A recent study demonstrated that circulating levels of IgG antibodies against linear peptide antigens derived from baculoviral IAP repeat‐containing protein 5 isoform 2 (BIRC5) and myc proto‐oncogene protein (MYC) were significantly increased in nonsmall cell lung cancer (NSCLC). The gene discussed is BIRC5; the disease is non-small cell lung carcinoma.