A structural investigation of the capsular polysaccharide of Escherichia coli O9:K57:H32.
The primary structure of the acidic capsular polysaccharide of Escherichia coli K57 was elucidated by methylation analysis and 1D- and 2D-n.m.r. spectroscopy. The repeating unit was identified as a linear tetrasaccharide having the structure shown. ----2)-beta-D-Ribf-(1----4)-beta-D-Galp-(1----3)-alpha-D-GlcpNAc-( 1----4)-alpha - D-GalpA-(1----.
School of Pharmaceutical Sciences, Rhodes University, Grahamstown, South Africa.
H
H
Parolis
L A
LA
Parolis
S M
SM
Stanley
G G
GG
Dutton
D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D004926:Escherichia coli / Q000276:immunology*; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D011135:Polysaccharides, Bacterial
D011135:Polysaccharides, Bacterial