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 hematopoietic system disease characterized by variable thrombocytopenia, hemolytic anemia, splenomegaly, and abnormalities in hemoglobin chain synthesis resulting in imbalance between the alpha and beta chains that has_material_basis_in homozygous or hemizygous missense mutation in the DNA binding domain of the GATA1 gene on chromosome Xp11.23. (DO)
CTD Direct Evidence: marker/mechanism ClinVar Annotator: match by term: Beta-thalassemia-X-linked thrombocytopenia syndrome | ClinVar Annotator: match by term: Thrombocytopenia, platelet dysfunction, hemolysis, and imbalanced globin synthesis