Evidence map›Paper›PMID 8657563›Full record

ArticleNucleic acids research1996

Mutagenicity of a unique thymine-thymine dimer or thymine-thymine pyrimidine pyrimidone (6-4) photoproduct in mammalian cells.

A Gentil, F Le Page, A Margot, C W Lawrence, A Borden, A Sarasin

Open access · bronzeAbstract read
In one paragraph

Article in Nucleic acids research, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

19 citing papers in PubMed, 78 citations in OpenAlex.

  1. Article
  2. Transcription and DNA repair collide after UV exposure.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  3. Review
  4. Mechanisms of UV-induced mutations and skin cancer.Genome instability & disease · 2020
    Article
  5. Mechanisms of DNA damage, repair, and mutagenesis.Environmental and molecular mutagenesis · 2017
    Review
  6. Article
  7. Article
  8. Article
  9. The structure of an authentic spore photoproduct lesion in DNA suggests a basis for recognition.Acta crystallographica. Section D, Biological crystallography · 2014
    Article
  10. Genomic assay reveals tolerance of DNA damage by both translesion DNA synthesis and homology-dependent repair in mammalian cells.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  11. UV wavelength-dependent DNA damage and human non-melanoma and melanoma skin cancer.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2012
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
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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 1 institution in 1 country.

A GentilInstitut de Recherches sur le Cancer, CNRS, IFC 1, Laboratory of Molecular Genetics, Villejuif, France.
F Le Page
A Margot
C W Lawrence
A Borden
A Sarasin
Centre National de la Recherche Scientifique · FR

Funding

DNA SEQUENCING OF UV-INDUCED CHROMOSOMAL MUTATIONSR01GM032885 · NIGMS · UNIVERSITY OF ROCHESTER · PI LAWRENCE, CHRISTOPHER W · 1985 to 2003
$1.1M
NIGMS NIH HHS GM 32885
6 · The paper itself

Abstract

The mutagenic properties of UV-induced photoproducts, both the cis-syn thymine-thymine dimer (TT) and the thymine-thymine pyrimidine pyrimidone (6-4) photoproduct [T(6-4)T] were studied in mammalian cells using shuttle vectors. A shuttle vector able to replicate in both mammalian cells and bacteria was produced in its single-stranded DNA form. A unique photoproduct was inserted at a single restriction site and after recircularization of the single-stranded DNA vector, this latter was transfected into simian COS7 cells. After DNA replication the vector was extracted from cells and used to transform bacteria. Amplified DNA was finally analyzed without any selective screening, DNA from randomly picked bacterial colonies being directly sequenced. Our results show clearly that both lesions are mutagenic, but at different levels. Mutation frequencies of 2 and 60% respectively were observed with the TT dimer and the T(6-4)T. With the TT dimer the mutations were targeted on the 3'-T. With the T(6-4)T a large variety of mutations were observed. A majority of G-->T transversions were semi-targeted to the base before the 5'-T of the photoproduct. These kinds of mutations were not observed when the same plasmid was transfected directly into SOS-induced JM105 bacteria or when the T(6-4)T oligonucleotide inserted in a different plasmid was replicated in SOS-induced SMH10 Escherichia coil bacteria. These semi-targeted mutations are therefore the specific result of bypass of the T(6-4)T lesion in COS7 cells by one of the eukaryotic DNA polymerases.

Indexed as

MutagensAnimalsBase SequenceCell LineEscherichia coliGenetic VectorsHaplorhiniMolecular Sequence DataMutagenesisPhotochemistryPyrimidine DimersSaccharomyces cerevisiaeSOS Response, GeneticsTransfectionUltraviolet RaysMutagensPyrimidine Dimers

Identifiers

PMID8657563
PMCPMC145879
OpenAlexW2148060885

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.