Results 31 to 40 of about 595,436 (374)

Toxin-mediated competition in weakly motile bacteria [PDF]

open access: yes2019, J. Theor. Biol. 480 , 205-217, 2019
Many bacterial species produce toxins that inhibit their competitors. We model this phenomenon by extending classic two-species Lotka-Volterra competition in one spatial dimension to incorporate toxin production by one species. Considering solutions comprising two adjacent single-species colonies, we show how the toxin inhibits the susceptible species ...
arxiv   +1 more source

Using Multiscale Molecular Dynamics Simulations to Obtain Insights into Pore Forming Toxin Mechanisms [PDF]

open access: yesMethods in Enzymology (Chapter Sixteen), 2021, 2020
Pore forming toxins (PFTs) are virulent proteins released by several species, including many strains of bacteria, to attack and kill host cells. In this article, we focus on the utility of molecular dynamics (MD) simulations and the molecular insights gleaned from these techniques on the pore forming pathways of PFTs.
arxiv   +1 more source

Acknowledgement to Reviewers of Toxins in 2015

open access: yesToxins, 2016
The editors of Toxins would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2015. [...]
Toxins Editorial Office
doaj   +1 more source

Cleavage of proteoglycans, plasma proteins and the platelet-derived growth factor receptor in the hemorrhagic process induced by snake venom metalloproteinases

open access: yesScientific Reports, 2020
Envenoming by viperid snakes results in a complex pattern of tissue damage, including hemorrhage, which in severe cases may lead to permanent sequelae. Snake venom metalloproteinases (SVMPs) are main players in this pathogenesis, acting synergistically ...
Amanda F. Asega   +7 more
doaj   +1 more source

Staphylococcus aureus Secreted Toxins and Extracellular Enzymes

open access: yesMicrobiology spectrum, 2019
Staphylococcus aureus is a formidable pathogen capable of causing infections in different sites of the body in a variety of vertebrate animals, including humans and livestock. A major contribution to the success of S. aureus as a pathogen is the plethora
K. Tam, V. Torres
semanticscholar   +1 more source

Simultaneous Detection and Quantification of Aflatoxin M1, Eight Microcystin Congeners and Nodularin in Dairy Milk by LC-MS/MS

open access: yesChemosensors, 2023
Dairy milk holds a prominent position as a widely consumed food, particularly among infants and children. However, it is crucial to address the presence of multiple natural toxic compounds that may co-occur in dairy milk to ensure its safety prior to ...
Camille Van Camp   +3 more
doaj   +1 more source

Toxins and venoms [PDF]

open access: yesCurrent Biology, 2009
The compounds that we recognize as toxins and venoms span an enormous diversity of pharmacological and ecological functions. The selection pressures driving the modification of venoms and toxins are fundamentally different from those of other proteins, and result in somewhat different evolutionary dynamics.
openaire   +3 more sources

Differentiation, Quantification and Identification of Abrin and Abrus precatorius Agglutinin

open access: yesToxins, 2021
Abrin, the toxic lectin from the rosary pea plant Abrus precatorius, has gained considerable interest in the recent past due to its potential malevolent use.
Sylvia Worbs   +9 more
doaj   +1 more source

Cholera toxin [PDF]

open access: yesBioscience Reports, 1977
Summary1. Death in several infectious diseases is caused by protein toxins secreted by invading bacteria. Cholera toxin is a simple protein secreted by Vibrio cholerae colonizing the gut; it is responsible for the massive diarrhoea that is cholera.2. The primary action of cholera toxin is an activation of adenylate cyclase, an enzyme found on the inner
openaire   +3 more sources

Mass spectrometry‐based top‐down and bottom‐up approaches for proteomic analysis of the Moroccan Buthus occitanus scorpion venom

open access: yesFEBS Open Bio, 2021
Buthus occitanus (B. occitanus) is one of the most dangerous scorpions in the world. Despite the involvement of B. occitanus scorpion in severe cases of envenomation in Morocco, no study has focused yet on the proteomic composition of the Moroccan B ...
Khadija Daoudi   +8 more
doaj   +1 more source

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