title: Structure of the O-polysaccharide from the lipopolysaccharide of Providencia alcalifaciens O29.
abstract: The O-polysaccharide was obtained by a mild acid degradation of the lipopolysaccharide of Providencia alcalifaciens O29. Structural studies were performed using sugar and methylation analyses along with 1H and 13C NMR spectroscopy, including two-dimensional 1H, 1H COSY, TOCSY, ROESY, H-detected 1H, 13C HSQC and HMBC experiments. On the basis of the data obtained, the following structure of the branched tetrasaccharide repeating unit of the O-polysaccharide was established: [structure: see text].
authors.affiliation: N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russian Federation.
authors.forename: Ivan S
authors.initials: IS
authors.lastname: Bushmarinov
authors.forename: Olga G
authors.initials: OG
authors.lastname: Ovchinnikova
authors.forename: Nina A
authors.initials: NA
authors.lastname: Kocharova
authors.forename: Filip V
authors.initials: FV
authors.lastname: Toukach
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Torzewska
authors.forename: Alexander S
authors.initials: AS
authors.lastname: Shashkov
authors.forename: Yuriy A
authors.initials: YA
authors.lastname: Knirel
authors.forename: Antoni
authors.initials: A
authors.lastname: Rozalski
mesh_terms: D002240:Carbohydrate Sequence; D008969:Molecular Sequence Data; D019081:O Antigens / Q000737:chemistry*; D011532:Providencia
chemical_list: D019081:O Antigens