Comprehensive genomics reveals novel sequence types of multidrug resistant Klebsiella oxytoca with uncharacterized capsular polysaccharide K- and lipopolysaccharide O-antigen loci from the National Hospital of Uganda. [PDF]
Infect Genet EvolMaghembe RS +6 more
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Mutation of wbtJ, a N-formyltransferase involved in O-antigen synthesis, results in biofilm formation, phase variation and attenuation in Francisella tularensis. [PDF]
Microbiology (Reading)Mlynek KD +5 more
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The lipopolysaccharides (O-antigens) of Rhodopseudomonas viridis
Archives of Microbiology, 1974The present paper deals with the isolation, and chemical and serological characterization of the O-antigens (lipopolysaccharides, LPS) of the photosynthetic gram-negative bacterium Rhodopseudomonas viridis. The LPS are extractable with hot phenol/water, but unlike the phenol-soluble LPS of the closely related species Rhodopseudomonas palustris, the R ...
J, Weckesser +4 more
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Identification of Salmonella O antigens by coagglutination
Journal of Clinical Microbiology, 1984This study concerns the preparation of reagents for identifying the somatic O antigens of Salmonella enteritidis. Coagglutination reagents (COAGs) with antibody fixed to killed and stabilized protein A-bearing staphylococci were prepared with antisera which were used for identifying the somatic O antigens of S.
J O, Cohen, L E, Britt, W K, Harrell
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The O-antigen of Salmonella enterica O13 and its relation to the O-antigen of Escherichia coli O127
Carbohydrate Research, 2010The following structure of the O-polysaccharide (O-antigen) of Salmonella enterica O13 was established by chemical analyses along with 2D (1)H and (13)C NMR spectroscopy: -->2)-alpha-l-Fucp-(1-->2)-beta-d-Galp-(1-->3)-alpha-d-GalpNAc-(1-->3)-alpha-d-GlcpNAc-(1--> The O-antigen of S.
Andrei V, Perepelov +7 more
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Structural studies of the Vibrio cholerae o-antigen
Carbohydrate Research, 1979The dominant part of the O-antigen of Vibrio cholerae is a homopolysaccharide composed of (1 leads to 2)-linked 4-amino-4,6-dideoxy-alpha-D-mannopyranosyl (perosaminyl) residues, in amino groups of which are acylated by 3-deoxy-L-glycero-tetronic acid. Most of the amino sugar is decomposed during acid hydrolysis. Treatment of the polymer with anhydrous
L, Kenne +4 more
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Immunochemistry of Salmonella O-Antigens
International Archives of Allergy and Applied Immunology, 2009The binding specificities of antibodies directed against the Salmonella sero-group A-specific O-antigen 2 determinant were characterized by precipitation-inhibition and enzyme-linked immunosorbent assay inhibition tests. Two different antigen O-2-specific antisera were investigated: one conventional factor O-2-serum (elicited by whole heat-killed ...
H. Jörbeck, S.B. Svenson, A.A. Lindberg
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Biosynthesis of lipopolysaccharide O antigens
Trends in Microbiology, 1995Lipopolysaccharide O antigens are important virulence determinants for many bacteria. O-antigen synthesis is an interesting problem in cell-surface assembly. There are two known assembly pathways, which differ in the cellular location of their polymerization steps and in the direction of chain polymerization.
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In Vitro O-Antigen Ligase Assay
2013WaaL is a membrane enzyme that catalyzes the glycosidic bonding of a sugar at the proximal end of the undecaprenyl-diphosphate (Und-PP)-O-antigen with a terminal sugar of the lipid A-core oligosaccharide (OS). This is a critical step in lipopolysaccharide synthesis.
Ruan, Xiang, Valvano, Miguel A
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