Inflammatory Bowel Disease-Recurrent Sinopulmonary Infections Syndrome, also known as nfat5 haploinsufficiency, is related to immune deficiency disease and autoimmune disease. An important gene associated with Inflammatory Bowel Disease-Recurrent Sinopulmonary Infections Syndrome is NFAT5 (Nuclear Factor Of Activated T Cells 5). Affiliated tissues include bone marrow and bone.