Evidence map›Paper›PMID 34129815›Full record

ArticleAmerican journal of human genetics2021

Exome variant discrepancies due to reference-genome differences.

He Li, Moez Dawood, Michael M Khayat, Jesse R Farek, Shalini N Jhangiani, Ziad M Khan, Tadahiro Mitani, Zeynep Coban-Akdemir, James R Lupski, Eric Venner and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in American journal of human genetics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
8.1field-weighted citation impact, top 2% 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

46 citing papers in PubMed, 63 citations in OpenAlex.

  1. Article
  2. Atlas of glomerular disease-specific genetic effects on blood transcriptome.medRxiv : the preprint server for health sciences · 2026
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  20. Unraveling the genomic diversity and admixture history of captive tigers in the United States.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 3 institutions in 1 country.

He LiHuman Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA.
Moez DawoodHuman Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA; Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Medical Scientist Training Program, Baylor College of Medicine, Houston, TX 77030, USA.
Michael M KhayatHuman Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA.
Jesse R FarekHuman Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA.
Shalini N JhangianiHuman Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA.
Ziad M KhanHuman Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA.
Tadahiro MitaniDepartment of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA.
Zeynep Coban-AkdemirHuman Genetics Center, Department of Epidemiology, Human Genetics, and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA.
James R LupskiHuman Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA; Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Department of Pediatrics, Texas Children's Hospital, Houston, TX 77030, USA.
Eric VennerHuman Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA.
Jennifer E PoseyDepartment of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA.
Aniko SaboHuman Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA.
Richard A GibbsHuman Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA. Electronic address: agibbs@bcm.edu.
Baylor College of Medicine · USTexas Children's Hospital · USThe University of Texas Health Science Center at Houston · US

Funding

The Human Genome Sequencing CenterU54HG003273 · NHGRI · BAYLOR COLLEGE OF MEDICINE · PI GIBBS, RICHARD A · 2004 to 2015
$341.3M
Baylor-Johns Hopkins Center for Mendelian GeneticsUM1HG006542 · NHGRI · JOHNS HOPKINS UNIVERSITY · PI VALLE, DAVID · 2016 to 2020
$14.5M
STRUCTURAL VARIATION IN NEUROLOGICAL DISEASER35NS105078 · NINDS · BAYLOR COLLEGE OF MEDICINE · PI LUPSKI, JAMES R. · 2018 to 2025
$6.0M
Individual genomic analyses to discover the molecular basis and mechanisms contributing to adult-onset diseaseK08HG008986 · NHGRI · BAYLOR COLLEGE OF MEDICINE · PI POSEY, JENNIFER ELLEN · 2017 to 2021
$831k
NHGRI NIH HHS K08 HG008986NHGRI NIH HHS U54 HG003273NHGRI NIH HHS UM1 HG006542NINDS NIH HHS R35 NS105078
6 · The paper itself

Abstract

Despite release of the GRCh38 human reference genome more than seven years ago, GRCh37 remains more widely used by most research and clinical laboratories. To date, no study has quantified the impact of utilizing different reference assemblies for the identification of variants associated with rare and common diseases from large-scale exome-sequencing data. By calling variants on both the GRCh37 and GRCh38 references, we identified single-nucleotide variants (SNVs) and insertion-deletions (indels) in 1,572 exomes from participants with Mendelian diseases and their family members. We found that a total of 1.5% of SNVs and 2.0% of indels were discordant when different references were used. Notably, 76.6% of the discordant variants were clustered within discrete discordant reference patches (DISCREPs) comprising only 0.9% of loci targeted by exome sequencing. These DISCREPs were enriched for genomic elements including segmental duplications, fix patch sequences, and loci known to contain alternate haplotypes. We identified 206 genes significantly enriched for discordant variants, most of which were in DISCREPs and caused by multi-mapped reads on the reference assembly that lacked the variant call. Among these 206 genes, eight are implicated in known Mendelian diseases and 53 are associated with common phenotypes from genome-wide association studies. In addition, variant interpretations could also be influenced by the reference after lifting-over variant loci to another assembly. Overall, we identified genes and genomic loci affected by reference assembly choice, including genes associated with Mendelian disorders and complex human diseases that require careful evaluation in both research and clinical applications.

Indexed as

ExomeGenome, HumanPolymorphism, Single NucleotideCohort StudiesGenetic Diseases, InbornHumansReference Valuesclinical genome sequencingexome sequencingGRCh37GRCh38hg19Human Genome Reference

Identifiers

PMID34129815
PMCPMC8322936
OpenAlexW3166319232

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.