Structure of the saxiphilin:saxitoxin (STX) complex reveals a convergent molecular recognition strategy for paralytic toxins. [PDF]
Dinoflagelates and cyanobacteria produce saxitoxin (STX), a lethal bis-guanidinium neurotoxin causing paralytic shellfish poisoning. A number of metazoans have soluble STX-binding proteins that may prevent STX intoxication.
Du Bois, J+4 more
core +2 more sources
Modeling sRNA-regulated Plasmid Maintenance [PDF]
We study a theoretical model for the toxin-antitoxin (hok/sok) mechanism for plasmid maintenance in bacteria. Toxin-antitoxin systems enforce the maintenance of a plasmid through post-segregational killing of cells that have lost the plasmid. Key to their function is the tight regulation of expression of a protein toxin by an sRNA antitoxin.
arxiv +1 more source
Environmental toxicity influences disease spread in consumer population [PDF]
The study of infectious disease has been of interest to ecologists since long. The initiation of epidemic and the long term disease dynamics are largely influenced by the nature of the underlying consumer (host)-resource dynamics. Ecological traits of such systems may be often modulated by toxins released in the environment due to ongoing anthropogenic
arxiv
Immunological Characterization and Neutralizing Ability of Monoclonal Antibodies Directed Against Botulinum Neurotoxin Type H. [PDF]
BackgroundOnly Clostridium botulinum strain IBCA10-7060 produces the recently described novel botulinum neurotoxin type H (BoNT/H). BoNT/H (N-terminal two-thirds most homologous to BoNT/F and C-terminal one-third most homologous to BoNT/A) requires ...
Arnon, Stephen S+5 more
core +1 more source
Outbreaks of Bacillus anthracis in the US and Europe over the past 10 years have emphasized the health threat this lethal bacteria poses even for developed parts of the world.
Peter Q. Eichacker+5 more
doaj +1 more source
A translational murine model of sub-lethal intoxication with Shiga toxin 2 reveals novel ultrastructural findings in the brain striatum. [PDF]
Infection by Shiga toxin-producing Escherichia coli causes hemorrhagic colitis, hemolytic uremic syndrome (HUS), acute renal failure, and also central nervous system complications in around 30% of the children affected. Besides, neurological deficits are
Carla Tironi-Farinati+5 more
doaj +1 more source
Proteolytic processing and activation of Clostridium perfringens epsilon toxin by caprine small intestinal contents. [PDF]
Epsilon toxin (ETX), a pore-forming toxin produced by type B and D strains of Clostridium perfringens, mediates severe enterotoxemia in livestock and possibly plays a role in human disease.
Freedman, John C+3 more
core +2 more sources
Autophagy in cancer and protein conformational disorders
Autophagy plays a crucial role in numerous biological processes, including protein and organelle quality control, development, immunity, and metabolism. Hence, dysregulation or mutations in autophagy‐related genes have been implicated in a wide range of human diseases.
Sergio Attanasio
wiley +1 more source
Rational Drug Designing Strategies and Inhibitor Optimization: Anthrax Lethal Toxin Factor [PDF]
Anthrax toxin protein protective antigen, edema factor and lethal factor are secreted by Bacillus anthracis bacteria causes several adverse effects on human as well as on ruminant animals and considered as serious biological weapons. Lethal toxin protein
Pawan Kumar Jayaswal+2 more
doaj
Anthrax Lethal Toxin-Induced Gene Expression Changes in Mouse Lung
A major virulence factor of Bacillus anthracis is the anthrax Lethal Toxin (LeTx), a bipartite toxin composed of Protective Antigen and Lethal Factor. Systemic administration of LeTx to laboratory animals leads to death associated with vascular leakage ...
A. Darise Farris+8 more
doaj +1 more source