Results 261 to 270 of about 183,803 (290)

Biosynthesis of lipopolysaccharide O antigens

Trends in Microbiology, 1995
Lipopolysaccharide 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

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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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-->.
Rima Z. Shaikhutdinova, S. A. Ivanov, Anna N. Kondakova, Alexander S. Shashkov, Olga V. Bystrova, Svetlana V. Dentovskaya, Yuriy A. Knirel, Andrey P. Anisimov   +7 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, Yang Zhengshi, Yoshimasa Kosako, Kohaku Inoue, Eva Aldová, Kenichiro Itoh   +6 more
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The O-antigen of Salmonella enterica O13 and its relation to the O-antigen of Escherichia coli O127

Carbohydrate Research, 2010
The 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.
Sergei D. Shevelev, Lei Wang, Sof'ya N. Senchenkova, Bin Liu, Yuriy A. Knirel, Andrei V. Perepelov, Lu Feng, Alexander S. Shashkov   +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
Per Unger, Tord Holme, Björn Gustafsson, Bengt Lindberg, Lennart Kenne   +4 more
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Microbial O-antigenic hexosaminoglycans

Pure and Applied Chemistry, 1983
Abstract
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New O and H antigens of the international antigenic scheme forPlesiomonas shigelloides

Folia Microbiologica, 2000
A revised update of the International antigenic scheme for Plesiomonas shigelloides is presented. Twenty-six new O (O77-O102) and 10 new H (H42-H50 and H1a1d) antigens have been described since 1994. The sources of antigens are mostly human clinical strains, isolates from warmblooded animals and a few environmental cultures.
E. Aldová, T. Shimada
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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 R. Reeves
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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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