Evidence map›Paper›PMID 17485671›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2007

Evidence for mutation showers.

Jicheng Wang, Kelly D Gonzalez, William A Scaringe, Kimberly Tsai, Ning Liu, Dongqing Gu, Wenyan Li, Kathleen A Hill, Steve S Sommer

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
4.2field-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

43 citing papers in PubMed, 75 citations in OpenAlex.

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  12. Clustered and genome-wide transient mutagenesis in human cancers: Hypermutation without permanent mutators or loss of fitness.BioEssays : news and reviews in molecular, cellular and developmental biology · 2014
    Article
  13. Do mutator mutations fuel tumorigenesis?Cancer metastasis reviews · 2013
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 3 countries.

Jicheng WangDepartment of Molecular Genetics and Bioinformatics Group, Department of Molecular Genetics, City of Hope National Medical Center, Duarte, CA 91010, USA.
Kelly D Gonzalez
William A Scaringe
Kimberly Tsai
Ning Liu
Dongqing Gu
Wenyan Li
Kathleen A Hill
Steve S Sommer
Laboratory of Molecular Genetics · PLCity Of Hope National Medical Center · US

Funding

Tissue-Specific Antioxidant AntimutagenesisR01AG019784 · NIA · CITY OF HOPE/BECKMAN RESEARCH INSTITUTE · PI SOMMER, STEVE SEEV · 2001 to 2004
$1.6M
NIA NIH HHS R01 AG019784NIA NIH HHS R01 AG 19784
6 · The paper itself

Abstract

Mutants in the Big Blue transgenic mouse system show spontaneous clustered multiple mutations with unexpectedly high frequency, consistent with chronocoordinate events. We tested the prediction that the multiple mutations seen within the lacI mutation target sometimes occur in the context of chronocoordinate multiple mutations spanning multiple kilobases (mutation showers). Additional sequencing of mutants was performed in regions immediately flanking the lacI region (total of 10.7 kb). Nineteen additional mutations were found outside the lacI region ("ectomutations") from 10 mutants containing two or more lacI mutations, whereas only one ectomutation was found in 130 mutants with a single mutation (P < 0.0001). The mutation showers had an average of approximately one mutation per 3 kb. Four mutants showed closely spaced double mutations in the new sequence, and analysis of the spacing between these mutations revealed significant clustering (P = 0.0098). To determine the extent of the mutation showers, regions (8.5 kb total) remote from the lacI region (approximately 16-17 kb away) were sequenced. Only two additional ectomutations were found in these remote regions, consistent with mutation showers that generally do not extend more than approximately 30 kb. We conclude that mutation showers exist and that they constitute at least 0.2% and possibly 1% or more of mutational events observed in this system. The existence of mutation showers has implications for oncogenesis and evolution, raising the possibilities of "cancer in an instant" and "introns as sponges to reduce the deleterious impact of mutation showers."

Indexed as

Models, GeneticAnimalsBacterial ProteinsBase PairingDNA, IntergenicEvolution, MolecularGene FrequencyGenetic VectorsIntronsLac RepressorsMaleMiceMice, Inbred C57BLMice, TransgenicMutagensMutationBacterial ProteinsDNA, IntergenicLac RepressorsMutagensRepressor Proteins

Identifiers

PMID17485671
PMCPMC1895962
OpenAlexW2029091203

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.