Evidence map›Paper›PMID 23240624›Full record

ArticleMolecular microbiology2013

The Toxoplasma nuclear factor TgAP2XI-4 controls bradyzoite gene expression and cyst formation.

Robert Walker, Mathieu Gissot, Matthew M Croken, Ludovic Huot, David Hot, Kami Kim, Stanislas Tomavo

Abstract read
In one paragraph

Article in Molecular microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

59 citing papers in PubMed, 1 synthesis or guideline pooled it, 98 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. AP2XII-1 and AP2XI-2 Suppress Schizogony Gene Expression inInternational journal of molecular sciences · 2024
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. New Avenues to DesignFrontiers in immunology · 2022
    Article
  19. The determinants regulatingFrontiers in microbiology · 2022
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Robert WalkerCenter for Infection and Immunity of Lille, UMR CNRS 8204, INSERM U 1019, Institut Pasteur de Lille, Université Lille Nord de France, Lille, France.
Mathieu Gissot
Matthew M Croken
Ludovic Huot
David Hot
Kami Kim
Stanislas Tomavo
Institut Pasteur de Lille · FRAlbert Einstein College of Medicine · USInserm · FR

Funding

TRAINING PROGRAM IN CELLULAR &MOLEC. BIOLOGY &GENETICST32GM007491 · NIGMS · YESHIVA UNIVERSITY · PI QUERY, CHARLES C · 1985 to 2021
$17.0M
A Systems Biology Approach to the Model Apicomplexan Toxoplasma gondiiRC4AI092801 · NIAID · ALBERT EINSTEIN COLLEGE OF MEDICINE · PI KIM, KAMI, SULLIVAN, WILLIAM J · 2010 to 2010
$5.6M
Toxoplasma Epigenomics and Gene ExpressionR01AI087625 · NIAID · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI KIM, KAMI · 2010 to 2014
$3.5M
NIAID NIH HHS R01 AI087625NIAID NIH HHS RC4 AI092801NIGMS NIH HHS T32 GM007491
6 · The paper itself

Abstract

Toxoplasma gondii undergoes many phenotypic changes during its life cycle. The recent identification of AP2 transcription factors in T. gondii has provided a platform for studying the mechanisms controlling gene expression. In the present study, we report that a recombinant protein encompassing the TgAP2XI-4 AP2 domain was able to specifically bind to a DNA motif using gel retardation assays. TgAP2XI-4 protein is localized in the parasite nucleus throughout the tachyzoite life cycle in vitro, with peak expression occurring after cytokinesis. We found that the TgAP2XI-4 transcript level was higher in bradyzoite cysts isolated from brains of chronically infected mice than in the rapidly replicating tachyzoites. A knockout of the TgAP2XI-4 gene in both T. gondii virulent type I and avirulent type II strains reveals its role in modulating expression and promoter activity of genes involved in stage conversion of the rapidly replicating tachyzoites to the dormant cyst forming bradyzoites. Furthermore, mice infected with the type II KO mutants show a drastically reduced brain cyst burden. Thus, our results validate TgAP2XI-4 as a novel nuclear factor that regulates bradyzoite gene expression during parasite differentiation and cyst formation.

Indexed as

Gene Expression RegulationAnimalsBrainDisease Models, AnimalDNA, ProtozoanElectrophoretic Mobility Shift AssayGene Knockout TechniquesMiceProtein BindingSpores, ProtozoanToxoplasmaToxoplasmosis, AnimalTranscription FactorsVirulence FactorsDNA, ProtozoanTranscription FactorsVirulence Factors

Identifiers

PMID23240624
PMCPMC3556193
OpenAlexW2169395507

What OpenQuestion holds

Textmetadata
LicenceTDM
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.