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MetabolomicsWe characterize the anti-phage function of a type IV TA system, ShosTA toxin-antitoxin system provides phage defense via DNA damage and repair
Widespread in bacteria and archaea, Toxin-antitoxin (TA) systems have been recently demonstrated to function in phage defense. Here we characterize the anti-phage function of a type IV TA system, ShosTA. Using structural and biochemical approaches, we show that ShosT couples phosphoribosyltransferas...
2025-02-17 | MTBLS11212 | MetaboLights
TranscriptomicsE.coli MG1655M-NM-^T6/pCA24N-dinJ treated with erythromycin vs. MG1655M-NM-^T6/pCA24N
Antitoxins are becoming recognized as proteins that regulate more than their own synthesis; for example, we found previously that antitoxin MqsA represses the gene encoding the stationary phase sigma factor RpoS. Here, we investigated the physiological role of antitoxin DinJ of the DinJ/YafQ toxin/a...
ORGANISM(S): Escherichia coli 
2012-07-08 | E-GEOD-30692 | biostudies-arrayexpress
GenomicsGrowth control switch by a DNA damage-inducible toxin-antitoxin system in Caulobacter
Bacterial toxin-antitoxin systems (TASs) are thought to respond to various stresses, often inducing growth-arrested (persistent) sub-populations of cells whose housekeeping functions are inhibited. However, it is not always clear whether specific targets of orthologous RNAse toxins are responsible f...
ORGANISM(S): Caulobacter crescentus NA1000 
2016-02-17 | E-GEOD-76721 | biostudies-arrayexpress
ProteomicsStaphylococcus aureus toxin-antitoxin system
Type I toxin-antitoxin (TA) systems are widespread genetic modules in bacterial genomes. They express toxic peptides whose overexpression leads to growth arrest or cell death, whereas antitoxins regulate the expression of toxins, acting as labile antisense RNAs. The Staphylococcus aureus (S. aureus)...
ORGANISM(S): Staphylococcus aureus 
2021-07-05 | PXD023449 | Pride
S. aureus  toxin-antitoxin system  proteomics  cell death 
TranscriptomicsExpression profile for BW25113 M-NM-^TmqsRA with deoxycholate stress
MqsR/MqsA is a well-characterized toxin/antitoxin system with several regulatory roles. Deletion of mqsRA reduced growth with deoxycholate stress. Here we performed a microarray to determine the expression profile with and without mqsRA under deoxycholate stress to determine transcriptional regulat...
ORGANISM(S): Escherichia coli BW25113 
2015-01-09 | E-GEOD-59441 | biostudies-arrayexpress
TranscriptomicsToxin-antitoxin of Rickettsia determines fatal addiction of the host cells
Rickettsia spp. can cause mild to severe human disease. These intracellular bacteria are associated with arthropods, nematodes and trematodes, and usually, are efficiently transmitted transovarially to the progeny of the invertebrate host. We recently demonstrated foreign gene acquisition by lateral...
ORGANISM(S): Homo sapiens 
2012-05-23 | E-GEOD-22072 | biostudies-arrayexpress
ProteomicsHipBA toxin-antitoxin system Caulobacter crescentus.
Antibiotic persistence is a transient phenotypic state during which a bacterium can withstand otherwise lethal antibiotic exposure or environmental stresses. In Escherichia coli, persistence is promoted by the HipBA toxin-antitoxin system. The HipA toxin functions as a serine/threonine kinase that i...
ORGANISM(S): Caulobacter crescentus (strain NA1000 / CB15N) 
2020-02-06 | PXD015525 | Pride
Caulobacter crescentus Phosphoproteome 
ProteomicsProtecomics analysis of toxin-antitoxin system HigBA mutant in P.aeruginosa
Pseudomonas aeruginosa kill the host Drosophila melanogasger very rapidly due to bacteria fitness in vivo. However, mutant of antitoxin HigA has impaired virulence accompanying with loss of fitness. We suppose the free toxin HigB in higA mutant inhibits some proteins production as to be an RNase. To...
ORGANISM(S): Pseudomonas aeruginosa PAO1 
2025-09-21 | PXD060361 | Pride
Camp Vfr Pseudomonas aeruginosa Type iv pili Toxin-antitoxin higba 
TranscriptomicsM. smegmatis vapBC::aphA-3 M-NM-^TvapBC mutant (JR121) harboring tetracycline inducible vector pMind containing the vapBC operon (pJR230) and the pMind vector containing the vapC toxin gene (pJR29)
Transcriptional profiling of M. smegmatis JR121 expressing VapC and VapBC grown in flasks on Hartmans de Bont medium supplemented with 0.2% glycerol Comparing transcriptional response of strain JR121 to conditional expression of VapC toxin compared with the expression of VapBC complex. Biological re...
ORGANISM(S): Mycobacterium smegmatis 
2012-06-14 | E-GEOD-29631 | biostudies-arrayexpress
ProteomicsThe Escherichia coli RelB antitoxin C-terminus is essential for RelE toxin suppression and transcriptional repression.
Bacterial type II toxin-antitoxin (TA) systems exhibit high specificity within each pair to ensure precise recognition of the toxin by its cognate antitoxin to inhibit toxicity of the free toxin. Despite high structural similarity among some TAs, crosstalk between noncognate TA pairs is rare. To det...
ORGANISM(S): Escherichia coli 
2025-07-06 | PXD065338 | Pride
Relb E coli Antitoxin 
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