Intellectual Developmental Disorder, X-Linked 82, also known as mental retardation, x-linked 82, is related to non-syndromic x-linked intellectual disability 82 and major affective disorder 1. An important gene associated with Intellectual Developmental Disorder, X-Linked 82 is MRX82 (Mental Retardation, X-Linked 82). Related phenotypes are intellectual disability and seizure