PMID: 10354464

Chabot H, Vives MF, Dagenais A, Grygorczyk C, Berthiaume Y, Grygorczyk R
Downregulation of epithelial sodium channel (ENaC) by CFTR co-expressed in Xenopus oocytes is independent of Cl- conductance.
J Membr Biol. 1999 Jun 1;169(3):175-88., 1999-06-01 [PubMed]
Sentences
No. Mutations Sentence Comment
31 ABCC7 p.Gly551Asp
X
ABCC7 p.Gly551Asp 10354464:31:221
status: NEW
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ABCC7 p.Arg117His
X
ABCC7 p.Arg117His 10354464:31:242
status: NEW
view ABCC7 p.Arg117His details
This hypothesis was based on the observation that the magnitude of Iamil downregulation was correlated with the ability of CFTR to conduct Cl- , was reduced for CFTR mutants that had diminished membrane Cl- permeability (G551D, ⌬F508, R117H) and was abolished by inhibition of CFTR Cl-conductance using diphenylamine-carboxylate (DPC; Mall et al., 1996; Briel et al., 1998). Login to comment
255 ABCC7 p.Gly551Asp
X
ABCC7 p.Gly551Asp 10354464:255:88
status: NEW
view ABCC7 p.Gly551Asp details
ABCC7 p.Gly551Asp
X
ABCC7 p.Gly551Asp 10354464:255:230
status: NEW
view ABCC7 p.Gly551Asp details
ABCC7 p.Gly551Asp
X
ABCC7 p.Gly551Asp 10354464:255:231
status: NEW
view ABCC7 p.Gly551Asp details
The interaction was not observed if the CFTR peptide fragment contained the CF mutation G551D, and coexpression of ENaC with each CFTR peptide fragment in Xenopus oocytes suggested that ENaC was downregulated by wild type but not G551D peptide. Login to comment