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:
neurodevelopmental disorder with hypotonia, language delay, and skeletal defects with or without seizures
An autosomal dominant intellectual developmental disorder characterized by behavioral abnormalities and developmental delay ranging from mild-to-moderate impaired intellectual development with expressive language delay to severly impaired intellectual development, severe hypotonia with delayed walking or inability to walk, and poor or absent speech that has_material_basis_in heterozygous mutation in the CACNA1C gene on chromosome 12p13.33. (DO)