Evidence map›Paper›PMID 12629043›Full record

ArticleGenes & development2003

Inactivation of Exonuclease 1 in mice results in DNA mismatch repair defects, increased cancer susceptibility, and male and female sterility.

Kaichun Wei, Alan B Clark, Edmund Wong, Michael F Kane, Dan J Mazur, Tchaiko Parris, Nadine K Kolas, Robert Russell, Harry Hou, Burkhard Kneitz and 5 more

Open access · diamondAbstract read
In one paragraph

Article in Genes & development, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 163 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
163citing papers in PubMed, 2 pooled it
–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

163 citing papers in PubMed, 2 syntheses or guidelines pooled it, 325 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Review
  5. Article
  6. Ufd2p promotes efficient crossover formation by destabilizing Top2p during meiosis.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  7. Review
  8. DNA mismatch repair mediated by Mlh1-Pms1 endonuclease-catalyzed mispair excision.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Hurdles of Sperm Success: Exploring the Role of DNases.International journal of molecular sciences · 2025
    Review
  13. Review
  14. Article
  15. Article
  16. Deciphering the multifaceted role ofFrontiers in immunology · 2025
    Article
  17. Review
  18. Article
  19. MRE11A: a novel negative regulator of human DNA mismatch repair.Cellular & molecular biology letters · 2024
    Article
  20. Review

103 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

15 authors at 4 institutions in 1 country.

Kaichun WeiDepartment of Cell Biology, Albert Einstein College of Medicine, Bronx, New York 10461, USA.
Alan B Clark
Edmund Wong
Michael F Kane
Dan J Mazur
Tchaiko Parris
Nadine K Kolas
Robert Russell
Harry Hou
Burkhard Kneitz
Guohze Yang
Thomas A Kunkel
Richard D Kolodner
Paula E Cohen
Winfried Edelmann
Department of Health and Human Services · USNational Institute of Environmental Health Sciences · USAlbert Einstein College of Medicine · USYeshiva University · US

Funding

WORD PROCESSORP30CA013330 · NCI · YESHIVA UNIVERSITY · PI THOMAS E ROHAN · 1985 to 2026
$111.2M
ENZYMOLOGY OF MISMATCH REPAIR IN YEASTR01GM050006 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Richard D Kolodner · 1994 to 2026
$10.5M
DNA MISMATCH REPAIR AND CANCER IN MURINE MODELSR01CA076329 · NCI · YESHIVA UNIVERSITY · PI EDELMANN, WINFRIED · 1998 to 2017
$6.9M
The Role of Late MMR Proteins in DNA Repair and CancerR01CA093484 · NCI · YESHIVA UNIVERSITY · PI EDELMANN, WINFRIED · 2002 to 2011
$3.7M
NCI NIH HHS CA13330NCI NIH HHS CA 76329NCI NIH HHS CA93484NCI NIH HHS P30 CA013330NCI NIH HHS R01 CA076329NCI NIH HHS R01 CA093484NIGMS NIH HHS GM50006NIGMS NIH HHS R01 GM050006
6 · The paper itself

Abstract

Exonuclease 1 (Exo1) is a 5'-3' exonuclease that interacts with MutS and MutL homologs and has been implicated in the excision step of DNA mismatch repair. To investigate the role of Exo1 in mammalian mismatch repair and assess its importance for tumorigenesis and meiosis, we generated an Exo1 mutant mouse line. Analysis of Exo1(-/-) cells for mismatch repair activity in vitro showed that Exo1 is required for the repair of base:base and single-base insertion/deletion mismatches in both 5' and 3' nick-directed repair. The repair defect in Exo1(-/-) cells also caused elevated microsatellite instability at a mononucleotide repeat marker and a significant increase in mutation rate at the Hprt locus. Exo1(-/-) animals displayed reduced survival and increased susceptibility to the development of lymphomas. In addition, Exo1(-/-) male and female mice were sterile because of a meiotic defect. Meiosis in Exo1(-/-) animals proceeded through prophase I; however, the chromosomes exhibited dynamic loss of chiasmata during metaphase I, resulting in meiotic failure and apoptosis. Our results show that mammalian Exo1 functions in mutation avoidance and is essential for male and female meiosis.

Indexed as

Genetic Predisposition to DiseaseAnimalsBase Pair MismatchBlastocystCell LineDNA RepairExodeoxyribonucleasesFemaleGene TargetingInfertilityMaleMeiosisMetaphaseMiceMicrosatellite RepeatsNeoplasmsexodeoxyribonuclease IExodeoxyribonucleases

Identifiers

PMID12629043
PMCPMC196005
OpenAlexW2122439785

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.