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The ABC Protein Turned Chloride Channel Whose Failure Causes Cystic Fibrosis

Overview
Journal Nature
Specialty Science
Date 2006 Mar 24
PMID 16554808
Citations 307
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Abstract

CFTR chloride channels are encoded by the gene mutated in patients with cystic fibrosis. These channels belong to the superfamily of ABC transporter ATPases. ATP-driven conformational changes, which in other ABC proteins fuel uphill substrate transport across cellular membranes, in CFTR open and close a gate to allow transmembrane flow of anions down their electrochemical gradient. New structural and biochemical information from prokaryotic ABC proteins and functional information from CFTR channels has led to a unifying mechanism explaining those ATP-driven conformational changes.

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