Evidence map›Paper›PMID 29851191›Full record

ArticleHuman mutation2018

Severe neurocognitive and growth disorders due to variation in THOC2, an essential component of nuclear mRNA export machinery.

Raman Kumar, Alison Gardner, Claire C Homan, Evelyn Douglas, Heather Mefford, Dagmar Wieczorek, Hermann-Josef Lüdecke, Zornitza Stark, Simon Sadedin, Broad CMG and 22 more

Open access · bronzeAbstract read
In one paragraph

Article in Human mutation, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
0.7field-weighted citation impact, top 30% 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

16 citing papers in PubMed, 23 citations in OpenAlex.

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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

32 authors at 17 institutions in 6 countries.

Raman KumarAdelaide Medical School and the Robinson Research Institute, The University of Adelaide, Adelaide, Australia.ORCID 0000-0001-7976-8386
Alison GardnerAdelaide Medical School and the Robinson Research Institute, The University of Adelaide, Adelaide, Australia.
Claire C HomanAdelaide Medical School and the Robinson Research Institute, The University of Adelaide, Adelaide, Australia.
Evelyn DouglasGenetics and Molecular Pathology, SA Pathology, Adelaide, Australia.
Heather MeffordDivision of Genetic Medicine, Department of Pediatrics, University of Washington & Seattle Children's Hospital, Seattle, Washington.
Dagmar WieczorekHeinrich-Heine-University, Medical Faculty, Institute of Human Genetics, Düsseldorf, Germany.
Hermann-Josef LüdeckeHeinrich-Heine-University, Medical Faculty, Institute of Human Genetics, Düsseldorf, Germany.
Zornitza StarkMurdoch Children's Research Institute, Melbourne, Australia.
Simon SadedinMurdoch Children's Research Institute, Melbourne, Australia.
Broad CMGBroad's Center for Mendelian Genomics, Cambridge, Massachusetts.
Catherine Bearce NowakThe Feingold Center for Children at the Department of Genetics and Genomics, Boston Children's Hospital, Boston, Massachusetts.
Jessica DouglasThe Feingold Center for Children at the Department of Genetics and Genomics, Boston Children's Hospital, Boston, Massachusetts.
Gretchen ParsonsSpectrum Health Medical Genetics, Grand Rapids, Michigan.
Paul MarkSpectrum Health Medical Genetics, Grand Rapids, Michigan.
Lourdes LoidiFundación Pública Galega de Medicina Xenómica, Santiago de Compostela, Spain.
Gail E HermanNationwide Children's Hospital and The Ohio State University, Columbus, Ohio.
Theresa Mihalic MosherNationwide Children's Hospital and The Ohio State University, Columbus, Ohio.
Meredith K GillespieChildren's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, Canada.
Lauren BradyDepartment of Pediatrics, McMaster University Medical Centre, Hamilton, Canada.
Mark TarnopolskyDepartment of Pediatrics, McMaster University Medical Centre, Hamilton, Canada.
Irene MadrigalBiochemistry and Molecular Genetics Department, Hospital Clínic, IDIBAPS, Barcelona, Spain.
Jesús EirisUnidad de Neurología Pediátrica, Departamento de Pediatría, Hospital Clínico Universitario de Santiago de Compostela, Santiago de Compostela, Spain.
Laura Domènech SalgadoCentre for Genomic Regulation (CRG), Universitat Pompeu Fabra and CIBERESP, Barcelona Institute for Science and Technology, Barcelona, Spain.
Raquel RabionetCentre for Genomic Regulation (CRG), Universitat Pompeu Fabra and CIBERESP, Barcelona Institute for Science and Technology, Barcelona, Spain.
Tim M StromInstitut für Humangenetik, Universitätsklinikum Essen, Universität Duisburg-Essen, Essen, Germany.
Naoko IshiharaDepartment of Pediatrics, Fujita Health University School of Medicine, Aichi, Japan.
Hidehito InagakiDivision of Molecular Genetics, Institute for Comprehensive Medical Science, Fujita Health University, Aichi, Japan.
Hiroki KurahashiDivision of Molecular Genetics, Institute for Comprehensive Medical Science, Fujita Health University, Aichi, Japan.
Tracy Dudding-BythGenetics of Learning Disability Service, Hunter Genetics, Waratah, NSW, Australia.ORCID 0000-0002-9551-1107
Elizabeth E PalmerGenetics of Learning Disability Service, Hunter Genetics, Waratah, NSW, Australia.ORCID 0000-0003-1844-215X
Michael FieldGenetics of Learning Disability Service, Hunter Genetics, Waratah, NSW, Australia.
Jozef GeczAdelaide Medical School and the Robinson Research Institute, The University of Adelaide, Adelaide, Australia.ORCID 0000-0002-7884-6861
Fujita Health University · JPNationwide Children's Hospital · USThe University of Adelaide · AUUniversitat Pompeu Fabra · ESBoston Children's Hospital · USBroad Institute · USEssen University Hospital · DEMcMaster University Medical Centre · CASpectrum Health · USUNSW Sydney · AUComplejo Hospitalario Universitario de Santiago · ESHunter Genetics · AUSeattle Children's Hospital · USSouth Australian Health and Medical Research Institute · AUSouth Australia Pathology · AUThe University of Melbourne · AUUniversity of Ottawa · CA

Funding

Joint Center for Mendelian GenomicsUM1HG008900 · NHGRI · BROAD INSTITUTE, INC. · PI O'DONNELL-LURIA, ANNE, REHM, HEIDI L · 2016 to 2020
$16.5M
A powerful web-based discovery platform for rare disease geneticsR01HG009141 · NHGRI · BROAD INSTITUTE, INC. · PI QUINLAN, AARON R, REHM, HEIDI L · 2017 to 2020
$2.9M
CIHRNHGRI NIH HHS R01 HG009141NHGRI NIH HHS UM1 HG008900
6 · The paper itself

Abstract

Highly conserved TREX-mediated mRNA export is emerging as a key pathway in neuronal development and differentiation. TREX subunit variants cause neurodevelopmental disorders (NDDs) by interfering with mRNA export from the cell nucleus to the cytoplasm. Previously we implicated four missense variants in the X-linked THOC2 gene in intellectual disability (ID). We now report an additional six affected individuals from five unrelated families with two de novo and three maternally inherited pathogenic or likely pathogenic variants in THOC2 extending the genotypic and phenotypic spectrum. These comprise three rare missense THOC2 variants that affect evolutionarily conserved amino acid residues and reduce protein stability and two with canonical splice-site THOC2 variants that result in C-terminally truncated THOC2 proteins. We present detailed clinical assessment and functional studies on a de novo variant in a female with an epileptic encephalopathy and discuss an additional four families with rare variants in THOC2 with supportive evidence for pathogenicity. Severe neurocognitive features, including movement and seizure disorders, were observed in this cohort. Taken together our data show that even subtle alterations to the canonical molecular pathways such as mRNA export, otherwise essential for cellular life, can be compatible with life, but lead to NDDs in humans.

Indexed as

ChildChild, PreschoolEpilepsyExonsFemaleGrowth DisordersHEK293 CellsHeLa CellsHumansIntellectual DisabilityMaleMutation, MissenseProtein IsoformsRNA-Binding ProteinsRNA, MessengerRNA TransportProtein IsoformsRNA-Binding ProteinsRNA, MessengerThoc2 protein, humanmRNA exportpartial loss-of-function variantsprotein stabilityTHOC2XLID

Identifiers

PMID29851191
PMCPMC6481655
OpenAlexW2805343326

What OpenQuestion holds

Textmetadata
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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.