Results 41 to 50 of about 28,880 (211)
Type II Toxin-Antitoxin Systems: Evolution and Revolutions [PDF]
Journal of Bacteriology, 2020 Type II toxin-antitoxin (TA) systems are small genetic elements composed of a toxic protein and its cognate antitoxin protein, the latter counteracting the toxicity of the former. While TA systems were initially discovered on plasmids, functioning as addiction modules through a phenomenon called postsegregational killing, they were later shown to be ...
Nathan Fraikin +2 more
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Dynamics-Based Regulatory Switches of Type II Antitoxins: Insights into New Antimicrobial Discovery
Antibiotics, 2023 Type II toxin-antitoxin (TA) modules are prevalent in prokaryotes and are involved in cell maintenance and survival under harsh environmental conditions, including nutrient deficiency, antibiotic treatment, and human immune responses. Typically, the type
Ki-Young Lee, Bong-Jin Lee
doaj +1 more source
A new type V toxin-antitoxin system where mRNA for toxin GhoT is cleaved by antitoxin GhoS [PDF]
, 2012 International audienceAmong bacterial toxin-antitoxin systems, to date no antitoxin has been identified that functions by cleaving toxin mRNA. Here we show that YjdO (renamed GhoT) is a membrane lytic peptide that causes ghost cell formation (lysed cells
Wolfgang Peti +25 more
core +1 more source
Toxin–antitoxin systems: reversible toxicity
Current Opinion in Microbiology, 2017 Toxin-antitoxin (TA) systems encoded on the plasmids and chromosomes of bacteria are emerging as key players in stress adaptation. In particular, they have been implicated in the induction of persisters non-growing cells that can evade antibiotic exposure.
Hall, A, Gollan, B, Helaine, S
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Prevalence of Fst-like toxin–antitoxin systems [PDF]
Microbiology, 2010 Toxin–antitoxin (TA) systems are widespread in Gram-negative bacteria, and all systems identified to date encode a toxic protein and an unstable antitoxin, which may be in the form of either an antisense RNA (type I) or a second protein (type II). The enterococcal plasmid pAD1-encoded TA system (par), encoding the Fst toxin, was the first type I TA ...
Kwong, Stephen M. (R20881) +2 more
openaire +3 more sources
Frontiers in Microbiology, 2021 The extraordinary expansion of Toxin Antitoxin (TA) modules in the genome of Mycobacterium tuberculosis has received significant attention over the last few decades.
Arun Sharma +10 more
doaj +1 more source
Stress induces the transcription of toxin-antitoxin systems but does not activate toxin [PDF]
, 2021 Data corresponding to manuscript entitled "Stress induces the transcription of toxin-antitoxin systems but does not activate ...
LeRoux, M (via Mendeley Data)
core +1 more source
Toxin-Antitoxin Systems and Persistence
, 2019 Toxin-antitoxin (TA) systems are small genetic modules comprising a stable toxic protein and an antitoxin preventing the toxin activity. In type II TA systems, antitoxins are unstable proteins that are degraded by host ATP-dependent proteases. In steady-state conditions, the antitoxin forms a complex with the toxin in which the toxic activity is ...
Fraikin, Nathan +2 more
openaire +2 more sources
Charged Amino Acids Contribute to ZorO Toxicity
Toxins, 2022 Chromosomally encoded toxin-antitoxin systems have been increasingly identified and characterized across bacterial species over the past two decades. Overproduction of the toxin gene results in cell growth stasis or death for the producing cell, but co ...
Bikash Bogati +4 more
doaj +1 more source
de novo synthesis of a bacterial toxin/antitoxin system [PDF]
, 2014 The prevalence of toxin/antitoxin (TA) systems in almost all genomes suggests they evolve rapidly. Here we show that an antitoxin from a type V system (GhoS, an endoribonuclease specific for the mRNA of the toxin GhoT) can be converted into a novel toxin
Soo, Valerie WC +3 more
core +1 more source