Cystic fibrosis (CF) is a life-shortening and multisystem autosomal recessive disease, caused by mutation of transmembrane conductance regulator (CFTR) gene that encodes for a chloride channel expressed on the membrane of epithelial cells of the respiratory tract, intestine, hepatobiliary system, and exocrine sweat glands [1,2]. The gene discussed is CFTR; the disease is cystic fibrosis.