Evidence map›Paper›PMID 8631315›Full record

ArticleThe EMBO journal1996

Repair-deficient 3-methyladenine DNA glycosylase homozygous mutant mouse cells have increased sensitivity to alkylation-induced chromosome damage and cell killing.

B P Engelward, A Dreslin, J Christensen, D Huszar, C Kurahara, L Samson

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
6.3field-weighted citation impact, top 3% 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

55 citing papers in PubMed, 186 citations in OpenAlex.

  1. DNA Alkylation Damage by Nitrosamines and Relevant DNA Repair Pathways.International journal of molecular sciences · 2023
    Review
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Base excision repair and cancer.Cancer letters · 2012
    Review
  17. Article
  18. Article
  19. A model for 3-methyladenine recognition by 3-methyladenine DNA glycosylase I (TAG) from Staphylococcus aureus.Acta crystallographica. Section F, Structural biology and crystallization communications · 2012
    Article
  20. Review
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 1 institution in 1 country.

B P EngelwardDepartment of Molecular and Cellular Toxicology, Harvard School of Public Health, Boston, Massachusetts 02115, USA.
A Dreslin
J Christensen
D Huszar
C Kurahara
L Samson
Harvard University · US

Funding

EUKARYTIC DNA ALKYLATION REPAIRR01CA055042 · NCI · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI SAMSON, LEONA D. · 1991 to 2010
$4.8M
STUDIES OF DNA REPAIR USING RHIZOBIUM MELILOTIP01ES003926 · NIEHS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI WALKER, GRAHAM C · 1985 to 1997
–
NCI NIH HHS CA 55042NCI NIH HHS R01 CA055042NIEHS NIH HHS P01-ES03926
6 · The paper itself

Abstract

In Escherichia coli, the repair of 3-methyladenine (3MeA) DNA lesions prevents alkylation-induced cell death because unrepaired 3MeA blocks DNA replication. Whether this lesion is cytotoxic to mammalian cells has been difficult to establish in the absence of 3MeA repair-deficient cell lines. We previously isolated and characterized a mouse 3MeA DNA glycosylase cDNA (Aag) that provides resistance to killing by alkylating agents in E. coli. To determine the in vivo role of Aag, we cloned a large fragment of the Aag gene and used it to create Aag-deficient mouse cells by targeted homologous recombination. Aag null cells have no detectable Aag transcripts or 3MeA DNA glycosylase activity. The loss of Aag renders cells significantly more sensitive to methyl methanesulfonate-induced chromosome damage, and to cell killing induced by two methylating agents, one of which produces almost exclusively 3MeAs. Aag null embryonic stem cells become sensitive to two cancer chemotherapeutic alkylating agents, namely 1,3-bis(2-chloroethyl)-1-nitrosourea and mitomycin C, indicating that Aag status is an important determinant of cellular resistance to these agents. We conclude that this mammalian 3MeA DNA glycosylase plays a pivotal role in preventing alkylation-induced chromosome damage and cytotoxicity.

Indexed as

DNA DamageDNA GlycosylasesAlkylating AgentsAnimalsCell DivisionCell SurvivalDNA RepairMiceMice, KnockoutMutagenesisN-Glycosyl HydrolasesSister Chromatid ExchangeUltraviolet Rays3-methyladenine-DNA glycosylaseAlkylating AgentsDNA GlycosylasesN-Glycosyl Hydrolases

Identifiers

PMID8631315
PMCPMC450292
OpenAlexW236769407

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.