Structural studies of the lipopolysaccharide of Moritella viscosa strain M2-226

摘要

The structure of the O-specific side chain of the lipopolysaccharide from the Gram-negative psychrophilic bacterium Moritella viscosa strain M2-226, responsible for the winter ulcer in Atlantic salmon, has been determined. Monosaccharide analysis and ~1H and ~(13)C NMR spectroscopy were employed to elucidate the structure. It was concluded that the polysaccharide is composed of a trisaccharide repeating unit with the following structure: →3)-β-d-GlcpNAc-(1→4)-[α-d-GlcpA-(1→3)]- α-l-Fucp-(1→