Results 301 to 310 of about 451,240 (331)

In Vitro O-Antigen Ligase Assay

2013
WaaL 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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O antigen-dependent mutant of bacteriophage T5

Journal of Virology, 1984
A T5 mutant is described which showed normal infection of Escherichia coli F but virtually no infection of cells lacking the E. coli F O antigen. This was due to very poor adsorption to the O antigen-deficient cells. Inactivation kinetics with anti-T5 serum and adsorption and desorption kinetics to receptor-deficient E.
K J, Heller, D, Bryniok
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The lipopolysaccharides (O-antigens) of Rhodopseudomonas viridis

Archives of Microbiology, 1974
The 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, G, Drews, J, Roppel, H, Mayer, I, Fromme   +4 more
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O‐Antigenic Cross‐Reactivity In Fusobacterium Nucleatum

Acta Pathologica Microbiologica Scandinavica Section B Microbiology, 1979
Lipopolysaccharides (LPS) of the same chemotype isolated from seven strains of Fusobacterium nucleatum were examined by indirect haemagglutination and inhibition of haemagglutination in unabsorbed and absorbed antisera. Four common major antigenic specificities were detected, and two of the LPS examined contained antigenic specificities not shared with
T, Hofstad, N, Skaug, T, Bjørnland
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LIPOPOLYSACCHARIDE O-ANTIGEN PROMOTES PERSISTENT MURINE BACTEREMIA

Shock, 2007
Bacteremia is a common complication of pneumonia with Klebsiella pneumoniae. In the previous work, we have shown that the lipopolysaccharide (LPS) O-antigen in K. pneumoniae O1:K2 contributes to lethality during pneumonia in part by promoting bacteremia. In the current work, we studied an O-antigen-deficient K.
Joanelle Z, Lugo, Sarah, Price, Julia E, Miller, Itzhak, Ben-David, Vija A, Merrill, Vija J, Merrill, Peter, Mancuso, Jason B, Weinberg, John G, Younger   +8 more
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New O and H antigens ofPlesiomonas shigelloides and their O antigenic relationships toShigella boydii

Current Microbiology, 1994
Twenty six new O (O51-O76) and 24 new H (H18-H41) antigens forPlesiomonas shigelloides serotyping scheme were defined. The O antigens 54 and 57 were closely related to those ofShigella boydii 2 and 9, respectively, in an a, b-a, c type of relationship.
Toshio Shimada, Eiji Arakawa, Kenichiro Itoh, Yoshimasa Kosako, Kohaku Inoue, Yang Zhengshi, Eva Aldova   +6 more
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Structure of O-Antigens

2011
The lipopolysaccharide (LPS) is the major constituent of the outer leaflet of the outer membrane of Gram-negative bacteria. Its lipid A moiety is embedded in the membrane and serves as an anchor for the rest of the LPS molecule. The outermost repetitive glycan region of the LPS is linked to the lipid A through a core oligosaccharide (OS), and is ...
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Structure of the O-antigen of Yersinia pseudotuberculosis O:4b

Carbohydrate Research, 2009
The structure of the long-chain O-antigen of Yersinia pseudotuberculosis O:4b containing two uncommon deoxy sugars, tyvelose (3,6-dideoxy-d-arabino-hexose, Tyv) and 6-deoxy-d-manno-heptose (D-6dmanHep), was established by 1D and 2D NMR spectroscopy as alpha-Tyvp-(1-->3)-beta-D-6dmanHepp 1-->4 -->3)-alpha-D-Galp-(1-->3)-beta-D-GlcpNac-(1-->.
Anna N, Kondakova, Olga V, Bystrova, Rima Z, Shaikhutdinova, Sergey A, Ivanov, Svetlana V, Dentovskaya, Alexander S, Shashkov, Yuriy A, Knirel, Andrey P, Anisimov   +7 more
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Structural studies of the Vibrio cholerae o-antigen

Carbohydrate Research, 1979
The 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, B, Lindberg, P, Unger, T, Holme, J, Holmgren   +4 more
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Biosynthesis of O-antigens: genes and pathways involved in nucleotide sugar precursor synthesis and O-antigen assembly

Carbohydrate Research, 2003
The O-antigen is an important component of the outer membrane of Gram-negative bacteria. It is a repeat unit polysaccharide and consists of a number of repeats of an oligosaccharide, the O-unit, which generally has between two and six sugar residues.
Gabrielle, Samuel, Peter, Reeves
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