Fimbria Pil
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Fímbrias Pil em Escherichia coli enteropatogênica atípica: Caracterização e investigação do papel de PilS e PilV na adesão bacteriana. / Type IV pilus in atypical enteropathogenic Escherichia coli: characterization and investigation of PilS and PilV in bacterial adhesion role.
Fímbrias do tipo IV estão associadas a diversos fenótipos em bactérias gram-negativas, e o presente estudo consistiu na caracterização da fímbria Pil e investigação de seu papel na adesão bacteriana de isolados de EPEC atípica. Por PCR e RT-PCR foram investigadas a presença e a funcionalidade do operon Pil e os resultados demonstraram que este es
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/06/2012
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2. Identification of a novel gene, pilZ, essential for type 4 fimbrial biogenesis in Pseudomonas aeruginosa.
The opportunistic pathogen Pseudomonas aeruginosa produces type 4 fimbriae which promote adhesion to epithelial cells and are associated with a form of surface translocation called twitching motility. We have used transposon mutagenesis to identify loci required for fimbrial assembly or function by screening for mutants that lack the spreading colony morphol
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3. Role of BfpF, a Member of the PilT Family of Putative Nucleotide-Binding Proteins, in Type IV Pilus Biogenesis and in Interactions between Enteropathogenic Escherichia coli and Host Cells
Adherence of enteropathogenic Escherichia coli (EPEC) to epithelial cells is dependent on a type IV fimbria, termed the bundle-forming pilus (BFP). A cluster of 14 genes is required for expression of BFP. The eighth gene in the cluster, bfpF, encodes a putative nucleotide-binding protein which resembles the PilT protein of Pseudomonas aeruginosa. It has been
American Society for Microbiology.
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4. A plasmid-encoded prepilin peptidase gene from enteropathogenic Escherichia coli.
Enteropathogenic Escherichia coli, a leading agent of infantile diarrhea worldwide, adheres to tissue culture cells in a pattern called "localized adherence." Localized adherence is associated with bundle-forming pili encoded by the plasmid bfpA gene, the product of which is homologous with the major structural subunit proteins of type IV fimbriae in other b
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5. Expression of type 1 fimbriae may be required for persistence of Escherichia coli in the catheterized urinary tract.
Long-term urinary catheterization results in polymicrobial bacteriuria and is complicated by fever, bacteremia, acute pyelonephritis, and death. Escherichia coli is a common urine isolate from catheterized patients and can persist for months. We hypothesized that fimbria-mediated adherence contributes to its persistence. For 1 year, urine specimens were coll
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6. Identification of two genes with prepilin-like leader sequences involved in type 4 fimbrial biogenesis in Pseudomonas aeruginosa.
Type 4 fimbriae are surface filaments produced by a range of bacterial pathogens for colonization of host epithelial surfaces. In Pseudomonas aeruginosa, they are involved in adhesion as well as in a form of surface translocation called twitching motility, and sensitivity to infection by fimbria-specific bacteriophage. Analysis of the 2.5-kb intergenic regio
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7. Receptor Structure for F1C Fimbriae of Uropathogenic Escherichia coli
F1C fimbriae are correlated with uropathogenic Escherichia coli strains. Although F1C fimbriae mediate binding to kidney tubular cells, their receptor is not known. In this paper, we demonstrate for the first time specific carbohydrate residues as receptor structure for F1C-fimbria-expressing E. coli. The binding of the F1C fimbriated recombinant E. coli str
American Society for Microbiology.