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Dysfunction of CFTR bearing the delta F508 mutation
Journal article   Peer reviewed

Dysfunction of CFTR bearing the delta F508 mutation

Michael J Welsh, Gerene M Denning, Lynda S Ostedgaard and Matthew P Anderson
Journal of cell science., Vol.1993(Suppl 17), pp.235-239
1993
DOI: 10.1242/jcs.1993.Supplement_17.33
PMID: 7511616

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Abstract

The cystic fibrosis transmembrane conductance regulator (CFTR) is mutated in patients with cystic fibrosis (CF). The most common CF-associated mutation is deletion of phenylalanine at residue 508, CFTR delta F508. When expressed in heterologous cells, CFTR bearing the delta F508 mutation fails to progress through the normal biosynthetic pathway and fails to traffic to the plasma membrane. As a result, CFTR delta F508 is mislocalized and is not present in the apical membrane of primary cultures of airway epithelia. Consequently, the apical membrane of CF airway epithelia is Cl- -impermeable, a defect that probably contributes to the pathogenesis of the disease.
Biological and medical sciences Fundamental and applied biological sciences. Psychology General aspects Vertebrates: anatomy and physiology, studies on body, several organs or systems

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