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 combined T cell and B cell immunodeficiency characterized by B- and T-cell defects including defective class-switched B cells, low IgG, defective antibody response, and defective T-cell responses to certain antigens, and variable dysfunction of NK cells that has_material_basis_in homozygous or compound heterozygous mutation in the IL21R gene on chromosome 16p12.1. (DO)
Synonyms:
exact_synonym:
IL21R immunodeficiency; IMD56; combined immunodeficiency due to IL21R deficiency