Autosomal Dominant Intellectual Disability-Craniofacial Dysmorphism-Macrocephaly-Hypotonia Syndrome Due to H1-4 Mutation, also known as h1-4-related neurodevelopmental disorder, is related to tatton-brown-rahman syndrome and rahman syndrome. An important gene associated with Autosomal Dominant Intellectual Disability-Craniofacial Dysmorphism-Macrocephaly-Hypotonia Syndrome Due to H1-4 Mutation is H1-4 (H1.4 Linker Histone, Cluster Member). Affiliated tissues include myeloid and skin.