Conditional cooperativity of toxin - antitoxin regulation can mediate bistability between growth and dormancy. [PDF]
PLoS Computational Biology, 2013 Many toxin-antitoxin operons are regulated by the toxin/antitoxin ratio by mechanisms collectively coined "conditional cooperativity". Toxin and antitoxin form heteromers with different stoichiometric ratios, and the complex with the intermediate ratio ...
Ilaria Cataudella +3 more
doaj +1 more source
The mazEF toxin-antitoxin system as a novel antibacterial target in Acinetobacter baumannii [PDF]
, 2014 Although analysis of toxin-antitoxin (TA) systems can be instructive, to date, there is no information on the prevalence and identity of TA systems based on a large panel of Acinetobacter baumannii clinical isolates.
Ghafourian, S +6 more
core +5 more sources
Mechanisms for Differential Protein Production in Toxin–Antitoxin Systems
Toxins, 2017 Toxin–antitoxin (TA) systems are key regulators of bacterial persistence, a multidrug-tolerant state found in bacterial species that is a major contributing factor to the growing human health crisis of antibiotic resistance. Type II TA systems consist of
Heather S. Deter +3 more
doaj +1 more source
YoeB toxin is activated during thermal stress. [PDF]
, 2015 Type II toxin-antitoxin (TA) modules are thought to mediate stress-responses by temporarily suppressing protein synthesis while cells redirect transcription to adapt to environmental change.
Garza-Sánchez, Fernando +2 more
core +1 more source
TASmania: A bacterial Toxin-Antitoxin Systems database [PDF]
PLOS 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
Release of vasopressin from isolated permeabilized neurosecretory nerve terminals is blocked by the light chain of botulinum A toxin [PDF]
, 1990 The intracellular action on exocytosis of botulinim A toxin and constituent chains was studied using permeabilized isolated nerve endings from the rat neural lobe. The release of the neuropeptide vasopressin was measured by radioimmunoassay.
Dayanithi, G. +4 more
core +6 more sources
The role of small proteins in Burkholderia cenocepacia J2315 biofilm formation, persistence and intracellular growth [PDF]
, 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
Microbiology Spectrum, 2022 Toxin-antitoxin (TA) systems are genetic modules that consist of a stable protein-toxin and an unstable antitoxin that neutralizes the toxic effect. In type II TA systems, the antitoxin is a protein that inhibits the toxin by direct binding.
Esther Shmidov +7 more
doaj +1 more source
Type II Toxin-Antitoxin Systems in Escherichia coli. [PDF]
Infect Drug ResistThe toxin-antitoxin (TA) system is widespread in prokaryotes and archaea, comprising toxins and antitoxins that counterbalance each other. Based on the nature and mode of action of antitoxins, they are classified into eight groups (type I to VIII). Both the toxins and the antitoxins are proteins in type II TA systems, and the antitoxin gene is usually ...
Zhang H +7 more
europepmc +4 more sources
Escherichia coli EHEC Germany outbreak preliminary functional annotation using BG7 system [PDF]
, 2011 We have annotated the European outbreak E. coli EHEC genome sequenced by BGI (6-2-2011) and assembled with MIRA by Nick Loman (6-2-2011 ). Our system BG7, Bacterial Genome annotation of Era7 Bioinformatics, predicts ORFs and annotates them based on ...
Eduardo Pareja +4 more
core +2 more sources