Intellectual Developmental Disorder, Autosomal Dominant 18

**Semantic type:** Mental or Behavioral Dysfunction

**Definition:** An autosomal dominant neurodevelopmental syndrome caused by mutation(s) in the GATAD2B gene, encoding transcriptional repressor p66-beta. It is characterized by global developmental delay and intellectual impairment.

**Synonyms:** - GAND Syndrome - MRD18 - Mental Retardation, Autosomal Dominant 18