Results 11 to 20 of about 32,826 (199)

New combination of methods for isolation and purification of pertussis toxin from the Bordetella pertussis culture [PDF]

open access: yesHemijska Industrija, 2011
In this paper a method for isolation and purification of the pertussis toxin from the cell culture of Bordetella pertussis was presented. Pertussis toxin production was enhanced with the optimization of the microbiological media and cultivation time ...
Pavlović Katarina B.   +1 more
doaj   +3 more sources

MODERNIZATION OF GENEOTIPING OF STRAINS B. PERTUSSIS

open access: yesДетские инфекции (Москва), 2015
The new rapid molecular genotyping method was developed for studying the structure of ptxP promoter of pertussis toxin. Method is based on PCR-RFLP analysis, which allows studying the specific restriction profiles of the B.
G. A. Ivashinnikova   +4 more
doaj   +4 more sources

Genetically detoxified pertussis toxin induces superior antigen specific CD4 T cell responses compared to chemically detoxified pertussis toxin

open access: yesHuman Vaccines & Immunotherapeutics, 2019
Pertussis is resurgent worldwide. Currently available acellular pertussis vaccines contain chemically detoxified pertussis toxin (PTc); a highly immunogenic genetically detoxified pertussis toxin (PTg) vaccine has been off the market for over a decade ...
Naveen Surendran, Michael Pichichero
doaj   +2 more sources

Bordetella pertussis Strains with Increased Toxin Production Associated with Pertussis Resurgence [PDF]

open access: yesEmerging Infectious Diseases, 2009
Before childhood vaccination was introduced in the 1940s, pertussis was a major cause of infant death worldwide. Widespread vaccination of children succeeded in reducing illness and death.
Frits R. Mooi   +10 more
doaj   +2 more sources

Promoter of the pertussis toxin operon and production of pertussis toxin [PDF]

open access: yesJournal of Bacteriology, 1987
Pertussis toxin (PT), the major virulence factor of Bordetella pertussis, is composed of five different subunits whose genes are organized as an operon. We report the mapping of the promoter region of the PT operon and show that this promoter is only weakly active in Escherichia coli. Bordetella parapertussis and Bordetella bronchiseptica, which do not
NICOSIA, Alfredo, R. RAPPUOLI
openaire   +4 more sources

The Chaperonin TRiC/CCT Inhibitor HSF1A Protects Cells from Intoxication with Pertussis Toxin [PDF]

open access: yesToxins
Pertussis toxin (PT) is a bacterial AB5-toxin produced by Bordetella pertussis and a major molecular determinant of pertussis, also known as whooping cough, a highly contagious respiratory disease.
Jinfang Jia   +4 more
doaj   +2 more sources

Mechanisms of Pertussis Toxin Action: ADP-Ribosylation and Its Role in Pertussis Pathogenesis [PDF]

open access: yesToxins
Pertussis toxin (PTx) is a major virulence factor of Bordetella pertussis and an AB5-type exotoxin that disrupts host signaling. Its enzymatic A subunit ADP-ribosylates the α-subunit of inhibitory G proteins (Gαi), preventing them from mediating receptor-
Qing Tang   +3 more
doaj   +2 more sources

Expression of Bordetella pertussis Antigens Fused to Different Vectors and Their Effectiveness as Vaccines

open access: yesVaccines, 2021
Pertussis is an acute respiratory tract infection caused by Bordetella pertussis. Even though its current vaccine coverage is relatively broad, they still have some shortcomings such as short protection time and might be incapable of blocking the spread ...
Han Xu   +10 more
doaj   +1 more source

Genetics of pertussis toxin [PDF]

open access: yesMolecular Microbiology, 1989
SummaryPertussis toxin (PT) is the major virulence factor of Bordetella pertussis. The cloning and nucleotide sequencing of the PT genes from B. pertussis, Bordetella parapertussis and Bordetella bronchiseptica has elucidated the evolution of the Bordetella species and allowed considerable advances towards the understanding of their gene expression and
R, Gross, B, Aricò, R, Rappuoli
openaire   +2 more sources

Bordetella Dermonecrotic Toxin Is a Neurotropic Virulence Factor That Uses CaV3.1 as the Cell Surface Receptor

open access: yesmBio, 2020
Dermonecrotic toxin (DNT) is one of the representative toxins produced by Bordetella pertussis, but its role in pertussis, B. pertussis infection, remains unknown.
Shihono Teruya   +13 more
doaj   +1 more source

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