Selective Igg Deficiency Disease, also known as igg deficiency, is related to common variable immunodeficiency and immune deficiency disease. An important gene associated with Selective Igg Deficiency Disease is PRDM1 (PR/SET Domain 1), and among its related pathways/superpathways are BAFF in B-Cell Signaling and NF-kappaB Signaling. The drugs Sulfamethoxazole and Trimethoprim have been mentioned in the context of this disorder. Related phenotypes are homeostasis/metabolism and neoplasm