Grin2b-Related Developmental Delay, Intellectual Disability and Autism Spectrum Disorder, also known as grin2b-related neurodevelopmental disorder, is related to grin2b-related neurodevelopmental disorder and intellectual developmental disorder, autosomal dominant 6, with or without seizures. An important gene associated with Grin2b-Related Developmental Delay, Intellectual Disability and Autism Spectrum Disorder is GRIN2B (Glutamate Ionotropic Receptor NMDA Type Subunit 2B). Affiliated tissues include brain.