title: Structure of the O-specific polysaccharide from a marine bacterium Echinicola vietnamensis KММ 6221Т.
abstract: The O-specific polysaccharide was isolated from the lipopolysaccharide of Echinicola vietnamensis and studied by chemical methods along with 1H and 13C NMR spectroscopy, including 2D 1H, 1H COSY, TOCSY, ROESY, 1H, 13C HSQC, HMBC, and H2BC experiments. It was found that the polysaccharide is built up of branched tetrasaccharide repeating units, containing 2-acetamido-2-deoxy-D-glucuronic acid (GlcNAcA), 2-acetamido-2-deoxy-D-galactose (GalNAc), and D-glucuronic acid (GlcA) with a terminal residue of 3,6-dideoxy-L-xylo-hexose (colitose, Col) and has the following structure. α-Colp1-->2-->4)-β-D-GlcpNAcA-(1-->4)-β-D-GlcpA-(1-->3)-α-D-GalpNAc-(1-->
authors.affiliation: G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far East Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russian Federation. Electronic address: tomsh@piboc.dvo.ru.
authors.forename: Svetlana V
authors.initials: SV
authors.lastname: Tomshich
authors.affiliation: G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far East Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russian Federation.
authors.forename: Maxim S
authors.initials: MS
authors.lastname: Kokoulin
authors.affiliation: G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far East Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russian Federation.
authors.forename: Anatoliy I
authors.initials: AI
authors.lastname: Kalinovsky
authors.affiliation: G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far East Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russian Federation.
authors.forename: Nadezhda A
authors.initials: NA
authors.lastname: Komandrova
authors.affiliation: G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far East Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russian Federation.
authors.forename: Ol'ga I
authors.initials: OI
authors.lastname: Nedashkovskaya
mesh_terms: D041963:Bacteroidetes / Q000737:chemistry*; D002240:Carbohydrate Sequence; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D019081:O Antigens / Q000737:chemistry*
chemical_list: D019081:O Antigens
keywords: 3,6-Dideoxy-l-xylo-hexose (Col); Bacterial polysaccharide structure; Echinicola vietnamensis; Marine bacterium; O-specific polysaccharide