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.
An epidermolysis bullosa simplex characterized by generalized non-scarring skin blistering that often occurs in clusters, progressive hyperkeratosis of the palms and soles, clumping of keratin filaments in basal epidermal cells and that has_material_basis_in mutation in either the KRT5 or KRT14 genes. This is the most severe of the epidermolysis bullosa simplex types and may result in neonatal or infant lethality in some cases. (DO)