Immunodeficiency 7, also known as tcr-alpha-beta-positive t-cell deficiency, is related to immunodeficiency, common variable, 7 and immunodeficiency 45. An important gene associated with Immunodeficiency 7 is TRAC (T Cell Receptor Alpha Constant), and among its related pathways/superpathways are Development Angiotensin activation of ERK and Immune response Antigen presentation by MHC class II. Affiliated tissues include t cells and bone marrow, and related phenotypes are failure to thrive and hepatomegaly