Two de novo missense variants in the FBN1 gene were identified in ASD probands from the Simons Simplex Collection in Iossifov et al., 2012 and Iossifov et al., 2014. Krumm et al., 2015 reported that no de novo SNVs in this gene were observed in SSC unaffected siblings (de novo SNV P-value <0.05), and no rare effect types were reported in the Exome Variant Server. A third de novo missense variant in this gene was identified in De Rubeis et al., 2014
This gene encodes a member of the fibrillin family. The encoded protein is a large, extracellular matrix glycoprotein that serve as a structural component of 10-12 nm calcium-binding microfibrils. These microfibrils provide force bearing structural support in elastic and nonelastic connective tissue throughout the body. Mutations in this gene are associated with Marfan syndrome, isolated ectopia lentis, autosomal dominant Weill-Marchesani syndrome, MASS syndrome, and Shprintzen-Goldberg craniosynostosis syndrome.
Type of Disorder
De novo gene disruptions in children on the autistic spectrum.