Evidence map›Paper›PMID 28905880›Full record

ArticleEuropean journal of human genetics : EJHG2017

Mutations in RARS cause a hypomyelination disorder akin to Pelizaeus-Merzbacher disease.

Michael Nafisinia, Nara Sobreira, Lisa Riley, Wendy Gold, Birgit Uhlenberg, Claudia Weiß, Corinne Boehm, Kristina Prelog, Robert Ouvrier, John Christodoulou

Open access · bronzeAbstract readCase Reports
In one paragraph

Article in European journal of human genetics : EJHG, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

24 citing papers in PubMed, 38 citations in OpenAlex.

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  13. RNA Polymerases I and III in development and disease.Seminars in cell & developmental biology · 2023
    Review
  14. Four pedigrees with aminoacyl-tRNA synthetase abnormalities.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
    Article
  15. Article
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  19. RARS1-related hypomyelinating leukodystrophy: Expanding the spectrum.Annals of clinical and translational neurology · 2020
    Article
  20. Article
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

10 authors at 6 institutions in 3 countries.

Michael NafisiniaGenetic Metabolic Disorders Research Unit, Western Sydney Genetics Program, Sydney, NSW, Australia.
Nara SobreiraInstitute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Lisa RileyGenetic Metabolic Disorders Research Unit, Western Sydney Genetics Program, Sydney, NSW, Australia.
Wendy GoldGenetic Metabolic Disorders Research Unit, Western Sydney Genetics Program, Sydney, NSW, Australia.
Birgit UhlenbergDepartment of Neuropediatrics, Charité Medical School, Berlin, Germany.
Claudia WeißDepartment of Neuropediatrics, Charité Medical School, Berlin, Germany.
Corinne BoehmInstitute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Kristina PrelogDepartment of Medical Imaging, The Children's Hospital at Westmead, Sydney, NSW, Australia.
Robert OuvrierDiscipline of Paediatrics &Child Health, Sydney Medical School, University of Sydney, Sydney, NSW, Australia.
John ChristodoulouDiscipline of Paediatrics &Child Health, Sydney Medical School, University of Sydney, Sydney, NSW, Australia.
Charité - Universitätsmedizin Berlin · DEUniversity of Sydney · AUChildren's Hospital at Westmead · AUJohns Hopkins Medicine · USJohns Hopkins University · USMurdoch Children's Research Institute · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pelizaeus-Merzbacher disease (PMD) is a rare Mendelian disorder characterised by central nervous system hypomyelination. PMD typically manifests in infancy or early childhood and is caused by mutations in proteolipid protein-1 (PLP1). However, variants in several other genes including gap junction protein gamma 2 (GJC2) can also cause a similar phenotype and are referred to PMD-like disease (PMLD). Whole-exome sequencing in two siblings presenting with clinical symptoms of PMD revealed a homozygous variant in the arginyl-tRNA synthetase (RARS) gene: NM_002887.3: c.[5A>G] p.(Asp2Gly). Subsequent screening of a PMD cohort without a genetic diagnosis identified an unrelated individual with novel compound heterozygous variants including a missense variant c.[1367C>T] p.(Ser456Leu) and a de novo deletion c.[1846_1847delTA] p.(Tyr616Leufs*6). Protein levels of RARS and the multi-tRNA synthetase complex into which it assembles were found to be significantly reduced by 80 and 90% by western blotting and Blue native-PAGE respectively using patient fibroblast extracts. As RARS is involved in protein synthesis whereby it attaches arginine to its cognate tRNA, patient cells were studied to determine their ability to proliferate with limiting amounts of this essential amino acid. Patient fibroblasts cultured in medium with limited arginine at 30 °C and 40 °C, showed a significant decrease in fibroblast proliferation (P<0.001) compared to control cells, suggestive of inefficiency of protein synthesis in the patient cells. Our functional studies provide further evidence that RARS is a PMD-causing gene.

Indexed as

Gene DeletionMutation, MissenseAdolescentArginine-tRNA LigaseCells, CulturedChildExomeFemaleFibroblastsHeterozygoteHomozygoteHumansMalePelizaeus-Merzbacher DiseaseArginine-tRNA Ligase

Identifiers

PMID28905880
PMCPMC5602020
OpenAlexW2740838434

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.