Results 61 to 70 of about 17,352,598 (197)
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
Type II toxin–antitoxin system in bacteria: activation, function, and mode of action
Biophysics Reports, 2020 The toxin–antitoxin (TA) system is composed of a stable toxin and an unstable antitoxin that neutralizes the toxin. Being perhaps the most studied among the different TA types, type II TA systems are widely distributed and often exist in multiple copies ...
Si-Ping Zhang +8 more
semanticscholar +1 more source
PLoS Genetics, 2012 Abortive infection, during which an infected bacterial cell commits altruistic suicide to destroy the replicating bacteriophage and protect the clonal population, can be mediated by toxin-antitoxin systems such as the Type III protein-RNA toxin-antitoxin
Tim R Blower +4 more
doaj +1 more source
PLoS Genetics, 2020 RHS elements are components of conserved toxin-delivery systems, wide-spread within the bacterial kingdom and some of the most positively selected genes known. However, very little is known about how Rhs toxins affect bacterial biology.
Magnus Stårsta +8 more
doaj +1 more source
Evaluating the Potential for Cross-Interactions of Antitoxins in Type II TA Systems
Toxins, 2020 The diversity of Type-II toxin–antitoxin (TA) systems in bacterial genomes requires tightly controlled interaction specificity to ensure protection of the cell, and potentially to limit cross-talk between toxin–antitoxin pairs of the same family of TA ...
Chih-Han Tu +3 more
doaj +1 more source
Transcriptional control of the bacterial toxin-antitoxin system TimP-TimR
, 2022 To survive in a constantly changing environment, bacteria need to adapt their lifestyle. They need mechanisms to regulate their growth rate, both in response to nutrient availability, but also to protect themselves against toxic compounds, including ...
Orrenius, Cecilia
core +3 more sources
Msphere, 2021 Toxin-antitoxin (TA) systems play vital roles in maintaining plasmids in bacteria. Plasmids with incompatibility group C are large plasmids that disseminate via conjugation and carry high-profile antibiotic resistance genes.
Qin Qi, M. Kamruzzaman, J. Iredell
semanticscholar +1 more source
AAU-Specific RNA Cleavage Mediated by MazF Toxin Endoribonuclease Conserved in Nitrosomonas europaea
Toxins, 2016 Nitrosomonas europaea carries numerous toxin-antitoxin systems. However, despite the abundant representation in its chromosome, studies have not surveyed the underlying molecular functions in detail, and their biological roles remain enigmatic.
Tatsuki Miyamoto +3 more
doaj +1 more source
Characterization of a Streptococcus mutans intergenic region containing a small toxic peptide and its cis-encoded antisense small RNA antitoxin. [PDF]
PLoS ONE, 2013 Toxin-antitoxin (TA) modules consist of a pair of genes that encode two components: a protein toxin and an antitoxin, which may be in the form of either a labile protein or an antisense small RNA. Here we describe, to the best of our knowledge, the first
Stephanie Koyanagi, Céline M Lévesque
doaj +1 more source
Stay or Go: Sulfolobales Biofilm Dispersal Is Dependent on a Bifunctional VapB Antitoxin
mBio, 2023 A type II VapB14 antitoxin regulates biofilm dispersal in the archaeal thermoacidophile Sulfolobus acidocaldarius through traditional toxin neutralization but also through noncanonical transcriptional regulation.
April M. Lewis +5 more
doaj +1 more source