Mutations in the beta-subunit of the epithelial Na+ channel in patients with a cystic fibrosis-like syndrome.
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Sheridan MB, Fong P, Groman JD, Conrad C, Flume P, Diaz R, Harris C, Knowles M, Cutting GR
Mutations in the beta-subunit of the epithelial Na+ channel in patients with a cystic fibrosis-like syndrome.
Hum Mol Genet. 2005 Nov 15;14(22):3493-8. Epub 2005 Oct 5.
- PubMed ID
- 16207733 [ View in PubMed]
- Abstract
Cystic fibrosis (CF) is an autosomal recessive disorder of Cl(-) and Na(+) transport. The vast majority of CF patients have deleterious mutations in an epithelial Cl(-) channel called the CF transmembrane conductance regulator (CFTR). In contrast, defects in the epithelial Na(+) channel (SCNN1) have been associated with phenotypes dominated by renal disease (systemic pseudohypoaldosteronism type I and Liddle syndrome). We report two non-classic CF patients without CFTR mutations who have novel deleterious mutations in the beta-subunits of SCNN1 in the absence of overt renal disease.