Evidence map›Paper›PMID 9139896›Full record

ArticleJournal of bacteriology1997

Mutagenic properties of the T-C cyclobutane dimer.

M J Horsfall, A Borden, C W Lawrence

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

12 citing papers in PubMed, 60 citations in OpenAlex.

  1. The Surprising Diversity of UV-Induced Mutations.Advanced genetics (Hoboken, N.J.) · 2024
    Article
  2. Mechanisms of UV-induced mutations and skin cancer.Genome instability & disease · 2020
    Article
  3. Article
  4. Article
  5. 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
  6. Article
  7. Article
  8. Article
  9. Article
  10. High-fidelity in vivo replication of DNA base shape mimics without Watson-Crick hydrogen bonds.Proceedings of the National Academy of Sciences of the United States of America · 2003
    Article
  11. Review
  12. Article
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

3 authors at 1 institution in 1 country.

M J HorsfallDepartment of Biophysics, University of Rochester School of Medicine and Dentistry, New York 14642, USA.
A Borden
C W Lawrence
University of Rochester · US

Funding

DNA SEQUENCING OF UV-INDUCED CHROMOSOMAL MUTATIONSR01GM032885 · NIGMS · UNIVERSITY OF ROCHESTER · PI LAWRENCE, CHRISTOPHER W · 1985 to 2003
$1.1M
NIGMS NIH HHS GM32885
6 · The paper itself

Abstract

G x C-->A x T transitions within T-C or C-C bipyrimidine sequences are by far the most frequent class of mutation induced by 254-nm UV irradiation in most genes and species investigated, but the reason for the high degree of mutability and specificity at these sites is uncertain. Some data implicate the deamination of cytosine to uracil as a possible cause, but other results appear to indicate that the rate of deamination is too low for this to be significant in Escherichia coli. If deamination is not the cause, the high degree of mutability must presumably reflect the inherent properties of T-C and C-C dimers. We investigated this question by transfecting excision-deficient and excision-proficient strains of E. coli with single-stranded vectors that carried a site-specific cis-syn T-C cyclobutane dimer and by analyzing the nucleotide sequences of replicated vector products. We found that replication past the T-C dimer, like replication past its T-T and U-U counterparts, is in fact >95% accurate and that the frequencies of bypass are also very similar for these photoproducts. Since the T-C dimer appears to be only weakly mutagenic, the high frequency of UV-induced mutations at T-C sites presumably depends on some other process, such as deamination, although the mechanism remains to be established.

Indexed as

CyclobutanesUltraviolet RaysBacteriophage M13Base CompositionBase SequenceEscherichia coliGenes, BacterialGenetic VectorsGuanineHumansMutagenesisOligodeoxyribonucleotidesPoint MutationCyclobutanesGuanineOligodeoxyribonucleotides

Identifiers

PMID9139896
PMCPMC179042
OpenAlexW2127941899

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.