Non-coding region variants upstream of MEF2C cause severe developmental disorder through three distinct loss-of-function mechanisms
| العنوان: | Non-coding region variants upstream of MEF2C cause severe developmental disorder through three distinct loss-of-function mechanisms |
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| المؤلفون: | Wright, CF, Quaife, NM, Ramos-Hernández, L, Danecek, P, Ferla, MP, Samocha, KE, Kaplanis, J, Gardner, EJ, Eberhardt, RY, Chao, KR, Karczewski, KJ, Morales, J, Gallone, G, Balasubramanian, M, Banka, S, Gompertz, L, Kerr, B, Kirby, A, Lynch, SA, Morton, JEV, Pinz, H, Sansbury, FH, Stewart, H, Zuccarelli, BD, Consortium, Genomics England Research, Cook, SA, Taylor, JC, Juusola, J, Retterer, K, Firth, HV, Hurles, ME, Lara-Pezzi, E, Barton, PJR, Whiffin, N |
| المساهمون: | Leducq Foundation for Cardiovascular Research, Imperial College Healthcare NHS Trust- BRC Funding |
| المصدر: | Am J Hum Genet Genomics England Research Consortium 2021, ' Non-coding region variants upstream of MEF2C cause severe developmental disorder through three distinct loss-of-function mechanisms ', American Journal of Human Genetics, vol. 108, no. 6, pp. 1083-1094 . https://doi.org/10.1016/j.ajhg.2021.04.025Test |
| بيانات النشر: | Elsevier, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Untranslated region, medicine.medical_specialty, DNA Copy Number Variations, Developmental Disabilities, Biology, Article, Cohort Studies, 03 medical and health sciences, 0302 clinical medicine, Loss of Function Mutation, Exome Sequencing, Genetics, medicine, Coding region, Humans, Genetic Predisposition to Disease, Child, Exome, Gene, 11 Medical and Health Sciences, Genetics (clinical), Loss function, Exome sequencing, 030304 developmental biology, Genetics & Heredity, 0303 health sciences, MEF2 Transcription Factors, developmental disorders, clinical genetic testing, non-coding region variants, 5' UTR variants, 06 Biological Sciences, Genomics England Research Consortium, Medical genetics, Haploinsufficiency, 5' Untranslated Regions, 030217 neurology & neurosurgery |
| الوصف: | Clinical genetic testing of protein-coding regions identifies a likely causative variant in only around half of developmental disorder (DD) cases. The contribution of regulatory variation in non-coding regions to rare disease, including DD, remains very poorly understood. We screened 9,858 probands from the Deciphering Developmental Disorders (DDD) study for de novo mutations in the 5' untranslated regions (5' UTRs) of genes within which variants have previously been shown to cause DD through a dominant haploinsufficient mechanism. We identified four single-nucleotide variants and two copy-number variants upstream of MEF2C in a total of ten individual probands. We developed multiple bespoke and orthogonal experimental approaches to demonstrate that these variants cause DD through three distinct loss-of-function mechanisms, disrupting transcription, translation, and/or protein function. These non-coding region variants represent 23% of likely diagnoses identified in MEF2C in the DDD cohort, but these would all be missed in standard clinical genetics approaches. Nonetheless, these variants are readily detectable in exome sequence data, with 30.7% of 5' UTR bases across all genes well covered in the DDD dataset. Our analyses show that non-coding variants upstream of genes within which coding variants are known to cause DD are an important cause of severe disease and demonstrate that analyzing 5' UTRs can increase diagnostic yield. We also show how non-coding variants can help inform both the disease-causing mechanism underlying protein-coding variants and dosage tolerance of the gene. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 0002-9297 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5e16a87ad0288d35265ae7a6ad3db8bTest https://europepmc.org/articles/PMC8206381Test/ |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....b5e16a87ad0288d35265ae7a6ad3db8b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 00029297 |
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