Results 11 to 20 of about 26,624 (220)

Modeling sRNA-Regulated Plasmid Maintenance. [PDF]

open access: yesPLoS ONE, 2017
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.
Chen Chris Gong, Stefan Klumpp
doaj   +4 more sources

An oxygen-sensitive toxin–antitoxin system [PDF]

open access: yesNature Communications, 2016
Classical toxin–antitoxin systems in bacteria are based on silencing of a toxin by an antitoxin that, when inactivated, releases the toxin, resulting in a change in metabolism. Here, the authors characterize an oxygen-sensitive toxin–antitoxin system and
Oriol Marimon   +13 more
doaj   +8 more sources

Structure, Evolution, and Functions of Bacterial Type III Toxin-Antitoxin Systems [PDF]

open access: yesToxins, 2016
Toxin-antitoxin (TA) systems are small genetic modules that encode a toxin (that targets an essential cellular process) and an antitoxin that neutralises or suppresses the deleterious effect of the toxin.
Nathalie Goeders   +4 more
doaj   +9 more sources

Toxin–Antitoxin Systems in Pathogenic Bacteria [PDF]

open access: yesToxins, 2021
Toxin–antitoxin (TA) systems, which are ubiquitously present in plasmids, bacterial and archaeal genomes, are classified as types I to VI, according to the nature of the antitoxin and to the mode of toxin inhibition [...]
Juan C. Alonso
doaj   +4 more sources

Chaperone addiction of toxin–antitoxin systems [PDF]

open access: yesNature Communications, 2016
Some bacterial toxin-antitoxin systems consist of a labile antitoxin that inhibits a toxin, and a chaperone that stabilizes the antitoxin. Here, Bordes et al.
Patricia Bordes   +8 more
doaj   +3 more sources

Toxin-Antitoxin Systems of Staphylococcus aureus [PDF]

open access: yesToxins, 2016
Toxin-antitoxin (TA) systems are small genetic elements found in the majority of prokaryotes. They encode toxin proteins that interfere with vital cellular functions and are counteracted by antitoxins.
Bertram, R, Schuster, CF
core   +9 more sources

Bistability in type I toxin-antitoxin systems may lead to stress-induced persister formation [PDF]

open access: yesnpj Systems Biology and Applications
Antibiotic persistence, characterized by a dormant subpopulation of bacterial cells that causes chronic and recurrent infections, remains poorly understood despite being recognized nearly a century ago. Toxin–antitoxin (TA) systems, which include a toxin
Sofija Markovic   +3 more
doaj   +2 more sources

Generation of a toxin/antitoxin-based counterselection marker for Chlamydia trachomatis [PDF]

open access: yesInfection and Immunity
Chlamydia trachomatis is the leading cause of bacterial sexually transmitted infection in the United States. The high rate of asymptomatic cases and absence of a vaccine often leave infections untreated, increasing the risk of serious complications in ...
Eleanor Steiner   +3 more
doaj   +2 more sources

Bioinformatic exploration reveals features of tenpIN family of type III toxin-antitoxin systems in bacteria and viruses [PDF]

open access: yesScientific Reports
Toxin-antitoxin (TA) systems in bacteria consist of two genes: one encoding a toxin that inhibits essential cellular processes and the other encoding an antitoxin that neutralizes the toxin under homeostatic conditions.
Kavyashree Nadig   +2 more
doaj   +2 more sources

The VapBC-4 Characterization Indicates It Is a Bona Fide Toxin-Antitoxin Module of Leptospira interrogans: Initial Evidence for a Role in Bacterial Adaptation [PDF]

open access: yesMicroorganisms
Toxin-antitoxin (TA) systems are one of the bacterial adaptation mechanisms to adverse conditions. Leptospira interrogans serovar Copenhageni contains nine putative TA systems.
Bruna Oliveira Pigatto Azevedo   +5 more
doaj   +2 more sources

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