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Prevalence and architecture of de novo mutations in developmental disorders.

Deciphering Developmental Disorders Study, (2017) Prevalence and architecture of de novo mutations in developmental disorders. Nature, 542 (7642). pp. 433-438. ISSN 1476-4687 https://doi.org/10.1038/nature21062
SGUL Authors: Mansour, Sahar Mansour, Sahar

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Abstract

The genomes of individuals with severe, undiagnosed developmental disorders are enriched in damaging de novo mutations (DNMs) in developmentally important genes. Here we have sequenced the exomes of 4,293 families containing individuals with developmental disorders, and meta-analysed these data with data from another 3,287 individuals with similar disorders. We show that the most important factors influencing the diagnostic yield of DNMs are the sex of the affected individual, the relatedness of their parents, whether close relatives are affected and the parental ages. We identified 94 genes enriched in damaging DNMs, including 14 that previously lacked compelling evidence of involvement in developmental disorders. We have also characterized the phenotypic diversity among these disorders. We estimate that 42% of our cohort carry pathogenic DNMs in coding sequences; approximately half of these DNMs disrupt gene function and the remainder result in altered protein function. We estimate that developmental disorders caused by DNMs have an average prevalence of 1 in 213 to 1 in 448 births, depending on parental age. Given current global demographics, this equates to almost 400,000 children born per year.

Item Type: Article
Additional Information: © 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.
Keywords: Adolescent, Adult, Autoantigens, CDC2 Protein Kinase, Casein Kinase II, Child, Cohort Studies, DEAD-box RNA Helicases, DNA-Binding Proteins, Developmental Disabilities, Exome, Female, Heredity, Histone-Lysine N-Methyltransferase, Homeodomain Proteins, Humans, Male, Mi-2 Nucleosome Remodeling and Deacetylase Complex, Middle Aged, Mutation, Myeloid-Lymphoid Leukemia Protein, Nerve Tissue Proteins, Parents, Phenotype, Prevalence, Protein Phosphatase 2C, Repressor Proteins, Sequence Analysis, DNA, Sex Characteristics, Transcription Factors, Young Adult, ras GTPase-Activating Proteins, General Science & Technology, MD Multidisciplinary
SGUL Research Institute / Research Centre: Academic Structure > Molecular and Clinical Sciences Research Institute (MCS)
Journal or Publication Title: Nature
ISSN: 1476-4687
Language: eng
Dates:
DateEvent
24 January 2017Published
15 December 2016Accepted
Publisher License: Publisher's own licence
Projects:
Project IDFunderFunder ID
G0800674Medical Research Councilhttp://dx.doi.org/10.13039/501100000265
MC_PC_U127561093Medical Research Councilhttp://dx.doi.org/10.13039/501100000265
MR/M014568/1Medical Research Councilhttp://dx.doi.org/10.13039/501100000265
WT098051Wellcome Trusthttp://dx.doi.org/10.13039/100004440
PubMed ID: 28135719
Web of Science ID: WOS:000395094100027
Go to PubMed abstract
URI: http://openaccess.sgul.ac.uk/id/eprint/109832
Publisher's version: https://doi.org/10.1038/nature21062

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