title: Structures of polysaccharides and oligosaccharides of some Gram-negative marine Proteobacteria.
abstract: The chemical structures of polysaccharides and LPS core oligosaccharides, isolated from various Gram-negative marine bacteria from the genera Pseudoalteromonas and Shewanella belonging to the Alteromonadaceae family and gamma-subclass of Proteobacteria, are reviewed. The polysaccharides are distinguished by the acidic character (e.g., due to the presence of hexuronic and aldulosonic acids and their derivatives) and the occurrence of unusual sugars, including N-acyl derivatives of 6-deoxyamino sugars, such as N-acetyl-D-quinovosamine, N-acetyl-L-fucosamine and N-acetyl-6-deoxy-L-talosamine, and higher sugars like 2,6-dideoxy-2-acetamido-4-C-(3'-carboxamide-2',2'-dihydroxypropyl)-D-galactopyranose (shewanellose). Many constituent sugars have various uncommon non-sugar substituents, such as alanine, formic, lactic and hydroxybutyric acids, sulfate, phosphate, and 2-aminopropane-1,3-diol.
authors.affiliation: Pacific Institute of Bioorganic Chemistry, Far East Branch of the Russian Academy of Sciences, Vladivostok 690022, Russian Federation.
authors.forename: Evgeny L
authors.initials: EL
authors.lastname: Nazarenko
authors.forename: Nadezhda A
authors.initials: NA
authors.lastname: Komandrova
authors.forename: Raisa P
authors.initials: RP
authors.lastname: Gorshkova
authors.forename: Svetlana V
authors.initials: SV
authors.lastname: Tomshich
authors.forename: Vladimir A
authors.initials: VA
authors.lastname: Zubkov
authors.forename: Michelle
authors.initials: M
authors.lastname: Kilcoyne
authors.forename: Angela V
authors.initials: AV
authors.lastname: Savage
mesh_terms: D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D006090:Gram-Negative Bacteria / Q000378:metabolism*; D008070:Lipopolysaccharides / Q000737:chemistry; D008969:Molecular Sequence Data; D019081:O Antigens / Q000737:chemistry; D009844:Oligosaccharides / Q000737:chemistry*; D011135:Polysaccharides, Bacterial / Q000737:chemistry*; D020560:Proteobacteria / Q000378:metabolism*; D031161:Pseudoalteromonas / Q000378:metabolism; D020592:Shewanella / Q000378:metabolism
chemical_list: D008070:Lipopolysaccharides; D019081:O Antigens; D009844:Oligosaccharides; D011135:Polysaccharides, Bacterial