Structural studies of acidic polymers produced by the O23 reference strain of Serratia marcescens: presence of amide-linked glutamic acid.
The major fraction of an acidic galactoglucomannan present in lipopolysaccharide extracts from cell walls of the O23 reference strain of Serratia marcescens has the tetrasaccharide repeating-unit shown. In a minor fraction, L-glutamic acid was amide-linked to about half of the D-glucuronic acid residues. The possible contributions of the acidic polymers and a neutral polymer produced by the organism to cross-reactions with other serogroups are discussed.
Oxley
D
D
School of Chemistry, University, Hull, Great Britain.
Wilkinson
S G
SG
D000143:Acids; D000577:Amides / Q000032:analysis*; D002240:Carbohydrate Sequence; D005971:Glutamates / Q000032:analysis*; D018698:Glutamic Acid; D008969:Molecular Sequence Data; D015394:Molecular Structure; D011135:Polysaccharides, Bacterial / Q000737:chemistry*; D012703:Serotyping; D012706:Serratia marcescens / Q000032:analysis* / Q000145:classification
D000143:Acids; D000577:Amides; D005971:Glutamates; D011135:Polysaccharides, Bacterial; D018698:Glutamic Acid