Results 11 to 20 of about 18,233,686 (171)
Toxin-antitoxin (TA) systems are broadly distributed modules whose biological roles remain mostly unknown. The mqsRA system is a noncanonical TA system in which the toxin and antitoxins genes are organized in operon but with the particularity that the ...
Nathan Fraikin +3 more
doaj +2 more sources
The vapB-vapC operon of Acidovorax citrulli functions as a bona-fide toxin-antitoxin module [PDF]
Toxin–antitoxin systems are commonly found on plasmids and chromosomes of bacteria and archaea. These systems appear as biscystronic genes encoding a stable toxin and a labile antitoxin, which protects the cells from the toxin’s activity. Under specific,
Reut eShavit +4 more
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Toxin-Antitoxin Systems as Multilevel Interaction Systems
Toxin-antitoxin (TA) systems are small genetic modules usually composed of a toxin and an antitoxin counteracting the activity of the toxic protein. These systems are widely spread in bacterial and archaeal genomes.
Nathalie Goeders, Laurence Van Melderen
doaj +2 more sources
Characterization of HicAB toxin-antitoxin module of Sinorhizobium meliloti
Background Toxin-antitoxin (TA) systems are little genetic units generally composed of two genes encoding antitoxin and toxin. These systems are known to be involved in many functions that can lead to growth arrest and cell death.
Manon Thomet +3 more
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Continuous Evolution System Based on Toxin-Antitoxin System Combined with Base Deaminase Accelerates the In Vivo Modification of Target Proteins. [PDF]
The promoted Escherichia coli‐assisted continuous evolution (PEACE) system operates through a stringent three step genetic circuit: target gene mutation via a deaminase–T7 RNA polymerase (T7 RNAP) fusion, coupling variant function to antitoxin expression, and growth based selection of surviving cells.
Zhang X +10 more
europepmc +2 more sources
Toxin-antitoxin cassettes identified by TA finder in investigated Salmonella strains with functional classification of candidate toxin and antitoxin proteins.
Taruna Anand (828898) +4 more
core +1 more source
The coevolution of toxin and antitoxin genes drives the dynamics of bacterial addiction complexes and intragenomic conflict [PDF]
Bacterial genomes commonly contain 'addiction' gene complexes that code for both a toxin and a corresponding antitoxin. As long as both genes are expressed, cells carrying the complex can remain healthy.
Rankin, Daniel J. +11 more
core +1 more source
Crystal Structure of the Escherichia coli Fic Toxin-Like Protein in Complex with Its Cognate Antitoxin [PDF]
FIC domain proteins mediate post-translational modifications of target proteins, which typically results in their inactivation. Depending on the conservation of crucial active site residues, the FIC fold serves as structural scaffold for various ...
Stanger, Frédéric V. +20 more
core +2 more sources
The Bacillus cereus spoIIS programmed cell death system
Programmed cell death in bacteria is generally associated with two¬ component toxin antitoxin systems. The SpoIIS toxin-antitoxin system, consisting of a membrane bound SpoIISA toxin and a small, cytosolic antitoxin SpoIISB, was originally identified in ...
Jana eMelnicakova +3 more
doaj +1 more source
An oxygen-sensitive toxin–antitoxin system
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 +1 more source

