| Namespace | disease_ontology | Obsolete | false |
| description | A hyper IgM syndrome that has_material_basis_in mutation in the TNFRSF5 gene, resulting in type 3 hyper-IgM immunodeficiency that is characterized by an inability of B cells to undergo isotype switching, an inability to mount an antibody-specific immune response, and a lack of germinal center formation. |
