CLCA1 is also one of the 6 genes (CLCA1, IL4, IL13, MMP12, TGFB1, TLR4) found in common between our KE genesets and the genesets proposed by Bosse24 for COPD and Poole27 for asthma. The gene discussed is CLCA1; the disease is chronic obstructive pulmonary disease.