title: Structural studies of the O-polysaccharide of Pragia fontium 97U124 containing 2-acetamido-2,4,6-trideoxy-4-(D-glyceroyl)amino-D-glucose.
abstract: The O-polysaccharide was obtained by acid hydrolysis of the lipopolysaccharide of Pragia fontium 97U124 and studied by sugar analysis and 1D and 2D NMR spectroscopy. A new bacillosamine derivative, 2-acetamido-2,4,6-trideoxy-4-(D-glyceroyl)amino-D-glucose (D-QuiNAc4NAcyl), was identified as a polysaccharide constituent. The following structure of the O-polysaccharide was established →3)-α-L-FucpNAc-(1→3)-α-L-FucpNAc-(1→3)-β-D-QuipNAc4NAcyl-(1→ This structure is closely related to that of the D-QuiNAc4NAc-containing O-polysaccharide of Pseudomonas aurantiaca IMV 31 established earlier (Knirel, Y. A.; Zdorovenko, G. M.; Veremeychenko, S. N.; Lipkind, G. M.; Shashkov, A. S.; Zakharova, I. Y.; Kochetkov, N. K. Bioorg. Khim.1988, 14, 352-358).
authors.affiliation: ND Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia. olga.valueva@gmail.com
authors.forename: Olga A
authors.initials: OA
authors.lastname: Valueva
authors.forename: Evelina L
authors.initials: EL
authors.lastname: Zdorovenko
authors.forename: Lyudmyla D
authors.initials: LD
authors.lastname: Varbanets
authors.forename: Vladimir V
authors.initials: VV
authors.lastname: Shubchinskiy
authors.forename: Alexander S
authors.initials: AS
authors.lastname: Shashkov
authors.forename: Yuriy A
authors.initials: YA
authors.lastname: Knirel
mesh_terms: D002236:Carbohydrate Conformation; D004755:Enterobacteriaceae / Q000737:chemistry* / Q000254:growth & development; D005944:Glucosamine / Q000031:analogs & derivatives* / Q000737:chemistry; D006868:Hydrolysis; D019081:O Antigens / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D019081:O Antigens; D005944:Glucosamine