Published in
Cell Press, Neuron, 5(70), p. 863-885, 2011
DOI: 10.1016/j.neuron.2011.05.002
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Multiple Recurrent De Novo CNVs, Including Duplications of the 7q11.23 Williams Syndrome Region, Are Strongly Associated with Autism
,
A. Gulhan Ercan Sencicek,
A. Gulhan Ercan-Sencicek,
Vanessa Hus,
Rui Luo,
Michael T. Murtha,
Daniel Moreno-De-Luca,
Su H. Chu ,
Michael P. Moreau,
Abha R. Gupta,
Daniel Moreno De-Luca,
Susanne A. Thomson,
Christopher E. Mason,
Kaya Bilguvar,
Patricia B. S. Celestino Soper
and other authors.
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Abstract
Given prior evidence for the contribution of rare copy number variations (CNVs) to autism spectrum disorders (ASD), we studied these events in 4,457 individuals from 1,174 simplex families, composed of parents, a proband and, in most kindreds, an unaffected sibling. We find significant association of ASD with de novo duplications of 7q11.23, where the reciprocal deletion causes Williams-Beuren syndrome, featuring a highly social personality. We identify rare recurrent de novo CNVs at five additional regions including two novel ASD loci, 16p13.2 (including the genes USP7 and C16orf72) and Cadherin13, and implement a rigorous new approach to evaluating the statistical significance of these observations. Overall, we find large de novo CNVs carry substantial risk (OR=3.55; CI =2.16-7.46, p=6.9 × 10−6); estimate the presence of 130-234 distinct ASD-related CNV intervals across the genome; and, based on data from multiple studies, present compelling evidence for the association of rare de novo events at 7q11.23, 15q11.2-13.1, 16p11.2, and Neurexin1.