Results 41 to 50 of about 5,542 (153)

Cloning of the filamentous hemagglutinin of Bordetella pertussis and its expression in Escherichia coli [PDF]

open access: yesInfection and Immunity, 1987
Bordetella pertussis UT25 DNA was cloned into the kanamycin resistance gene of cosmid pCP13 to construct a genomic library in Escherichia coli LE392. One clone containing plasmid pDB441 expressed the filamentous hemagglutinin (FHA) as identified by protein immunoblots with the use of rabbit anti-B.
D R, Brown, C D, Parker
openaire   +2 more sources

Contribution of Bordetella bronchiseptica filamentous hemagglutinin and pertactin to respiratory disease in swine. [PDF]

open access: yesInfect Immun, 2009
ABSTRACTBordetella bronchisepticais pervasive in swine populations and plays multiple roles in respiratory disease. Most studies addressing virulence factors ofB. bronchisepticaare based on isolates derived from hosts other than pigs. Two well-studied virulence factors implicated in the adhesion process are filamentous hemagglutinin (FHA) and pertactin
Nicholson TL, Brockmeier SL, Loving CL.
europepmc   +4 more sources

Heparin-inhibitable lectin activity of the filamentous hemagglutinin adhesin of Bordetella pertussis [PDF]

open access: yesInfection and Immunity, 1994
Bordetella pertussis, the etiologic agent of whooping cough, produces an outer membrane-associated filamentous hemagglutinin (FHA) which is the major adhesin of this organism. FHA exhibits a lectin-like activity for heparin and dextran sulfate. By using in vitro adherence assays to cultured epithelial cells, the attachment of B.
F D, Menozzi   +7 more
openaire   +2 more sources

Influenza A virus surface proteins are organized to help penetrate host mucus

open access: yeseLife, 2019
Influenza A virus (IAV) enters cells by binding to sialic acid on the cell surface. To accomplish this while avoiding immobilization by sialic acid in host mucus, viruses rely on a balance between the receptor-binding protein hemagglutinin (HA) and the ...
Michael D Vahey, Daniel A Fletcher
doaj   +1 more source

New Data on Vaccine Antigen Deficient Bordetella pertussis Isolates

open access: yesVaccines, 2015
Evolution of Bordetella pertussis is driven by natural and vaccine pressures. Isolates circulating in regions with high vaccination coverage present multiple allelic and antigenic variations as compared to isolates collected before introduction of ...
ValĂ©rie Bouchez   +4 more
doaj   +1 more source

A filamentous hemagglutinin-like protein of Xanthomonas axonopodis pv. citri, the phytopathogen responsible for citrus canker, is involved in bacterial virulence. [PDF]

open access: yesPLoS ONE, 2009
Xanthomonas axonopodis pv. citri, the phytopathogen responsible for citrus canker has a number of protein secretion systems and among them, at least one type V protein secretion system belonging to the two-partner secretion pathway. This system is mainly
Natalia Gottig   +4 more
doaj   +1 more source

Inhibition of avian influenza virus H9N2 infection by antiviral hexapeptides that target viral attachment to epithelial cells

open access: yesVirus Research, 2022
The H9N2 subtype of influenza A virus circulates frequently among poultry in Asian and North African countries causing economic loss in the poultry sector. The antigenic variations of the H9N2 virus were at the origin of its genetic evolution through the
Marwa Arbi   +7 more
doaj   +1 more source

Adhesion and host cell modulation: critical pathogenicity determinants of Bartonella henselae

open access: yesParasites & Vectors, 2011
Bartonella henselae, the agent of cat scratch disease and the vasculoproliferative disorders bacillary angiomatosis and peliosis hepatis, contains to date two groups of described pathogenicity factors: adhesins and type IV secretion systems.
Kempf Volkhard AJ, Franz Bettina
doaj   +1 more source

Transposon mutagenesis of atypical enteroaggregative Escherichia coli reveals a hemagglutinin-associated protein that mediates cell adhesion and contributes to the Galleria mellonella virulence

open access: yesFrontiers in Cellular and Infection Microbiology, 2023
Twenty-two atypical enteroaggregative Escherichia coli isolates from a previous epidemiological study harboring EAEC virulence genes were examined for their adhesion properties.
Mariane V. Monfardini   +5 more
doaj   +1 more source

Filamentous hemagglutinin adhesin FhaB limits i A baumannii i biofilm formation

open access: yesFrontiers in Bioscience, 2017
Increased resistance and survival, as well as immune evasion, play a significant role in the pathogenicity of Acinetobacter baumannii. Here, we report on the adhesion of the bacterium to epithelial cells and formation of biofilm on abiotic surfaces. We identificed autotransporter (AT) genes that encode homologues (Fha-like) of the two-partner secretion
Shakiba, Darwish Alipour Astaneh   +2 more
openaire   +2 more sources

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