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Structure and Function of the CFTR Chloride Channel

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SHEPPARD, DAVID N., WELSH, MICHAEL J.·1999·Physiological Reviews

Abstract

Sheppard, David N., and Michael J. Welsh. Structure and Function of the CFTR Chloride Channel. Physiol. Rev. 79 , Suppl.: S23–S45, 1999. — The cystic fibrosis transmembrane conductance regulator (CFTR) is a unique member of the ABC transporter family that forms a novel Cl−channel. It is located predominantly in the apical membrane of epithelia where it mediates transepithelial salt and liquid movement. Dysfunction of CFTR causes the genetic disease cystic fibrosis. The CFTR is composed of five domains: two membrane-spanning domains (MSDs), two nucleotide-binding domains (NBDs), and a regulatory (R) domain. Here we review the structure and function of this unique channel, with a focus on how the various domains contribute to channel function. The MSDs form the channel pore, phosphorylation of the R domain determines channel activity, and ATP hydrolysis by the NBDs controls channel gating. Current knowledge of CFTR structure and function may help us understand better its mechanism of action, its role in electrolyte transport, its dysfunction in cystic fibrosis, and its relationship to other ABC transporters.

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Crossref · 10.1152/physrev.1999.79.1.s23

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Metadata

Authors
SHEPPARD, D. N., & WELSH, M. J.
Venue
Physiological Reviews
Published
1999-01-01
Volume
79
Issue
1
Pages
S23-S45
ISSN
  • 0031-9333 (ISSN-L)
  • 1522-1210
OpenAlex
W1745204207
Cited by
1,018
References
2
FWCI
6.69
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Structure and Function of the CFTR Chloride Channel. https://app.cochat.ai/papers/10.1152/physrev.1999.79.1.s23
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SHEPPARD, D. N., & WELSH, M. J. (1999). Structure and Function of the CFTR Chloride Channel. Physiological Reviews. https://doi.org/10.1152/physrev.1999.79.1.s23

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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