Detection of a de novo R1066H mutation in an Italian patient affected by cystic fibrosis

Abstract

Search for mutations in a cystic fibrosis patient, compound heterozygous for 1717–1G→A and another uncharacterized molecular defect, revealed the presence of a de novo R1066H mutation on the affected chromosome of paternal origin. Three additional rare mutations (R1066C, R1066S and R1066L), occurring at the CpG dinucleotide at position 3328–3329 of the cystic fibrosis transmembrane conductance regulator gene, have so far been reported. The identification of a R1066H de novo mutation further suggests that this dinucleotide may constitute a mutational hotspot.