Evidence map›Paper›PMID 25352541›Full record

ArticleG3 (Bethesda, Md.)2014

Characterization of the mutagenic spectrum of 4-nitroquinoline 1-oxide (4-NQO) in Aspergillus nidulans by whole genome sequencing.

Damien J Downes, Mark Chonofsky, Kaeling Tan, Brandon T Pfannenstiel, Samara L Reck-Peterson, Richard B Todd

Open access · goldAbstract read
In one paragraph

Article in G3 (Bethesda, Md.), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
5.1field-weighted citation impact, top 5% 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

21 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. Article
  3. [Dynamic Succession of Urokinase-Type Plasminogen Activator in an Oral Squamous Cell Carcinoma Model].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2025
    Article
  4. Review
  5. Review
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  7. A quantification method of somatic mutations in normal tissues and their accumulation in pediatric patients with chemotherapy.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  8. Article
  9. Proceedings of the National Academy of Sciences of the United States of America · 2021
    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 2 institutions in 2 countries.

Damien J DownesDepartment of Plant Pathology, Kansas State University, Manhattan, Kansas 66506.
Mark ChonofskyDepartment of Cell Biology, Harvard Medical School, Boston, Massachusetts 02115.
Kaeling TanDepartment of Cell Biology, Harvard Medical School, Boston, Massachusetts 02115 Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China.
Brandon T PfannenstielDepartment of Plant Pathology, Kansas State University, Manhattan, Kansas 66506.
Samara L Reck-PetersonDepartment of Cell Biology, Harvard Medical School, Boston, Massachusetts 02115.
Richard B ToddDepartment of Plant Pathology, Kansas State University, Manhattan, Kansas 66506 rbtodd@k-state.edu.
Harvard University · USKansas State University · US

Funding

Mentoring CoreP20GM103418 · NIGMS · UNIVERSITY OF KANSAS MEDICAL CENTER · PI Douglas E Wright · 2012 to 2026
$63.0M
Cellular Control of Microtubule-Based Transport: Unraveling its Molecular MechanDP2OD004268 · OD · HARVARD MEDICAL SCHOOL · PI RECK-PETERSON, SAMARA L · 2008 to 2008
$2.5M
NIGMS NIH HHS P20 GM103418NIGMS NIH HHS P20GM103418NIH HHS DP2 OD004268NIH HHS OD004268
6 · The paper itself

Abstract

4-Nitroquinoline 1-oxide (4-NQO) is a highly carcinogenic chemical that induces mutations in bacteria, fungi, and animals through the formation of bulky purine adducts. 4-NQO has been used as a mutagen for genetic screens and in both the study of DNA damage and DNA repair. In the model eukaryote Aspergillus nidulans, 4-NQO-based genetic screens have been used to study diverse processes, including gene regulation, mitosis, metabolism, organelle transport, and septation. Early work during the 1970s using bacterial and yeast mutation tester strains concluded that 4-NQO was a guanine-specific mutagen. However, these strains were limited in their ability to determine full mutagenic potential, as they could not identify mutations at multiple sites, unlinked suppressor mutations, or G:C to C:G transversions. We have now used a whole genome resequencing approach with mutant strains generated from two independent genetic screens to determine the full mutagenic spectrum of 4-NQO in A. nidulans. Analysis of 3994 mutations from 38 mutant strains reveals that 4-NQO induces substitutions in both guanine and adenine residues, although with a 19-fold preference for guanine. We found no association between mutation load and mutagen dose and observed no sequence bias in the residues flanking the mutated purine base. The mutations were distributed randomly throughout most of the genome. Our data provide new evidence that 4-NQO can potentially target all base pairs. Furthermore, we predict that current practices for 4-NQO-induced mutagenesis are sufficient to reach gene saturation for genetic screens with feasible identification of causative mutations via whole genome resequencing.

Indexed as

4-Nitroquinoline-1-oxideAdenineAspergillus nidulansDNA DamageGenome, FungalGuanineHigh-Throughput Nucleotide SequencingMutagenesisPhenotypePoint MutationSequence Analysis, DNA4-Nitroquinoline-1-oxideAdenineGuanine4-nitroquinoline 1-oxidechemical mutagenesisfilamentous fungigenetic screenwhole genome sequencing

Identifiers

PMID25352541
PMCPMC4267943
OpenAlexW2118906880

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.