Discovering the chloride pathway in the CFTR channel

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Permeation through the CFTR chloride channel.

The cystic fibrosis transmembrane conductance regulator (CFTR) protein forms a Cl(-) channel found in the plasma membranes of many epithelial cells, including those of the kidney, gut and conducting airways. Mutation of the gene encoding CFTR is the primary defect in cystic fibrosis, a disease that affects approximately 30 000 individuals in the United States alone. Alteration of CFTR function ...

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Structure and function of the CFTR chloride channel.

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 ge...

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Accessory Protein Facilitated CFTR-CFTR Interaction, a Molecular Mechanism to Potentiate the Chloride Channel Activity

The cystic fibrosis transmembrane conductance regulator (CFTR) gene encodes a chloride channel protein that belongs to the superfamily of ATP binding cassette (ABC) transporters. Phosphorylation by protein kinase A in the presence of ATP activates the CFTR-mediated chloride conductance of the apical membranes. We have identified a novel hydrophilic CFTR binding protein, CAP70, which is also con...

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The genetic disease cystic fibrosis is caused by mutation of the gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR). Controversial studies reported regulation of the epithelial sodium channel (ENaC) by CFTR. We found that uptake of (22)Na(+) through ENaC is modulated by activation of CFTR in oocytes, coexpressing CFTR and ENaC, depending on extracellular chloride con...

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ژورنال

عنوان ژورنال: Cellular and Molecular Life Sciences

سال: 2019

ISSN: 1420-682X,1420-9071

DOI: 10.1007/s00018-019-03211-4