نتایج جستجو برای: capsular polysaccharide
تعداد نتایج: 27454 فیلتر نتایج به سال:
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...
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...
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...
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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