Evidence map›Paper›PMID 26210357›Full record

ArticleBriefings in bioinformatics2016

Evaluation of somatic copy number estimation tools for whole-exome sequencing data.

Jae-Yong Nam, Nayoung K D Kim, Sang Cheol Kim, Je-Gun Joung, Ruibin Xi, Semin Lee, Peter J Park, Woong-Yang Park

Abstract read
In one paragraph

Article in Briefings in bioinformatics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
–field-weighted citation impact
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

26 citing papers in PubMed.

  1. Article
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  6. Review
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  11. Review
  12. Bioinformatics for precision oncology.Briefings in bioinformatics · 2019
    Review
  13. Article
  14. Article
  15. Informatics for cancer immunotherapy.Annals of oncology : official journal of the European Society for Medical Oncology · 2017
    Review
  16. Article
  17. Article
  18. 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

8 authors.

Jae-Yong Nam
Nayoung K D Kim
Sang Cheol Kim
Je-Gun Joung
Ruibin Xi
Semin Lee
Peter J Park
Woong-Yang Park

Funding

Linking sequence and copy number variation to eye diseases by regulatory genomicsR01EY024230 · NEI · HARVARD MEDICAL SCHOOL · PI PARK, PETER J · 2014 to 2016
$1.2M
NEI NIH HHS R01 EY024230
6 · The paper itself

Abstract

Whole-exome sequencing (WES) has become a standard method for detecting genetic variants in human diseases. Although the primary use of WES data has been the identification of single nucleotide variations and indels, these data also offer a possibility of detecting copy number variations (CNVs) at high resolution. However, WES data have uneven read coverage along the genome owing to the target capture step, and the development of a robust WES-based CNV tool is challenging. Here, we evaluate six WES somatic CNV detection tools: ADTEx, CONTRA, Control-FREEC, EXCAVATOR, ExomeCNV and Varscan2. Using WES data from 50 kidney chromophobe, 50 bladder urothelial carcinoma, and 50 stomach adenocarcinoma patients from The Cancer Genome Atlas, we compared the CNV calls from the six tools with a reference CNV set that was identified by both single nucleotide polymorphism array 6.0 and whole-genome sequencing data. We found that these algorithms gave highly variable results: visual inspection reveals significant differences between the WES-based segmentation profiles and the reference profile, as well as among the WES-based profiles. Using a 50% overlap criterion, 13-77% of WES CNV calls were covered by CNVs from the reference set, up to 21% of the copy gains were called as losses or vice versa, and dramatic differences in CNV sizes and CNV numbers were observed. Overall, ADTEx and EXCAVATOR had the best performance with relatively high precision and sensitivity. We suggest that the current algorithms for somatic CNV detection from WES data are limited in their performance and that more robust algorithms are needed.

Indexed as

SoftwareAlgorithmsChromosome MappingDNA Copy Number VariationsExomeHigh-Throughput Nucleotide SequencingHumansReproducibility of ResultsSensitivity and SpecificitySequence Analysis, DNACNV algorithmsCNV predictionsomatic alterationsthe cancer genome atlas

Identifiers

PMID26210357
PMCPMC6283367

What OpenQuestion holds

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Registered trials

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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.