title: Structures of the O-specific polysaccharides and a serological cross-reactivity of the lipopolysaccharides of Proteus mirabilis O24 and O29.
abstract: Strains of Proteus mirabilis belonging to serogroups O24 and O29 are frequent in clinical specimens. Anti-P. mirabilis O24 serum cross-reacted with the lipopolysaccharide (LPS) of P. mirabilis O29 and vice versa. The structures of the O-specific polysaccharides (OPSs, O-antigens) of both LPSs were established using sugar analysis and one- and two-dimensional 1H- and 13C-NMR spectroscopy and found to be different. SDS-PAGE and Western immunoblotting suggested that the serological cross-reactivity of the LPSs is due to a common epitope(s) on the core-lipid A moiety, rather than on the OPS. Therefore, the epitope specificity and the structures of the O-antigens studied are unique among Proteus serogroups.
authors.affiliation: Institute of Microbiology and Immunology, University of Lodz, Poland.
authors.forename: E
authors.initials: E
authors.lastname: Literacka
authors.forename: A V
authors.initials: AV
authors.lastname: Perepelov
authors.forename: S N
authors.initials: SN
authors.lastname: Senchenkova
authors.forename: G V
authors.initials: GV
authors.lastname: Zatonsky
authors.forename: A S
authors.initials: AS
authors.lastname: Shashkov
authors.forename: Y A
authors.initials: YA
authors.lastname: Knirel
authors.forename: W
authors.initials: W
authors.lastname: Kaca
mesh_terms: D000907:Antibodies, Bacterial / Q000097:blood; D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D003429:Cross Reactions; D000939:Epitopes / Q000737:chemistry; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D019081:O Antigens / Q000737:chemistry*; D011512:Proteus Infections / Q000276:immunology; D011513:Proteus mirabilis / Q000737:chemistry* / Q000145:classification / Q000276:immunology*; D012703:Serotyping
chemical_list: D000907:Antibodies, Bacterial; D000939:Epitopes; D019081:O Antigens