Ito, Y;
Carss, KJ;
Duarte, ST;
Hartley, T;
Keren, B;
Kurian, MA;
Marey, I;
... Revel-Vilk, S; + view all
(2018)
De Novo Truncating Mutations in WASF1 Cause Intellectual Disability with Seizures.
American Journal of Human Genetics
, 103
(1)
pp. 144-153.
10.1016/j.ajhg.2018.06.001.
Preview |
Text
Gale VoR 1-s2.0-S0002929718301940-main.pdf Download (1MB) | Preview |
Abstract
© 2018 Next-generation sequencing has been invaluable in the elucidation of the genetic etiology of many subtypes of intellectual disability in recent years. Here, using exome sequencing and whole-genome sequencing, we identified three de novo truncating mutations in WAS protein family member 1 (WASF1) in five unrelated individuals with moderate to profound intellectual disability with autistic features and seizures. WASF1, also known as WAVE1, is part of the WAVE complex and acts as a mediator between Rac-GTPase and actin to induce actin polymerization. The three mutations connected by Matchmaker Exchange were c.1516C>T (p.Arg506Ter), which occurs in three unrelated individuals, c.1558C>T (p.Gln520Ter), and c.1482delinsGCCAGG (p.Ile494MetfsTer23). All three variants are predicted to partially or fully disrupt the C-terminal actin-binding WCA domain. Functional studies using fibroblast cells from two affected individuals with the c.1516C>T mutation showed a truncated WASF1 and a defect in actin remodeling. This study provides evidence that de novo heterozygous mutations in WASF1 cause a rare form of intellectual disability.
Archive Staff Only
 |
View Item |
