CHD3 helicase domain mutations cause a neurodevelopmental syndrome with macrocephaly and impaired speech and language
- Nat Commun. 2018 Nov 5;9(1):4619. doi: 10.1038/s41467-018-06014-6.
- 1. Department of Human Genetics, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands.
- 2. Language and Genetics Department, Max Planck Institute for Psycholinguistics, Nijmegen, 6500AH, The Netherlands.
- 3. Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, 6500HE, The Netherlands.
- 4. CHU Sainte-Justine Research Center, Montreal, QC H3T 1C5, Canada.
- 5. National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA.
- 6. Centre for Molecular and Biomolecular Informatics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands.
- 7. Division of Genetics and Genomics, Boston Children's Hospital, Boston, MA 02115, USA.
- 8. Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
- 9. Department of Medical Genetics, Massachusetts General Hospital, Boston, MA 02114, USA.
- 10. Department of Clinical Genetics and GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, 6202AZ, The Netherlands.
- 11. Nemours Childrens Clinic, Orlando, FL 32827, USA.
- 12. Division of Genetics and Genomic Medicine, Department of Pediatrics, Washington University School of Medicine, St. Louis, MO 63110, USA.
- 13. Valley Children's Hospital, Madera, CA 93636, USA.
- 14. British Columbia Children's Hospital Research Institute, Vancouver, BC V5Z 4H4, Canada.
- 15. Department of Medical Genetics, University of British Columbia, Vancouver, BC V6H 3N1, Canada.
- 16. Department of Medical Genetics and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada.
- 17. Department of Clinical Genetics, Royal Devon and Exeter NHS Foundation Trust (Heavitree), Exeter, EX2 5DW, UK.
- 18. Division of Genetics, Department of Medicine, University of Tennessee Medical Center, Knoxville, TN 37920, USA.
- 19. Greenwood Genetic Center, Greenwood, SC 29646, USA.
- 20. GRC ConCer-LD, Sorbonne Universités, UPMC Univ Paris ; Department of Medical Genetics and Centre de Référence Malformations et maladies congénitales du cervelet et déficiences intellectuelles de causes rares, Armand Trousseau Hospital, GHUEP, AP-HP, Paris, 75012, France.
- 21. AP-HP, Hôpital de la Pitié-Salpêtrière, Département de Génétique, Paris, 75013, France.
- 22. Groupe de Recherche Clinique (GRC) 'déficience intellectuelle et autisme' UPMC, Paris, 75005, France.
- 23. INSERM, U 1127, CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, 75013, Paris, France.
- 24. GRC ConCer-LD, Sorbonne Universités, UPMC Univ Paris 06; Department Child Neurology and Reference Center for Neuromuscular Diseases "Nord/Est/Ile-de-France", FILNEMUS, Armand Trousseau Hospital, GHUEP, AP-HP, Paris, 75012, France.
- 25. GRC ConCer-LD, Sorbonne Universités, UPMC Univ Paris 06; Department of Child Neurology and National Reference Center for Neurogenetic Disorders, Armand Trousseau Hospital, GHUEP, AP-HP, INSERM U1141, 75012, Paris, France.
- 26. Clinical Genetics Division, Virginia Commonwealth University Health System, Richmond, VA 23298, USA.
- 27. Clinical Genetics Department, University Medical Center Groningen, Groningen, 9700RB, The Netherlands.
- 28. Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 08826, Republic of Korea.
- 29. Department of Pediatrics, Seoul National University College of Medicine, Seoul National University Children's Hospital, Seoul, 08826, Republic of Korea.
- 30. Oxford University Hospitals NHS Foundation Trust, Oxford, OX3 7HE, UK.
- 31. GeneDx, Gaithersburg, MD 20877, USA.
- 32. Institute of Human Genetics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91054, Germany.
- 33. Northwell Health, Division of Medical Genetics and Genomics, Great Neck, NY 11021, USA.
- 34. Department of Genetics, University Medical Center Utrecht, Utrecht University, Utrecht, 3508AB, The Netherlands.
- 35. University Hospitals Bristol, Department of Clinical Genetics, St Michael's Hospital, Bristol, BS2 8EG, UK.
- 36. Department of Clinical Genetics, University Children's Hospital, Paracelsus Medical University, Salzburg, A-5020, Austria.
- 37. Department of Pediatrics, Salzburger Landeskliniken and Paracelsus Medical University, Salzburg, A-5020, Austria.
- 38. Institute of Human Genetics, Technische Universität München, Munich, 81675, Germany.
- 39. Institute of Human Genetics, Helmholtz Zentrum München, Neuherberg, 85764, Germany.
- 40. Communication Sciences and Disorders, Augustana College, Rock Island, IL 61201, USA.
- 41. Department of Neurology, Mayo Clinic, Rochester, MN 55905, USA.
- 42. Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, 20246, Germany.
- 43. Waseda University, Tokyo, 169-8050, Japan.
- 44. Equipe Génétique des Anomalies du Développement, Université de Bourgogne-Franche Comté, Dijon, 21070, France.
- 45. Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs, FHU TRANSLAD, Hôpital d'Enfants, CHU Dijon et Université de Bourgogne, Dijon, 21079, France.
- 46. Waisman Center, Phonology Project, Madison, WI 53705-2280, USA.
- 47. Language and Genetics Department, Max Planck Institute for Psycholinguistics, Nijmegen, 6500AH, The Netherlands. [email protected].
- 48. Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, 6500HE, The Netherlands. [email protected].
- 49. CHU Sainte-Justine Research Center, Montreal, QC H3T 1C5, Canada. [email protected].
- 50. Sainte-Justine Hospital, University of Montreal, Montreal, QC H3T 1C5, Canada. [email protected].
Chromatin remodeling is of crucial importance during brain development. Pathogenic alterations of several chromatin remodeling ATPases have been implicated in neurodevelopmental disorders. We describe an index case with a de novo missense mutation in CHD3, identified during whole genome Sequencing of a cohort of children with rare speech disorders. To gain a comprehensive view of features associated with disruption of this gene, we use a genotype-driven approach, collecting and characterizing 35 individuals with de novo CHD3 mutations and overlapping phenotypes. Most mutations cluster within the ATPase/helicase domain of the encoded protein. Modeling their impact on the three-dimensional structure demonstrates disturbance of critical binding and interaction motifs. Experimental assays with six of the identified mutations show that a subset directly affects ATPase activity, and all but one yield alterations in chromatin remodeling. We implicate de novo CHD3 mutations in a syndrome characterized by intellectual disability, macrocephaly, and impaired speech and language.