Structure of a heptose-containing polysaccharide derived from Komagataeibacter europaeus NBRC 3261

Carbohydr Res. 2020 Jun;492:107989. doi: 10.1016/j.carres.2020.107989. Epub 2020 Mar 27.


An O-antigen polysaccharide fraction (Ke-PS) was isolated from Komagataeibacter europaeus NBRC 3261. In addition to chemical analyses, its structure was characterized by 1D and 2D 1H as well as 13C NMR spectroscopy. The polysaccharide is composed of linear disaccharide repeating unit that consists of d-galactose and d-glycero-d-manno-heptose: →7)-α-d,d-Hepp-(1 → 2)-α-d-Galp-(1 → .

Keywords: Acetic acid bacteria; Chemical analysis; NMR spectroscopy; Polysaccharide.

MeSH terms

  • Acetobacteraceae / chemistry*
  • Carbohydrate Conformation
  • Heptoses / chemistry
  • Heptoses / isolation & purification*
  • Magnetic Resonance Spectroscopy
  • Polysaccharides / chemistry
  • Polysaccharides / isolation & purification*


  • Heptoses
  • Polysaccharides

Supplementary concepts

  • Komagataeibacter europaeus