CAMK2A and autism spectrum disorder: Pathogenic variants in the neuronal CAMK2A gene have been recently associated with “intellectual developmental disorder, autosomal dominant 53′′ (OMIM#617798), a syndrome characterized by variable clinical manifestations including mild to severe intellectual disability, delayed psychomotor development, delayed or absent speech, delayed walking, seizures, dysmorphic features and behavioral psychiatric manifestations as autism spectrum disorders, aggressive behavior, and hyperactivity.