Results 51 to 60 of about 28,880 (211)

Transcriptional control of the bacterial toxin-antitoxin system TimP-TimR [PDF]

open access: yes, 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   +2 more sources

The DarTG toxin-antitoxin system provides phage defense by ADP-ribosylating viral DNA [PDF]

open access: yes, 2023
Raw images for "The DarTG toxin-antitoxin system provides phage defense by ADP-ribosylating viral DNA"
LeRoux, M
core   +3 more sources

Expression, Purification, and Functional Analysis of Novel RelE Operon from X. nematophila

open access: yesThe Scientific World Journal, 2014
Bacterial toxin-antitoxin (TA) complexes induce programmed cell death and also function to relieve cell from stress by various response mechanisms. Escherichia coli RelB-RelE TA complex consists of a RelE toxin functionally counteracted by RelB antitoxin.
Jitendra Singh Rathore   +1 more
doaj   +1 more source

RHS-elements function as type II toxin-antitoxin modules that regulate intra-macrophage replication of Salmonella Typhimurium.

open access: yesPLoS 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

Viral evasion of a bacterial suicide system by RNA-based molecular mimicry enables infectious altruism.

open access: yesPLoS 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

Evaluating the Potential for Cross-Interactions of Antitoxins in Type II TA Systems

open access: yesToxins, 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

To be or not to be: regulation of restriction–modification systems and other toxin–antitoxin systems [PDF]

open access: yesNucleic Acids Research, 2013
One of the simplest classes of genes involved in programmed death is that containing the toxin-antitoxin (TA) systems of prokaryotes. These systems are composed of an intracellular toxin and an antitoxin that neutralizes its effect. These systems, now classified into five types, were initially discovered because some of them allow the stable ...
Iwona Mruk, Kobayashi, Ichizo
openaire   +2 more sources

AAU-Specific RNA Cleavage Mediated by MazF Toxin Endoribonuclease Conserved in Nitrosomonas europaea

open access: yesToxins, 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]

open access: yesPLoS 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

open access: yesmBio, 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

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