalteromonas flavipulchraNCIMB 2033T

Authors
Journal
Carbohydrate Research
0008-6215
Publisher
Elsevier
Publication Date
Volume
338
Issue
5
Identifiers
DOI: 10.1016/s0008-6215(02)00483-4
Keywords
  • Bacterial Polysaccharide
  • Structures
  • Pseudoalteromonas Flavipulchra
  • 6-Deoxy-L-Talose
  • 3-Deoxy-D-Manno-Oct-2-Ulosonic Acid

Abstract

Abstract An acidic polysaccharide was isolated from Pseudoalteromonas flavipulchra type strain NCIMB 2033 T and found to consist of 6-deoxy- l-talose ( l-6dTal), d-galactose and 3-deoxy- d- manno-oct-2-ulosonic acid (Kdo). The identities of the monosaccharides were ascertained by sugar analysis and 1D 1H and 13C NMR spectroscopy in conjunction with 2D COSY, TOCSY, ROESY and 1H, 13C HMQC experiments, which enabled determination of the following structure of the trisaccharide repeating unit of the polysaccharide: →3)- α- l -6 dTalp4 Ac-(1→3)- β- d - Galp-(1→7)- α- Kdop-(2→

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