The Clinical and Functional Translation of CFTR (CFTR2) project presents a novel approach to clinical and functional annotation of mutations identified in disease-causing genes. Phenotype and genotype information on approximately 40,000 cystic fibrosis (CF) patients were collected from registries and large clinics. The disease-liability of the 160 most frequently reported mutations was evaluated by means of a multistage process which involved clinical (sweat chloride average), functional (expression in cell-based systems) and epidemiological (mutation analysis in obligate heterozygotes) steps. The results of this analysis can be consulted in a dedicated website. Data originated by CFTR2 may be valuable in several facets of CF care, including diagnosis, newborn screening, carrier testing, genotype/phenotype correlation and mutation-specific therapeutics.
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