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 ichthyosis that is characterized by a build-up of scales on the skin, typically on the back of the neck and trunk resulting from skin cells that do not properly separate from the outermost surface of the skin, and has_material_basis_in X-linked recessive mutation or deletion of the STS gene on chromosome Xp22. (DO)
CTD Direct Evidence: marker/mechanism ClinVar Annotator: match by term: Ichthyosis, X-Linked | ClinVar Annotator: match by term: Placental steroid sulfatase deficiency | ClinVar Annotator: match by term: Recessive X-linked ichthyosis | ClinVar Annotator: match by term: STS-related condition