Spectrum of CFTR gene mutations in Iranian Azeri Turkish patients with cystic fibrosis.

AIMS Cystic fibrosis (CF) is an autosomal recessive disease caused by mutations in the CF transmembrane conductance regulator (CFTR) gene. In the present study, for the first time, we determined the spectrum of CFTR gene mutations in 100 patients with CF originated from the Iranian Azeri Turkish ethnic group. RESULTS Here, we report identification of 17 previously known and one novel mutation, namely K1302X, in this cohort. The frequency of deltaF508 mutation was found to be 23%. CONCLUSIONS Low frequency of deltaF508 mutation and detection of one novel and 16 known mutations reflect a heterogeneous spectrum of the mutations in this ethnic group.