학술논문

Rare coding variation provides insight into the genetic architecture and phenotypic context of autism
Document Type
article
Source
Nature Genetics. 54(9)
Subject
Biological Sciences
Bioinformatics and Computational Biology
Genetics
Autism
Brain Disorders
Pediatric
Biotechnology
Intellectual and Developmental Disabilities (IDD)
Human Genome
Mental Health
Clinical Research
Aetiology
2.1 Biological and endogenous factors
Mental health
Autism Spectrum Disorder
Autistic Disorder
DNA Copy Number Variations
Genetic Predisposition to Disease
Humans
Mutation
Autism Sequencing Consortium
Broad Institute Center for Common Disease Genomics
iPSYCH-BROAD Consortium
Medical and Health Sciences
Developmental Biology
Agricultural biotechnology
Bioinformatics and computational biology
Language
Abstract
Some individuals with autism spectrum disorder (ASD) carry functional mutations rarely observed in the general population. We explored the genes disrupted by these variants from joint analysis of protein-truncating variants (PTVs), missense variants and copy number variants (CNVs) in a cohort of 63,237 individuals. We discovered 72 genes associated with ASD at false discovery rate (FDR) ≤ 0.001 (185 at FDR ≤ 0.05). De novo PTVs, damaging missense variants and CNVs represented 57.5%, 21.1% and 8.44% of association evidence, while CNVs conferred greatest relative risk. Meta-analysis with cohorts ascertained for developmental delay (DD) (n = 91,605) yielded 373 genes associated with ASD/DD at FDR ≤ 0.001 (664 at FDR ≤ 0.05), some of which differed in relative frequency of mutation between ASD and DD cohorts. The DD-associated genes were enriched in transcriptomes of progenitor and immature neuronal cells, whereas genes showing stronger evidence in ASD were more enriched in maturing neurons and overlapped with schizophrenia-associated genes, emphasizing that these neuropsychiatric disorders may share common pathways to risk.