Case Report: Whole Exome Sequencing Unveils an Inherited Truncating Variant in CNTN6 (p.Ser189Ter) in a Mexican Child with Autism Spectrum Disorder

Abstract

Autism spectrum disorders (ASDs) are a group of heterogeneous neurodevelopmental disorders with hundreds of related genes. Among these, CNTN6 (Contactin-6) has recently been associated. Herein, we describe a paternally inherited CNTN6 variant predicted in silico to be deleterious in a patient presenting with language delay, poor social interaction, stereotypic behavior, and sensory-motor and hearing problems. Additional genomic data by whole-exome sequencing (WES) suggest, however, that a concomitant pathogenic genetic background would be needed to explain the phenotype along with this CNTN6 variant.