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 borderline to severe intellectual disability, impaired language development, and variable additional features including; behavioral problems, psychiatric disorders, seizures, progressive ataxia, brain abnormalities, and facial dysmorphisms that has_material_basis_in heterozygous or hemizygous mutation in the CLCN4 gene on chromosome Xp22.2. (DO)
ClinVar Annotator: match by term: CLCN4-related X-linked intellectual disability syndrome | ClinVar Annotator: match by term: CLCN4-related disorder | ClinVar Annotator: match by term: MRX49 | ClinVar Annotator: match by term: RAYNAUD-CLAES SYNDROME