Structural studies of the O-specific side chain of the lipopolysaccharide from Escherichia coli O:7

The structure of the O-specific side-chain of the lipopolysaccharide from Escherichia coli O:7 has been investigated, using n.m.r. spectroscopy, methylation analysis, partial hydrolysis, and Smith degradation as the principal methods. It is concluded that the polysaccharide is constructed of repeati...

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Veröffentlicht in:	Carbohydrate research 1984-03, Vol.126 (2), p.249-259
Hauptverfasser:	L'vov, Vjacheslav L., Shashkov, Alexander S., Dmitriev, Boris A., Kochetkov, Nikolay K., Jann, Barbara, Jann, Klaus
Format:	Artikel
Sprache:	eng
Schlagworte:	Bacteriology Biological and medical sciences Carbohydrate Conformation Carbohydrate Sequence Escherichia coli - immunology Fundamental and applied biological sciences. Psychology Isomerism Lipopolysaccharides - isolation & purification Magnetic Resonance Spectroscopy Methylation Microbiology Morphology, structure, chemical composition Optical Rotation
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Zusammenfassung:	The structure of the O-specific side-chain of the lipopolysaccharide from Escherichia coli O:7 has been investigated, using n.m.r. spectroscopy, methylation analysis, partial hydrolysis, and Smith degradation as the principal methods. It is concluded that the polysaccharide is constructed of repeating pentasaccharide units having the structure ▪ where d-Qui pNAc stands for 4-acetamido-4,6-dideoxy- d-glucopyranose. The 13C-n.m.r. spectrum of the polysaccharide has been interpreted completely.
ISSN:	0008-6215 1873-426X
DOI:	10.1016/0008-6215(84)85382-3