Results 51 to 60 of about 16,375 (172)

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

Toxin-Antitoxin Systems: Classification, Biological Function and Application in Biotechnology [PDF]

open access: yes, 2013
The toxin-antitoxin (TA) systems are systems in which an unstable antitoxin inhibits a stable toxin. This review aims to introduce the TA system and its biological application in bacteria. For this purpose, first we introduce a new classification for the
Sobhan Ghafourian   +3 more
core   +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

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

Toxin-antitoxin systems and its biotechnological applications [PDF]

open access: yes, 2014
Toxin-antitoxin (TA) systems are important genetic modules composed by two elements: a toxin, that is always a protein, and an antitoxin, that can be a RNA or a protein and neutralizes the toxic effect of toxin.
Cangussu, Alex Sânder Rodrigues   +5 more
core   +1 more source

Molecular and Structural Basis of Cross-Reactivity in M. tuberculosis Toxin–Antitoxin Systems

open access: yesToxins, 2020
Mycobacterium tuberculosis genome encodes over 80 toxin–antitoxin (TA) systems. While each toxin interacts with its cognate antitoxin, the abundance of TA systems presents an opportunity for potential non-cognate interactions. TA systems mediate manifold
Himani Tandon   +3 more
doaj   +1 more source

Bacterial retrons encode phage-sensing toxin/antitoxin systems [PDF]

open access: yes, 2022
Retrons are prokaryotic genetic systems containing reverse transcriptases (RTs) that produce multiple copies of small single-stranded DNA (msDNA). Despite our understanding of the complex msDNA biosynthesis, the physiological role of retrons has ...
Bomponis, Iakovos
core   +1 more source

Diverse LXG toxin and antitoxin systems specifically mediate intraspecies competition in Bacillus subtilis biofilms.

open access: yesPLoS Genetics, 2021
Biofilms are multispecies communities, in which bacteria constantly compete with one another for resources and niches. Bacteria produce many antibiotics and toxins for competition.
Kazuo Kobayashi
doaj   +1 more source

The Haemophilus influenzae HipBA toxin–antitoxin system adopts an unusual three-component regulatory mechanism

open access: yesIUCrJ, 2022
Type II toxin–antitoxin (TA) systems encode two proteins: a toxin that inhibits cell growth and an antitoxin that neutralizes the toxin by direct intermolecular protein–protein interactions.
Ji Sung Koo   +4 more
doaj   +1 more source

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

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