Results 11 to 20 of about 66,837 (297)

Inhibition of Cholera Toxin and Other AB Toxins by Polyphenolic Compounds.

open access: yesPLoS ONE, 2016
Cholera toxin (CT) is an AB-type protein toxin that contains a catalytic A1 subunit, an A2 linker, and a cell-binding B homopentamer. The CT holotoxin is released into the extracellular environment, but CTA1 attacks a target within the cytosol of a host ...
Patrick Cherubin   +13 more
doaj   +7 more sources

Staphylococcus aureus Biofilms Induce Macrophage Dysfunction Through Leukocidin AB and Alpha-Toxin [PDF]

open access: yesmBio, 2015
The macrophage response to planktonic Staphylococcus aureus involves the induction of proinflammatory microbicidal activity. However, S. aureus biofilms can interfere with these responses in part by polarizing macrophages toward an anti-inflammatory ...
Tyler D. Scherr   +8 more
doaj   +6 more sources

Toxin Instability and Its Role in Toxin Translocation from the Endoplasmic Reticulum to the Cytosol

open access: yesBiomolecules, 2013
AB toxins enter a host cell by receptor-mediated endocytosis. The catalytic A chain then crosses the endosome or endoplasmic reticulum (ER) membrane to reach its cytosolic target. Dissociation of the A chain from the cell-binding B chain occurs before or
Ken Teter
doaj   +2 more sources

AIP56, an AB toxin secreted by <i>Photobacterium damselae</i> subsp. <i>piscicida</i>, has tropism for myeloid cells. [PDF]

open access: yesFront Immunol
Abstract The AB-type toxin AIP56 is a key virulence factor of Photobacterium damselae subsp. piscicida ( Phdp ), inducing apoptosis in fish immune cells.
Freitas IL   +5 more
europepmc   +7 more sources

Pet, a Non-AB Toxin, Is Transported and Translocated into Epithelial Cells by a Retrograde Trafficking Pathway [PDF]

open access: yesInfection and Immunity, 2007
ABSTRACT The plasmid-encoded toxin (Pet) of enteroaggregative Escherichia coli is a 104-kDa autotransporter protein that exhibits proteolytic activity against the actin-binding protein α-fodrin. Intracellular cleavage of epithelial fodrin by Pet disrupts the actin cytoskeleton, causing both cytotoxic and ...
Navarro-García, Fernando   +4 more
openaire   +5 more sources

AB Toxins: A Paradigm Switch from Deadly to Desirable [PDF]

open access: yesToxins, 2010
To ensure their survival, a number of bacterial and plant species have evolved a common strategy to capture energy from other biological systems. Being imperfect pathogens, organisms synthesizing multi-subunit AB toxins are responsible for the mortality ...
Oludare Odumosu   +3 more
doaj   +3 more sources

Direct Detection of the Biological Toxin in Acidic Environment by Electrochemical Impedimetric Immunosensor

open access: yesSensors, 2010
This study describes the direct detection of the biological toxin (Ricin) in acidic environment without pH adjustment by hydrophobically modified electrochemical impedance immunosensor (EII). The nano-porous aluminum substrate for EII was hydrophobically
Changhoon Chai   +2 more
doaj   +2 more sources

Alpha-1 antitrypsin inhibits Clostridium botulinum C2 toxin, Corynebacterium diphtheriae diphtheria toxin and B. anthracis fusion toxin

open access: yesScientific Reports
The bacterium Clostridium botulinum, well-known for producing botulinum neurotoxins, which cause the severe paralytic illness known as botulism, produces C2 toxin, a binary AB-toxin with ADP-ribosyltranferase activity.
Stefanie Lietz   +3 more
doaj   +3 more sources

Modulation of Toxin-Antitoxin System Rnl AB Type II in Phage-Resistant Gammaproteobacteria Surviving Photodynamic Treatment

open access: yesJournal of Lasers in Medical Sciences, 2018
Type II toxin-antitoxin (TA) systems are the particular type of TA modules which take part in different kinds of cellular actions, such as biofilm formation, persistence, stress endurance, defense of the bacterial cell against multiple phage attacks, plasmid maintenance, and programmed cell death in favor of bacterial population.
Hosseini, Nava   +5 more
openaire   +4 more sources

Diphtheria and the AB Toxin Group

open access: yes, 2023
AB toxins have historically been associated with significant morbidity, mortality through infections such as botulinum, anthrax, cholera, and diphtheria. These AB toxin-mediated diseases remain prevalent in low and middle income countries, with intermittent outbreaks of Shiga toxin-producing Escherichia coli (STEC) or whooping cough by Bordetella ...
Billy Pembroke   +4 more
openaire   +1 more source

Home - About - Disclaimer - Privacy