Evidence map›Paper›PMID 15282322›Full record

ArticleMolecular and cellular biology2004

Deletion of mouse rad9 causes abnormal cellular responses to DNA damage, genomic instability, and embryonic lethality.

Kevin M Hopkins, Wojtek Auerbach, Xiang Yuan Wang, M Prakash Hande, Haiying Hang, Debra J Wolgemuth, Alexandra L Joyner, Howard B Lieberman

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

70 citing papers in PubMed, 114 citations in OpenAlex.

  1. Parasitic castration by a viral protein tyrosine phosphatase targeting the host cell cycle checkpoint protein Rad9A.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  7. Hypermethylation ofEXCLI journal · 2022
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  11. Review
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  17. Review
  18. Article
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  20. Article

10 more citing papers are in PubMed but not listed here.

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

8 authors at 3 institutions in 2 countries.

Kevin M HopkinsCenter for Radiological Research, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA.
Wojtek Auerbach
Xiang Yuan Wang
M Prakash Hande
Haiying Hang
Debra J Wolgemuth
Alexandra L Joyner
Howard B Lieberman
Columbia University · USRoyal College of Physicians · GBHoward Hughes Medical Institute · US

Funding

Role of Cyclin A's in Mammalian MeiosisR01HD034915 · NICHD · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI WOLGEMUTH, DEBRA J. · 1997 to 2017
$4.9M
MECHANISMS OF RADIORESISTANCE AND CELL CYCLE PROGRESSIONR01GM052493 · NIGMS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI LIEBERMAN, HOWARD B · 1995 to 2006
$2.8M
Mrad9 Radioresistance GeneR01CA089816 · NCI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI LIEBERMAN, HOWARD B · 2001 to 2004
$1.2M
NCI NIH HHS CA89816NCI NIH HHS R01 CA089816NICHD NIH HHS HD34915NICHD NIH HHS R01 HD034915NIGMS NIH HHS GM52493NIGMS NIH HHS R01 GM052493
6 · The paper itself

Abstract

The fission yeast Schizosaccharomyces pombe rad9 gene promotes cell survival through activation of cell cycle checkpoints induced by DNA damage. Mouse embryonic stem cells with a targeted deletion of Mrad9, the mouse ortholog of this gene, were created to evaluate its function in mammals. Mrad9(-/-) cells demonstrated a marked increase in spontaneous chromosome aberrations and HPRT mutations, indicating a role in the maintenance of genomic integrity. These cells were also extremely sensitive to UV light, gamma rays, and hydroxyurea, and heterozygotes were somewhat sensitive to the last two agents relative to Mrad9(+/+) controls. Mrad9(-/-) cells could initiate but not maintain gamma-ray-induced G(2) delay and retained the ability to delay DNA synthesis rapidly after UV irradiation, suggesting that checkpoint abnormalities contribute little to the radiosensitivity observed. Ectopic expression of Mrad9 or human HRAD9 complemented Mrad9(-/-) cell defects, indicating that the gene has radioresponse and genomic maintenance functions that are evolutionarily conserved. Mrad9(+/-) mice were generated, but heterozygous intercrosses failed to yield Mrad9(-/-) pups, since embryos died at midgestation. Furthermore, Mrad9(-/-) mouse embryo fibroblasts were not viable. These investigations establish Mrad9 as a key mammalian genetic element of pathways that regulate the cellular response to DNA damage, maintenance of genomic integrity, and proper embryonic development.

Indexed as

DNA DamageGene DeletionAnimalsApoptosisCell CycleCell Cycle ProteinsCells, CulturedChromosome AberrationsEmbryo, MammalianGene Expression RegulationGenes, cdcGenomic InstabilityHumansHydroxyureaIn Situ Nick-End LabelingMiceCell Cycle ProteinsHydroxyureaNucleic Acid Synthesis Inhibitorsrad9 protein

Identifiers

PMID15282322
PMCPMC479733
OpenAlexW2084883784

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.