Results 1 to 10 of about 11,359,663 (315)

Lipopolysaccharide O-antigen profiles of Helicobacter pylori strains from Southwest China [PDF]

open access: yesBMC Microbiology, 2023
Background Helicobacter pylori lipopolysaccharide (LPS) structures vary among strains of different geographic origin. The aim of this study was to characterize the LPS O-antigen profiles of H.
Xiaoqiong Tang   +7 more
doaj   +2 more sources

BIOLOGICAL ACTIVITY OF Rhizobium LIPO-POLYSACCHARIDES: A REVIEW ARTICLE [PDF]

open access: yesMesopotamia Journal of Agriculture, 2021
Lipo-polysaccharides are important substances that consist of LipidA, Core and O-antigen, and are formed in several metabolic pathways that include nine enzymes encoded by special genes called Custer genes.
Raghad Gergees   +2 more
doaj   +1 more source

Antigenic Components of Chemical Bivalent Cholera Vaccine, Methods of their Isolation and Control

open access: yesПроблемы особо опасных инфекций, 2022
The paper presents a review of the data on the methods of isolation and control of Vibrio cholerae antigens – cholerogen-anatoxin and O-antigens of Inaba and Ogawa – components of the oral bivalent chemical cholera vaccine produced by the RusRAPI ...
S. A. Vorob’eva   +5 more
doaj   +1 more source

Lipopolysaccharide: An indispensable source for potential targets and therapeutic design against Gram-negative bacteria

open access: yesJournal of Clinical and Scientific Research, 2021
Gram-negative bacteria show more drug-resistant than Gram-positive bacteria due to unique structural attribute and cause significant morbidity and mortality across the globe.
Chiranjeevi Pasala   +6 more
doaj   +1 more source

Unique or not unique? Comparative genetic analysis of bacterial O-antigens from the Oxalobacteraceae family

open access: yesВавиловский журнал генетики и селекции, 2023
Many plants and animals have symbiotic relationships with microorganisms, including bacteria. The interactions between bacteria and their hosts result in different outcomes for the host organism.
S. D. Afonnikova   +2 more
doaj   +1 more source

Citrobacter O-antigens: structure of the O-antigenic polysaccharide from Citrobacter sp. 396 [PDF]

open access: yesJournal of Bacteriology, 1978
The structure of the O-specific polysaccharide moiety of the lipopolysaccharide from Citrobacter 396 was elucidated by composition, methylation, and periodate oxidation studies. The repeating unit consists of four 2-linked mannoses and one 3-linked N-acetylglucosamine.
B, Jann, P, Prehm, K, Jann
openaire   +2 more sources

Mechanism of O-antigen distribution in lipopolysaccharide [PDF]

open access: yesJournal of Bacteriology, 1990
O-antigen units are nonuniformly distributed among lipid A-core molecules in lipopolysaccharide (LPS) from gram-negative bacteria, as revealed by polyacrylamide gel electrophoresis in sodium dodecyl sulfate; the actual distribution patterns are complex, multimodal, and strain specific.
R C, Goldman, F, Hunt
openaire   +2 more sources

Study of the Surface Antigenic Determinants of Vibrio cholerae Strains with Atypical Agglutinability Using the Panel of Monoclonal Antibodies

open access: yesПроблемы особо опасных инфекций, 2022
The aim of the work was to study surface antigenic determinants of V. cholerae R-variant strains using enzyme immunoassay and a panel of monoclonal antibodies (MAbs).Materials and methods. 60 strains of V.
V. V. Evdokimova   +6 more
doaj   +1 more source

Lipophilic O-antigens in Rhodospirillum tenue [PDF]

open access: yesJournal of Bacteriology, 1977
Lipopolysaccharides of eight wild-type strains of the phototrophic bacterium Rhodospirillum tenue have been analyzed. All of the lipopolysaccharides are highly lipophilic. The compositions of preparations obtained by the phenol-water or by the phenol-chloroform-petroleum ether procedure are very similar. The polysaccharide moiety, obtained by mild acid
J, Weckesser   +3 more
openaire   +2 more sources

Convenient synthesis of the pentasaccharide repeating unit corresponding to the cell wall O-antigen of Escherichia albertii O4

open access: yesBeilstein Journal of Organic Chemistry, 2020
A straightforward sequential synthetic strategy has been developed for the synthesis of a pentasaccharide repeating unit corresponding to the cell wall O-antigen of the Escherichia albertii O4 strain in very good yield with the desired configuration at ...
Tapasi Manna   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy