نتایج جستجو برای: capsular polysaccharide

تعداد نتایج: 27454  

Journal: :Polish journal of microbiology 2007
Gierczyński Rafał

The capsular polysaccharide (CPS) plays important role in Klebsiella spp pathogenesis. Capsular types K1 and K2 of Klebsiella pneumoniae are considered most virulent for humans. The capsule biosynthesis region flanking genes galF and gnd from clinical isolates and reference strains of K. pneumoniae were screened for polymorphism. Nucleotide sequence analysis of galF and gnd revealed a high hete...

Journal: :Journal of bacteriology 1968
R G Doggett

The report by R. G. Doggett et al. (Texas Rept. Biol. Med. 20:508, 1962) represented the first observation that strains of Pseudomonas aeraginosa isolated from patients with cystic fibrosis (CF) are atypical in certain physical and biochemical properties. These mucoid strains produced an unusual capsular polysaccharide when contrasted to the slime envelope of matted or smooth strains of the mic...

Journal: :Carbohydrate research 2007
Guang Zhao Andrei V Perepelov Sof'ya N Senchenkova Alexander S Shashkov Lu Feng Xiaomin Li Yuriy A Knirel Lei Wang

O-polysaccharides were isolated from the lipopolysaccharides of Escherichia coli O40 and Shigella dysenteriae type 9 and studied by chemical analyses along with (1)H and (13)C NMR spectroscopy. The following new structure of the O-polysaccharide of E. coli O40 was established: -->2)-beta-D-Galp-(1-->4)-beta-D-Manp-(1-->4)-alpha-D-Galp-(1-->3)-beta-D-GlcpNAc-(1--> TheO-polysaccharide structure o...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Cui Hua Liu S Melanie Lee Jordan M Vanlare Dennis L Kasper Sarkis K Mazmanian

Microbes occupy countless ecological niches in nature. Sometimes these environments may be on or within another organism, as is the case in both microbial infections and symbiosis of mammals. Unlike pathogens that establish opportunistic infections, hundreds of human commensal bacterial species establish a lifelong cohabitation with their hosts. Although many virulence factors of infectious bac...

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