نتایج جستجو برای: fimbriae

تعداد نتایج: 2266  

Journal: :Journal of clinical microbiology 2005
Lucia M Lopes Sandra H Fabbricotti Antonio J P Ferreira Maria A M F Kato Jane Michalski Isabel C A Scaletsky

One hundred twelve diffusely adherent Escherichia coli strains isolated from children in a case control study were evaluated for virulence-associated characteristics, serotyping, antibiotic resistance, and plasmid profiles. Half of the strains hybridized with the probes for icuA (aerobactin) and fimH (type 1 pili); daaE (F1845 fimbriae), afa (afimbrial Dr adhesin), agg-3A (aggregative adhesion ...

2015
Daniele Araujo Pereira Caio Abércioda Silva Mario Augusto Ono Odilon Vidotto Marilda Carlos Vidotto

Enteric disorders in pigs are related to the fimbriae F4 (K88), F5 (K99), F6 (987P), F41 and F18 of enterotoxigenic Escherichia coli (ETEC). Immunization of sows with adhesins is important to stimulate the production of antibodies and the consequent transfer of these to the piglets via colostrum to prevent diarrhea during the neonate period and after weaning. The objective of this study was to ...

Journal: :Journal of molecular biology 2001
A P White S K Collinson P A Banser D L Gibson M Paetzel N C Strynadka W W Kay

The agfBAC operon of Salmonella enteritidis encodes thin aggregative fimbriae, fibrous, polymeric structures primarily composed of AgfA fimbrins. Although uncharacterized, AgfB shows a 51 % overall amino acid sequence similarity to AgfA. Using AgfB epitope-specific antiserum, AgfB was detected as a minor component of whole, purified fimbriae. Like AgfA, AgfB was released from purified fimbriae ...

2010
Stéphanie Ramboarina James A. Garnett Meixian Zhou Yuebin Li Zhixiang Peng Jonathan D. Taylor Wei-chao Lee Andrew Bodey James W. Murray Yilmaz Alguel Julien Bergeron Benjamin Bardiaux Elizabeth Sawyer Rivka Isaacson Camille Tagliaferri Ernesto Cota Michael Nilges Peter Simpson Teresa Ruiz Hui Wu Stephen Matthews

The serine-rich repeat family of fimbriae play important roles in the pathogenesis of streptococci and staphylococci. Despite recent attention, their finer structural details and precise adhesion mechanisms have yet to be determined. Fap1 (Fimbriae-associated protein 1) is the major structural subunit of serine-rich repeat fimbriae from Streptococcus parasanguinis and plays an essential role in...

Journal: :FEMS Immunology & Medical Microbiology 2007

Journal: :Journal of medical microbiology 2005
Werner Bokranz Xiaoda Wang Helmut Tschäpe Ute Römling

Escherichia coli colonizes the gastrointestinal tract of humans; however, little is known about the features of commensal strains. This study investigated whether expression of the biofilm extracellular matrix components cellulose and curli fimbriae is found among commensal isolates. Fifty-two E. coli strains were isolated from faecal samples and, as a control, 24 strains from urinary tract inf...

Journal: :Infection and immunity 1994
T Ogawa S Hamada

Porphyromonas gingivalis 381 fimbriae, their synthetic peptide segments, and lipopolysaccharide (LPS) were examined for hemagglutinating and migration-stimulating activities. P. gingivalis 381 fimbriae clearly caused hemagglutination, and several oligopeptide segments such as FP381(61-80), FP381(171-185), and FP381(302-321), corresponding to the amino acid residue numbers based on the amino aci...

Journal: :Journal of immunology 2007
Min Wang Muhamad-Ali K Shakhatreh Deanna James Shuang Liang So-Ichiro Nishiyama Fuminobu Yoshimura Donald R Demuth George Hajishengallis

Porphyromonas gingivalis is an oral/systemic pathogen implicated in chronic conditions, although the mechanism(s) whereby it resists immune defenses and persists in the host is poorly understood. The virulence of this pathogen partially depends upon expression of fimbriae comprising polymerized fimbrillin (FimA) associated with quantitatively minor proteins (FimCDE). In this study, we show that...

Journal: :Infection and immunity 1991
M J Walker C A Guzmán M Rohde K N Timmis

Serotype-specific fimbriae of Bordetella pertussis are considered potential components of new-generation vaccines against whooping cough. Attempts to characterize fimbriae, and indeed other virulence determinants, produced by B. pertussis have been frustrated on one hand by low yields from B. pertussis itself and on the other by an inability to produce native recombinant products in Escherichia...

2016
Patrik Kloppsteck Michael Hall Yoshiaki Hasegawa Karina Persson

Gingivitis and periodontitis are chronic inflammatory diseases that can lead to tooth loss. One of the causes of these diseases is the Gram-negative Porphyromonas gingivalis. This periodontal pathogen is dependent on two fimbriae, FimA and Mfa1, for binding to dental biofilm, salivary proteins, and host cells. These fimbriae are composed of five proteins each, but the fimbriae assembly mechanis...

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