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 blood platelet disease characterized by autosomal dominant inheritance of increased bleeding tendency, gray platelets, thrombocytopenia, thrombasthenia, abnormal megakaryocytes, decreased or absent alpha-granules in platelets, and myelofibrosis that has_material_basis_in heterozygous mutation in the GFI1B gene on chromosome 9q34. (DO)
CTD Direct Evidence: marker/mechanism ClinVar Annotator: match by term: GFI1B-related condition | ClinVar Annotator: match by term: Platelet-type bleeding disorder 17