Targeted sequencing identifies 91 neurodevelopmental-disorder risk genes with autism and developmental-disability biases

  • Nat Genet. 2017 Apr;49(4):515-526. doi: 10.1038/ng.3792.
Holly A F Stessman  1 Bo Xiong  1  2 Bradley P Coe  1 Tianyun Wang  3 Kendra Hoekzema  1 Michaela Fenckova  4  5 Malin Kvarnung  6  7 Jennifer Gerdts  8 Sandy Trinh  8 Nele Cosemans  9 Laura Vives  1 Janice Lin  1 Tychele N Turner  1 Gijs Santen  10 Claudia Ruivenkamp  10 Marjolein Kriek  10 Arie van Haeringen  10 Emmelien Aten  10 Kathryn Friend  11  12 Jan Liebelt  13 Christopher Barnett  13 Eric Haan  11  13 Marie Shaw  11 Jozef Gecz  11  12  14 Britt-Marie Anderlid  6  7 Ann Nordgren  6  7 Anna Lindstrand  6  7 Charles Schwartz  15 R Frank Kooy  16 Geert Vandeweyer  16 Celine Helsmoortel  16 Corrado Romano  17 Antonino Alberti  17 Mirella Vinci  18 Emanuela Avola  17 Stefania Giusto  19 Eric Courchesne  20 Tiziano Pramparo  20 Karen Pierce  20 Srinivasa Nalabolu  20 David G Amaral  21 Ingrid E Scheffer  22  23  24 Martin B Delatycki  22  25  26 Paul J Lockhart  22  26 Fereydoun Hormozdiari  27 Benjamin Harich  4  5 Anna Castells-Nobau  4  5 Kun Xia  3 Hilde Peeters  9 Magnus Nordenskjöld  6  7 Annette Schenck  4  5 Raphael A Bernier  8 Evan E Eichler  1  28
Affiliations
  • 1. Department of Genome Sciences, University of Washington, Seattle, Washington, USA.
  • 2. Department of Forensic Medicine and Institute of Brain Research, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
  • 3. State Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, China.
  • 4. Department of Human Genetics, Radboud University Medical Center, Nijmegen, the Netherlands.
  • 5. Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, the Netherlands.
  • 6. Department of Molecular Medicine and Surgery, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden.
  • 7. Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden.
  • 8. Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, Washington, USA.
  • 9. Centre for Human Genetics, KU Leuven and Leuven Autism Research (LAuRes), Leuven, Belgium.
  • 10. Department of Clinical Genetics, Leiden University Medical Center (LUMC), Leiden, the Netherlands.
  • 11. School of Medicine and the Robinson Research Institute, the University of Adelaide at the Women's and Children's Hospital, Adelaide, South Australia, Australia.
  • 12. Genetics and Molecular Pathology, SA Pathology, Adelaide, South Australia, Australia.
  • 13. South Australian Clinical Genetics Service, SA Pathology (at the Women's and Children's Hospital), Adelaide, South Australia, Australia.
  • 14. South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia.
  • 15. Center for Molecular Studies, J.C. Self Research Institute of Human Genetics, Greenwood Genetic Center, Greenwood, South Carolina, USA.
  • 16. Department of Medical Genetics, University of Antwerp, Antwerp, Belgium.
  • 17. Unit of Pediatrics &Medical Genetics, IRCCS Associazione Oasi Maria Santissima, Troina, Italy.
  • 18. Laboratory of Medical Genetics, IRCCS Associazione Oasi Maria Santissima, Troina, Italy.
  • 19. Unit of Neurology, IRCCS Associazione Oasi Maria Santissima, Troina, Italy.
  • 20. Department of Neurosciences, UC San Diego Autism Center, School of Medicine, University of California San Diego, La Jolla, California, USA.
  • 21. MIND Institute and the University of California Davis School of Medicine, Sacramento, California, USA.
  • 22. Department of Paediatrics, University of Melbourne, Royal Children's Hospital, Melbourne, Victoria, Australia.
  • 23. Department of Medicine, University of Melbourne, Austin Health, Melbourne, Victoria, Australia.
  • 24. Florey Institute of Neuroscience and Mental Health, Parkville, Victoria, Australia.
  • 25. Victorian Clinical Genetics Services, Parkville, Victoria, Australia.
  • 26. Bruce Lefroy Centre for Genetic Health Research, Murdoch Children's Research Institute, Parkville, Victoria, Australia.
  • 27. Department of Biochemistry and Molecular Medicine, University of California, Davis, Davis, California, USA.
  • 28. Howard Hughes Medical Institute, Seattle, Washington, USA.
Abstract

Gene-disruptive mutations contribute to the biology of neurodevelopmental disorders (NDDs), but most of the related pathogenic genes are not known. We sequenced 208 candidate genes from >11,730 cases and >2,867 controls. We identified 91 genes, including 38 new NDD genes, with an excess of de novo mutations or private disruptive mutations in 5.7% of cases. Drosophila functional assays revealed a subset with increased involvement in NDDs. We identified 25 genes showing a bias for autism versus intellectual disability and highlighted a network associated with high-functioning autism (full-scale IQ >100). Clinical follow-up for NAA15, KMT5B, and ASH1L highlighted new syndromic and nonsyndromic forms of disease.