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MetabolomicsSeed Metabolome Analysis of a Transgenic Rice Line Expressing Cholera Toxin B-subunit
Rice (Oryza sativa L.) is a candidate crop for production of plant-based vaccines by genetic engineering technologies. MucoRice-CTB has been developed as a rice-seed-based vaccine against cholera by transgenic expression of modified cholera toxin B-subunit (CTB) under the RNA interference (RNAi)-med...
2017-08-30 | MTBLS437 | MetaboLights
MetabolomicsPlasmid-encoded toxin defence mediates mutualistic microbial interactions

Gut environments harbour dense microbial ecosystems in which plasmids are widely distributed. Plasmids facilitate the exchange of genetic material among microorganisms while enabling the transfer of a diverse array of accessory functions. However, their precise impact on microbial community compo...

2023-08-10 | MTBLS7248 | MetaboLights
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
MetabolomicsBlocking Toxin function and Modulating Gut Microbiota: Caffeic Acid and its Derivatives as Potential Treatments for Clostridioides difficile Infections

Clostridioides difficile infection (CDI) is the leading cause of hospital-acquired diarrhea that seriously threaten public health. Disruption of normal gut microbiota by the use of broad-spectrum antimicrobial agents enables C. difficile to proliferate in the colon. The emergence and prevalence o...

2024-06-04 | MTBLS9938 | MetaboLights
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
TranscriptomicsReceptors are affected by selection with each Bacillus thuringiensis israelensis Cry toxin but not with the full Bti mixture in Aedes aegypti
Bacillus thuringiensis israelensis (Bti) toxins are increasingly used for mosquito control, but little is known about the precise mode of action of each of these toxins, and how they interact to kill mosquito larvae. By using RNA sequencing, we investigated change in gene transcription level and pol...
ORGANISM(S): Aedes aegypti 
2019-05-16 | E-MTAB-7970 | biostudies-arrayexpress
TranscriptomicsTotal and cholera toxin B-tetramer specific T cells from Peyer's patches and mesenteric lymph nodes
T cells were separately isolated from MLN and PP from two naive mice, and T cells binding to a cholera toxin B subunit specific MHC II tetramer from mice orally immunized with cholera toxin 7 days or boosted 5 days with a second dose of cholera toxin. Cells were purified using flow cytometric cell s...
ORGANISM(S): Mus musculus 
2022-06-22 | E-MTAB-11805 | biostudies-arrayexpress
TranscriptomicsInducible expression of HigB toxin in Mycobacterium tuberculosis results in growth inhibition, reduced abundance of a subset of mRNAs and cleavage of tmRNA
In this study RNA-seq analysis of M. tuberculosis H37Rv overexpressing HigB compared to the empty vector control strain has been performed in order to investigate the role of the HigB toxin
ORGANISM(S): Mycobacterium tuberculosis 
2013-09-16 | E-MTAB-1667 | 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
TranscriptomicsTranscription profiling of human HeLa cells treated with major listerial toxin listeriolysin
Upon infection, pathogens reprogram host gene expression. In eukaryotic cells, genetic reprogramming is induced by the concerted activation/repression of transcription factors and various histone modifications that control DNA accessibility in chromatin. We report here that the bacterial pathogen, ...
ORGANISM(S): Homo sapiens 
2008-04-01 | E-MEXP-1078 | biostudies-arrayexpress
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