Olfactory receptor 2T4, myeloid leukemia factor 2, pulmonary surfactant-associated protein A2, transcription factor JunB, thioredoxin-dependent peroxide reductase, inactive phospholipid phosphatase 7, and odd-skipped-related 1 protein were found in 53% of samples obtained from NSCLC patients. Here, SFTPA2 is linked to non-small cell lung carcinoma.