PMID: 10744680

Yue H, Devidas S, Guggino WB
The two halves of CFTR form a dual-pore ion channel.
J Biol Chem. 2000 Apr 7;275(14):10030-4., 2000-04-07 [PubMed]
Sentences
No. Mutations Sentence Comment
5 ABCC7 p.Arg334Trp
X
ABCC7 p.Arg334Trp 10744680:5:39
status: NEW
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ABCC7 p.Arg347Pro
X
ABCC7 p.Arg347Pro 10744680:5:49
status: NEW
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In further studies, a "dual-R mutant," R334W and R347P in the transmembrane segment 6 of the first half of CFTR, severely impaired the large conductance channel without affecting the small conductance channel. Login to comment
76 ABCC7 p.Arg334Trp
X
ABCC7 p.Arg334Trp 10744680:76:45
status: NEW
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ABCC7 p.Arg347Pro
X
ABCC7 p.Arg347Pro 10744680:76:55
status: NEW
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We also tested the Cl- conduction mutations, R334W and R347P. Login to comment
79 ABCC7 p.Arg334Trp
X
ABCC7 p.Arg334Trp 10744680:79:41
status: NEW
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ABCC7 p.Arg347Pro
X
ABCC7 p.Arg347Pro 10744680:79:47
status: NEW
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As expected the "dual-arginine" mutants, R334W/R347P, in full-length CFTR severely reduced whole cell Cl- currents in airways cells transiently transfected with this mutant. Login to comment
122 ABCC7 p.Arg334Trp
X
ABCC7 p.Arg334Trp 10744680:122:22
status: NEW
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ABCC7 p.Arg347Pro
X
ABCC7 p.Arg347Pro 10744680:122:32
status: NEW
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Dual arginine mutants R334W and R347P in the transmembrane segment six of TMD1 eliminate the large conductance but retain the small conductance of CFTR. Login to comment
165 ABCC7 p.Thr1134Phe
X
ABCC7 p.Thr1134Phe 10744680:165:46
status: NEW
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McDough observed (12) that wild-type CFTR and T1134F mutant CFTR occasionally showed a long-lived subconductance state with amplitude ϳ60% of the full conductance in Xenopus oocytes. Login to comment