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.
Term:
INTELLECTUAL DEVELOPMENTAL DISORDER WITH MUSCLE TONE ABNORMALITIES AND DISTAL SKELETAL DEFECTS
This disease is an autosomal recessive disorder characterized by global developmental delay apparent in infancy manifest as speech delay and late walking by a few years. Affected individuals have hypertonia or, more rarely, hypotonia; a notable common feature is facial myokymia with corresponding EMG findings.
ClinVar Annotator: match by term: Intellectual developmental disorder with muscle tone abnormalities and distal skeletal defects | ClinVar Annotator: match by term: Peripheral nerve hyperexcitability syndrome