The O-specific polysaccharide of the marine bacterium Rheinheimera pacifica KММ 1406T containing D- and L-2-acetamido-2-deoxy-galacturonic acids

Carbohydr Res. 2014 Jul 23:394:1-6. doi: 10.1016/j.carres.2014.04.021. Epub 2014 May 15.

Abstract

The O-specific polysaccharide was isolated from the lipopolysaccharide of Rheinheimera pacifica KММ 1406T and studied by chemical methods along with 1H and 13C NMR spectroscopy. It was shown that the polysaccharide contains one residue each of 2-acetamido-2-deoxy-D-galactose (D-GalNAc), 2-acetamido-2-deoxy-D- and 2-acetamido-2-deoxy-L-galacturonic acids (D-GalNAcA, L-GalNAcA), 2,4-diacetamido-2,4,6-trideoxy-D-glucose (D-QuiNAc4NAc), and 4-(N-acetyl-D-alanyl)amino-4,6-dideoxy-D-glucose (D-Qui4NAlaAc) and has the following structure: →4)-α-D-GalpNAc-(1→4)-α-L-GalpNAcA-(1→3)-β-D-QuipNAc4NAc-(1→2)-β-D-Quip4NDAlaAc-(1→4)-α-D-GalpNAcA-(1→

Keywords: 4-(N-Acetyl-d-alanyl)amino-4,6-dideoxy-d-glucose; Marine bacterium; O-Specific polysaccharide; Rheinheimera pacifica; Structure.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aquatic Organisms
  • Carbohydrate Sequence
  • Chromatiaceae / chemistry*
  • Hexuronic Acids
  • Isomerism
  • Magnetic Resonance Spectroscopy
  • Molecular Sequence Data
  • O Antigens / chemistry*

Substances

  • 2-acetamido-2-deoxy-galacturonic acid
  • Hexuronic Acids
  • O Antigens