TFR1 deficiency
Related gene: TFRC
Inheritance pattern: Autosomal recessive
Deficiency of transferrin receptor 1 (TFR1) is a rare, recessive immunodeficiency that has been associated with hypogammaglobulinemia, defective T cell function despite normal quantities, intermittent neutropenia and thrombocytopenia, and mild anemia. TFR1 deficiency has been successfully treated via hematopoietic stem cell transplantation (HSCT) with a resolution of all abnormalities.