Results 51 to 60 of about 18,051 (202)

Structural insights into chaperone addiction of toxin-antitoxin systems

open access: yesNature Communications, 2019
SecB homologs can be associated with stress-responsive type II toxin–antitoxin (TA) systems and form tripartite toxin-antitoxin-chaperone systems (TAC).
Valérie Guillet   +12 more
doaj   +1 more source

Shaping Pulses to Control Bistable Monotone Systems Using Koopman Operator [PDF]

open access: yes, 2016
In this paper, we further develop a recently proposed control method to switch a bistable system between its steady states using temporal pulses. The motivation for using pulses comes from biomedical and biological applications (e.g.
Goncalves, Jorge   +2 more
core   +2 more sources

Characterization of HicAB toxin-antitoxin module of Sinorhizobium meliloti

open access: yesBMC Microbiology, 2019
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
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

A toxin-deformation dependent inhibition mechanism in the T7SS toxin-antitoxin system of Gram-positive bacteria

open access: yesNature Communications, 2022
Antimicrobial toxins are secreted by bacteria to kill rival species. Here the authors report the mechanism of inhibition of EsaD, a toxin secreted by some S.
Yongjin Wang   +17 more
doaj   +1 more source

Bacterial type I toxin-antitoxin systems [PDF]

open access: yesRNA Biology, 2012
Toxin-antitoxin (TA) loci encode two-component systems that consist of a stable "toxin" whose ectopic overexpression either kills cells or confers growth stasis, and an unstable "antitoxin". TA systems have been initially discovered on plasmids, where they confer stability of maintenance through post-segregational killing (PSK). Plasmid loss results in
openaire   +2 more sources

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

Bacterial toxin-antitoxin systems targeting translation [PDF]

open access: yesJournal of Applied Biomedicine, 2010
10 p.-2 fig. Toxin-antitoxin systems (TAS) emerged more than 25 years ago and have since developed as an important field in molecular microbiology. TAS are autoregulated operons coding a stable toxin and an unstable antitoxin found in the plasmids and chromosomes of Bacteria and Archaea.
Díaz-Orejas, Ramón   +7 more
openaire   +2 more sources

Molecular processes underlying synergistic linuron mineralization in a triple-species bacterial consortium biofilm revealed by differential transcriptomics [PDF]

open access: yes, 2018
The proteobacteria Variovorax sp. WDL1, Comamonas testosteroni WDL7, and Hyphomicrobium sulfonivorans WDL6 compose a triple-species consortium that synergistically degrades and grows on the phenylurea herbicide linuron.
Anders   +52 more
core   +2 more sources

Toxin-Antitoxin Systems and Persistence

open access: yes, 2019
Toxin-antitoxin (TA) systems are small genetic modules comprising a stable toxic protein and an antitoxin preventing the toxin activity. In type II TA systems, antitoxins are unstable proteins that are degraded by host ATP-dependent proteases. In steady-state conditions, the antitoxin forms a complex with the toxin in which the toxic activity is ...
Fraikin, Nathan   +2 more
openaire   +2 more sources

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