Evidence map›Paper›PMID 40255281›Full record

ArticleACS bio & med chem Au2025

Chromatin Immunoprecipitation Reveals p53 Binding to G-Quadruplex DNA Sequences in Myeloid Leukemia Cell Lines.

Libuše Kratochvilová, Alessandra Dinová, Natália Valková, Michaela Dobrovolná, Pedro A Sánchez-Murcia, Václav Brázda

Abstract read
In one paragraph

Article in ACS bio & med chem Au, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. 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

6 authors.

Libuše KratochvilováInstitute of Biophysics of the Czech Academy of Sciences, Královopolská 135, Brno 612 65, Czech Republic.
Alessandra DinováInstitute of Biophysics of the Czech Academy of Sciences, Královopolská 135, Brno 612 65, Czech Republic.
Natália ValkováInstitute of Biophysics of the Czech Academy of Sciences, Královopolská 135, Brno 612 65, Czech Republic.
Michaela DobrovolnáInstitute of Biophysics of the Czech Academy of Sciences, Královopolská 135, Brno 612 65, Czech Republic.
Pedro A Sánchez-MurciaLaboratory of Computer-Aided Molecular Design, Division of Medicinal Chemistry, Otto-Loewi Research Center, Neue Stiftingtalstr. 6/III, Graz A-8010, Austria.ORCID https://orcid.org/0000-0001-8415-870X
Václav BrázdaInstitute of Biophysics of the Czech Academy of Sciences, Královopolská 135, Brno 612 65, Czech Republic.ORCID https://orcid.org/0000-0003-2837-4226

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Clarifying functions of the p53 protein is a crucial aspect of cancer research. We analyzed the binding sites of p53 wild-type (WT) protein and its oncologically significant mutants and evaluated their transactivation properties using a functional yeast assay. Unlike the binding sites as determined in myeloid leukemia cell lines by chromatin immunoprecipitation of p53-R175H, p53-Y220C, p53-M237I, p53-R248Q, and p53-R273H mutants, the target sites of p53-WT and p53-R282W were significantly associated with putative G-quadruplex sequences (PQSs). Guanine-quadruplex (G-quadruplex or G4) formation in these sequences was evaluated by using a set of biophysical methods. G4s can modulate gene expression induced by p53. At low p53 expression level, PQS upstream of the p53-response element (RE) leads to greater gene expression induced by p53-R282W compared to that for the RE without PQS. Meanwhile, p53-WT protein expression is decreased by the PQS presence. At a high p53 expression level, the presence of PQS leads to a decreased expression of the reporter regardless of the distance and localization of the G4 from the RE.

Identifiers

PMID40255281
PMCPMC12006861

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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.