title: Structural studies of an acidic galactomannan from the reference strain for Serratia marcescens serogroup O4.
abstract: An acidic, partially acetylated galactomannan has been isolated from the lipopolysaccharide of the reference strain (C.D.C. 864-57) for Serratia marcescens serogroup O4. From the results of methylation analysis, Smith degradations, and n.m.r. spectroscopic studies of the O-deacetylated polymer, it was concluded that the repeating unit has the structure shown, in which the acetal-linked pyruvic acid has the R configuration. The polymer is believed to confer O specificity on the organism, but not to constitute the side chain of the lipopolysaccharide. (formula; see text).
authors.affiliation: Department of Chemistry, University, Hull, Great Britain.
authors.forename: D
authors.initials: D
authors.lastname: Oxley
authors.forename: S G
authors.initials: SG
authors.lastname: Wilkinson
mesh_terms: D000107:Acetylation; D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D002849:Chromatography, Gas; D005690:Galactose / Q000031:analogs & derivatives; D009682:Magnetic Resonance Spectroscopy; D008351:Mannans; D008745:Methylation; D008969:Molecular Sequence Data; D015394:Molecular Structure; D008970:Molecular Weight; D012706:Serratia marcescens / Q000032:analysis*
chemical_list: D008351:Mannans; C012990:galactomannan; D005690:Galactose