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 syndrome characterized by sagging or wrinkly skin, reduced skin elasticity, delayed closure of the fontanel, typically mild developmental delay, and variable other skeletal, neurological and facial features that has_material_basis_in homozygous or compound heterozygous mutation in the ATP6V0A2 gene on chromosome 12q24.31. (DO)