FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term immunodeficiency 56 ID (Ontology) DOID:0111982 (Human Disease)
Definition 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.
Also Known As "combined immunodeficiency due to IL21R deficiency" ; "IL21R immunodeficiency" ; "IMD56"
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autosomal genetic disease
 |__autosomal recessive disease__________________
combined immunodeficiency                        |
 |__combined T cell and B cell immunodeficiency__|
                                                 immunodeficiency 56
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Is a autosomal recessive disease
combined T cell and B cell immunodeficiency
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Synonyms
  • "combined immunodeficiency due to IL21R deficiency" EXACT
    "IL21R immunodeficiency" EXACT
    "IMD56" EXACT OMO:0003012
Secondary IDs
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MIM:615207
ORDO:357329
UMLS_CUI:C3554687