Toxoplasma gondii
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA262179 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Developmental regulation of the intracellular parasite Toxoplasma gondii is an understudied topic despite being central for a bid to control its dissemination around the globe. Of particular neglect are the factors that contribute to its sexual development. While it has previously been shown that generalized transcriptional repression machinery plays an important role in silencing spurious gene expression of sexually-committed parasites, the specific factors that target the generalized machinery to genetic loci remains unexplored. Here, we uncover that a member of the AP2 transcription factor family, AP2XII-2, is targeted to genomic loci that are associated with sexually-committed parasites along with the generalized regulators of transcriptional silencing, HDAC3 and MORC. Despite widespread association with gene promoters, AP2XII-2 is required for silencing of relatively few genes. We place two genes associated with sexual development downstream of AP2XII-2 control, transcription factor AP2X-10 and the amino acid hydroxylase AAH1. Dissecting gene regulatory pathways of Toxoplasma sexual development will likely be essential for controlling Toxoplasma dissemination in the future.
2023-01-24 | GSE217220 | GEO
Project description:Mutant T. gondii parasites lacking the hexokinase gene were viable. We carried genome wide expression analysis to identify genes that are differentially expressed in the mutant parasite with reference to wild type parental line. For this microarray analysis, we used the Affymetrix Toxoplasma gondii Custom GeneChip (CDF: ToxoDB version 5); Further details for this array can be found in the GEO platform ID GPL10000
2017-08-11 | GSE102500 | GEO
Project description:The acute-to-chronic stage transition in Toxoplasma gondii involes a global restructuring of the parasite transcriptome and is induced under alkaline stress. We found that parasites lacking the RNA-binding protein BFD2 are unable to produce chronic forms, consistent with a block in this develomental program. To understand how BFD2 facilitates chronic-stage transcriptional reprogramming in T. gondii, we profiled the transcriptomes of both 'wildtype' and BFD2-knockout parasites under alkaline-stressed and standard culture conditions
2023-03-31 | GSE223869 | GEO
Project description:Developmental regulation of the intracellular parasite Toxoplasma gondii is an understudied topic despite being central for a bid to control its dissemination around the globe. Of particular neglect are the factors that contribute to its sexual development. While it has previously been shown that generalized transcriptional repression machinery plays an important role in silencing spurious gene expression of sexually-committed parasites, the specific factors that target the generalized machinery to genetic loci remains unexplored. Here, we uncover that a member of the AP2 transcription factor family, AP2XII-2, is targeted to genomic loci that are associated with sexually-committed parasites along with the generalized regulators of transcriptional silencing, HDAC3 and MORC. Despite widespread association with gene promoters, AP2XII-2 is required for silencing of relatively few genes. We place two genes associated with sexual development downstream of AP2XII-2 control, transcription factor AP2X-10 and the amino acid hydroxylase AAH1. Dissecting gene regulatory pathways of Toxoplasma sexual development will likely be essential for controlling Toxoplasma dissemination in the future.
2023-01-24 | GSE217226 | GEO
Project description:Recent advances in high throughput sequencing methodologies allow the opportunity to probe in depth the transcriptomes of organisms including N. caninum and Toxoplasma gondii. In this project, we are using Illumina sequencing technology to analyze the transcriptome (RNA-Seq) of experimentally accessible stages (e.g. tachyzoites at different times points) of T. gondii VEG strain. The aim is to make comparative transcriptional landscape maps of Neospora and Toxoplasma at different time points at different life cycle stages and compare levels of expression of orthologous genes in these two organisms.
2011-02-08 | E-MTAB-550 | biostudies-arrayexpress
Project description:This SuperSeries is composed of the following subset Series: GSE11437: Expression QTL mapping of Toxoplasma gondii genes, Bradyzoite array GSE11514: Expression QTL mapping of Toxoplasma gondii genes, Tachyzoite array Keywords: SuperSeries Refer to individual Series
2008-05-22 | E-GEOD-11515 | biostudies-arrayexpress
Project description:This study aims to investigate how the acetylation status of lysine 49 (K49) in eukaryotic translation initiation factor 5A (eIF5A) influences the ribosome translation landscape of Toxoplasma gondii. Using the ME49 strain as the genetic background, we performed ribosome profiling (Ribo-seq) on three distinct variants: wild-type parasites, an acetylation-mimic mutant (eIF5A-K49Q), and a deacetylation-mimic mutant (eIF5A-K49R). Parasites were cultured under either standard conditions (non-stressed tachyzoites) or alkaline stress conditions (pH 8.2 medium for 4 days) to induce in vitro bradyzoite differentiation. Three biological replicates were included for each group, resulting in a total of 18 samples. By sequencing ribosome-protected mRNA fragments, this dataset enables genome-wide characterization of ribosome occupancy and translational output, providing a valuable resource for understanding how eIF5A-K49 acetylation reshapes translational programs during developmental stage conversion in Toxoplasma gondii.
2026-08-26 | GSE343864 | GEO