title: Structure of the O-polysaccharide of Vibriocholerae O43 containing a new monosaccharide derivative, 4-(N-acetyl-l-allothreonyl)amino-4,6-dideoxy-D-glucose.
abstract: The O-polysaccharide of Vibrio cholerae O43 was studied using chemical analyses, triflic acid solvolysis and 2D NMR spectroscopy, including (1)H/(1)H COSY, TOCSY, NOESY and (1)H/(13)C gradient-selected HSQC experiments. The following structure of the tetrasaccharide repeating unit of the polysaccharide was established: →3)-β-D-Quip4NAcyl-(1→3)-α-D-GalpNAcA-(1→4)-α-D-GalpNAc-(1→3)-α-D-QuipNAc-(1→ where D-QuiNAc stands for 2-acetamido-2,6-dideoxy-D-glucose, D-Qui4NAcyl for 4-(N-acetyl-L-allothreonyl)amino-4,6-dideoxy-D-glucose and D-GalNAcA for 2-acetamido-2-deoxy-D-galacturonic acid.
authors.affiliation: N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia. perepel@ioc.ac.ru
authors.forename: Andrei V
authors.initials: AV
authors.lastname: Perepelov
authors.forename: Nina A
authors.initials: NA
authors.lastname: Kocharova
authors.forename: Yuriy A
authors.initials: YA
authors.lastname: Knirel
authors.forename: Per-Erik
authors.initials: PE
authors.lastname: Jansson
authors.forename: Andrej
authors.initials: A
authors.lastname: Weintraub
mesh_terms: D002473:Cell Wall / Q000737:chemistry*; D003847:Deoxyglucose / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D004187:Disaccharides / Q000737:chemistry; D015394:Molecular Structure; D019081:O Antigens / Q000737:chemistry*; D014312:Trisaccharides / Q000737:chemistry; D014734:Vibrio cholerae / Q000737:chemistry*
chemical_list: C558960:4-(N-acetyl-l-allothreonyl)amino-4,6-dideoxy-D-glucose; D004187:Disaccharides; D019081:O Antigens; D014312:Trisaccharides; D003847:Deoxyglucose