Evidence map›Paper›PMID 22872635›Full record

ArticleThe Journal of biological chemistry2012

Replication fork stalling and checkpoint activation by a PKD1 locus mirror repeat polypurine-polypyrimidine (Pu-Py) tract.

Guoqi Liu, Sheré Myers, Xiaomi Chen, John J Bissler, Richard R Sinden, Michael Leffak

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
0.8field-weighted citation impact, top 29% 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

33 citing papers in PubMed, 46 citations in OpenAlex.

  1. Review
  2. Review
  3. Dynamic Assemblies in Genome Maintenance.Advances in experimental medicine and biology · 2026
    Review
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  9. HumanmicroPublication biology · 2024
    Article
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  13. Review
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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 at 3 institutions in 1 country.

Guoqi LiuDepartment of Biochemistry and Molecular Biology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio 45435, USA. Guoqi.Liu@yahoo.com
Sheré Myers
Xiaomi Chen
John J Bissler
Richard R Sinden
Michael Leffak
Wright State University · USCincinnati Children's Hospital Medical Center · USFlorida Institute of Technology · US

Funding

HUMAN C MYC GENE REPLICATION ORIGINR01GM053819 · NIGMS · WRIGHT STATE UNIVERSITY · PI LEFFAK, MICHAEL · 1996 to 2012
$3.3M
Second-site genetic modifiers of CTG/CAG microsatellite stabilityR01GM099874 · NIGMS · WRIGHT STATE UNIVERSITY · PI LEFFAK, MICHAEL · 2012 to 2015
$1.1M
NIDDK NIH HHS DK016458NIGMS NIH HHS GM53819NIGMS NIH HHS R01 GM053819NIGMS NIH HHS R01 GM099874
6 · The paper itself

Abstract

DNA sequences prone to forming noncanonical structures (hairpins, triplexes, G-quadruplexes) cause DNA replication fork stalling, activate DNA damage responses, and represent hotspots of genomic instability associated with human disease. The 88-bp asymmetric polypurine-polypyrimidine (Pu-Py) mirror repeat tract from the human polycystic kidney disease (PKD1) intron 21 forms non-B DNA secondary structures in vitro. We show that the PKD1 mirror repeat also causes orientation-dependent fork stalling during replication in vitro and in vivo. When integrated alongside the c-myc replicator at an ectopic chromosomal site in the HeLa genome, the Pu-Py mirror repeat tract elicits a polar replication fork barrier. Increased replication protein A (RPA), Rad9, and ataxia telangiectasia- and Rad3-related (ATR) checkpoint protein binding near the mirror repeat sequence suggests that the DNA damage response is activated upon replication fork stalling. Moreover, the proximal c-myc origin of replication was not required to cause orientation-dependent checkpoint activation. Cells expressing the replication fork barrier display constitutive Chk1 phosphorylation and continued growth, i.e. checkpoint adaptation. Excision of the Pu-Py mirror repeat tract abrogates the DNA damage response. Adaptation to Chk1 phosphorylation in cells expressing the replication fork barrier may allow the accumulation of mutations that would otherwise be remediated by the DNA damage response.

Indexed as

Chromatin ImmunoprecipitationCytosolDNADNA DamageDNA PrimersDNA ReplicationGenomic InstabilityHeLa CellsHumansIntronsNucleic Acid ConformationPhosphorylationProto-Oncogene Proteins c-mycPurinesPyrimidinesTRPP Cation ChannelsDNADNA PrimersProto-Oncogene Proteins c-mycPurinesPyrimidinesTRPP Cation Channels

Identifiers

PMID22872635
PMCPMC3460443
OpenAlexW2024594911

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.