Results 31 to 40 of about 24,156 (244)

The Bacillus cereus spoIIS programmed cell death system

open access: yesFrontiers in Microbiology, 2015
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

The vapB-vapC operon of Acidovorax citrulli functions as a bona-fide toxin-antitoxin module

open access: yesFrontiers in Microbiology, 2016
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
doaj   +1 more source

A novel type I toxin-antitoxin system modulates persister cell formation in Staphylococcus aureus

open access: yesInternational Journal of Medical Microbiology, 2020
A plethora of toxin-antitoxin systems exist in bacteria and has multilateral roles in bacterial pathogenesis and virulence. Toxin-antitoxin systems have been involved in persister cell formation in Escherichia coli and Mycobacterium but have not been ...
Gul Habib, Jiade Zhu, Baolin Sun
doaj   +1 more source

TASmania: A bacterial Toxin-Antitoxin Systems database [PDF]

open access: yesPLOS Computational Biology, 2019
Bacterial Toxin-Antitoxin systems (TAS) are involved in key biological functions including plasmid maintenance, defense against phages, persistence and virulence. They are found in nearly all phyla and classified into 6 different types based on the mode of inactivation of the toxin, with the type II TAS being the best characterized so far.
Hatice Akarsu   +5 more
openaire   +3 more sources

Toxin-Antitoxin Systems as Phage Defense Elements

open access: yesAnnual Review of Microbiology, 2022
Toxin-antitoxin (TA) systems are ubiquitous genetic elements in bacteria that consist of a growth-inhibiting toxin and its cognate antitoxin. These systems are prevalent in bacterial chromosomes, plasmids, and phage genomes, but individual systems are not highly conserved, even among closely related strains. The biological functions of TA systems have
LeRoux, Michele, Laub, Michael T
openaire   +2 more sources

Mycobacterium tuberculosis Rv0229c Shows Ribonuclease Activity and Reveals Its Corresponding Role as Toxin VapC51

open access: yesAntibiotics, 2023
The VapBC system, which belongs to the type II toxin–antitoxin (TA) system, is the most abundant and widely studied system in Mycobacterium tuberculosis.
Sung-Min Kang
doaj   +1 more source

The bacterial antitoxin HipB establishes a ternary complex with operator DNA and phosphorylated toxin HipA to regulate bacterial persistence [PDF]

open access: yes, 2014
Nearly all bacteria exhibit a type of phenotypic growth described as persistence that is thought to underlie antibiotic tolerance and recalcitrant chronic infections.
Behiels, Ester   +6 more
core   +2 more sources

TasA-tasB, a new putative toxin-antitoxin (TA) system from Bacillus thuringiensis pGI1 plasmid is a widely distributed composite mazE-doc TA system

open access: yesBMC Genomics, 2006
Background Post-segregational killing systems are present in a large variety of microorganisms. When found on plasmids, they are described as addiction systems that act to maintain the plasmid during the partitioning of the cell.
Mahillon Jacques, Fico Sarah
doaj   +1 more source

The role of small proteins in Burkholderia cenocepacia J2315 biofilm formation, persistence and intracellular growth [PDF]

open access: yes, 2019
Burkholderia cenocepacia infections are difficult to treat due to resistance, biofilm formation and persistence. B. cenocepacia strain J2315 has a large multi-replicon genome (8.06 Mb) and the function of a large fraction of (conserved) hypothetical ...
Braeckmans, Kevin   +12 more
core   +1 more source

Functional Characterization of the mazEF Toxin-Antitoxin System in the Pathogenic Bacterium Agrobacterium tumefaciens

open access: yesMicroorganisms, 2021
Agrobacterium tumefaciens is a pathogen of various plants which transfers its own DNA (T-DNA) to the host plants. It is used for producing genetically modified plants with this ability.
Wonho Choi   +9 more
doaj   +1 more source

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