Abstract:
: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.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Snijders Blok L,Rousseau J,Twist J,Ehresmann S,Takaku M,Venselaar H,Rodan LH,Nowak CB,Douglas J,Swoboda KJ,Steeves MA,Sahai I,Stumpel CTRM,Stegmann APA,Wheeler P,Willing M,Fiala E,Kochhar A,Gibson WT,Cohen ASA,Agbdoi
10.1038/s41467-018-06014-6subject
Has Abstractpub_date
2018-11-05 00:00:00pages
4619issue
1issn
2041-1723pii
10.1038/s41467-018-06014-6journal_volume
9pub_type
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