Structure of the O-polysaccharide of Photorhabdus luminescens subsp. laumondii containing D-glycero-D-manno-heptose and 3,6-dideoxy-3-formamido-D-glucose

Carbohydr Res. 2012 Apr 1:351:134-7. doi: 10.1016/j.carres.2012.01.021. Epub 2012 Jan 28.

Abstract

The O-polysaccharide from the lipopolysaccharide of a symbiotic bacterium Photorhabdus luminescens subsp. laumondii TT01 from an insect-pathogenic nematode was studied by sugar analysis and (1)H and (13)C NMR spectroscopy and found to contain D-glycero-D-manno-heptose (DDHep) and 3,6-dideoxy-3-formamido-D-glucose (D-Qui3NFo). The following structure of the pentasaccharide repeating unit of the O-polysaccharide was established:

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carbohydrate Sequence
  • Glucosamine / analogs & derivatives*
  • Glucosamine / chemistry
  • Heptoses / chemistry*
  • Magnetic Resonance Spectroscopy
  • Molecular Sequence Data
  • Photorhabdus / chemistry*
  • Polysaccharides / chemistry*

Substances

  • 3,6-dideoxy-3-formamidoglucose
  • Heptoses
  • Polysaccharides
  • glycero-manno-heptose
  • Glucosamine