Immunodeficiency 110 with Lymphoproliferation, also known as t-cell immunodeficiency, recurrent infections, and autoimmunity with or without cardiac malformations, is related to immune deficiency disease and lymphopenia. An important gene associated with Immunodeficiency 110 with Lymphoproliferation is STK4 (Serine/Threonine Kinase 4). Affiliated tissues include t cells and skin, and related phenotypes are immunodeficiency and verrucae