RGD uses the Human Disease Ontology (DO, https://disease-ontology.org/) for disease curation across species. RGD automatically downloads each new release of the ontology on a monthly basis. Some additional terms which are required for RGD's curation purposes but are not currently covered in the official version of DO have been added. As corresponding terms are added to DO, these custom terms are retired and the DO terms substituted in existing annotations and subsequently used for curation.
A syndromic X-linked intellectual disability characterized by severe developmental delay, intellectual disability, microcephaly, impaired speech, ataxia, hypotonia and early-onset seizures that has_material_basis_in mutation in the SLC9A6 gene on chromosome Xq26. (DO)
Synonyms:
exact_synonym:
ANGELMAN SYNDROME-LIKE; Angelman-Like Syndrome, X-Linked; Intellectual Deficit, X-Linked, South African Type; MRXSCH; Mental Retardation, Microcephaly, Epilepsy, and Ataxia Syndrome; X-linked intellectual disability, South African type; X-linked intellectual disability-craniofacial dysmorphism-epilepsy-ophthalmoplegia-cerebellar atrophy syndrome; syndromic X-linked mental retardation, Christianson type
ClinVar Annotator: match by term: Christianson syndrome ClinVar Annotator: match by term: X-linked mental retardation, syndromic, Christianson type ClinVar Annotator: match by OMIM:300243