Moreover, specific allelic variants of the major histocompatibility complex class II molecules involved in antigen recognition, including both human leukocyte antigen (HLA) genes (HLA-DRB1∗14 and DRB1∗15) and non-HLA genes (butyrophilin-like 2 and annexin A11), have been associated with a higher risk for developing cardiac sarcoidosis.10 The gene discussed is BTNL2; the disease is cardiac sarcoidosis.