Cystic fibrosis (CF) is caused by a mutation in the cystic fibrosis transmembrane conductance regulator (CFTR) protein. Thousands of CFTR mutations have been identified. but only a fraction are known to cause CF. with the most common being the prototypical class II CFTR mutation F508del. https://parisnaturalfoodes.shop/product-category/red-sunset-pwd/