CFTR Folding Consortium: Methods Available for Studies of CFTR Folding and Correction

Kathryn W. Peters, Tsukasa Okiyoneda, William E. Balch, Ineke Braakman, Jeffrey L. Brodsky, William B. Guggino, Christopher M. Penland, Harvey B. Pollard, Eric J. Sorscher, William R. Skach, Philip J. Thomas, Gergely L. Lukacs, Raymond A. Frizzell

Research output: Chapter in Book/Report/Conference proceedingChapter

27 Scopus citations


The CFTR Folding Consortium (CFC) was formed in 2004 under the auspices of the Cystic Fibrosis Foundation and its drug discovery and development affiliate, CFF Therapeutics. A primary goal of the CFC is the development and distribution of reagents and assay methods designed to better understand the mechanistic basis of mutant CFTR misfolding and to identify targets whose manipulation may correct CFTR folding defects. As such, reagents available from the CFC primarily target wild-type CFTR NBD1 and its common variant, F508del, and they include antibodies, cell lines, constructs, and proteins. These reagents are summarized here, and two protocols are described for the detection of cell surface CFTR: (a) an assay of the density of expressed HA-tagged CFTR by ELISA and (b) the generation and use of an antibody to CFTR’s first extracellular loop for the detection of endogenous CFTR. Finally, we highlight a systematic collection of assays, the CFC Roadmap, which is being used to assess the cellular locus and mechanism of mutant CFTR correction. The Roadmap queries CFTR structure–function relations at levels ranging from purified protein to well-differentiated human airway primary cultures.

Original languageEnglish (US)
Title of host publicationMethods in Molecular Biology
PublisherHumana Press Inc.
Number of pages19
StatePublished - 2011
Externally publishedYes

Publication series

NameMethods in Molecular Biology
ISSN (Print)1064-3745
ISSN (Electronic)1940-6029


  • Protein folding
  • antibody generation
  • cell surface protein detection
  • protein degradation
  • research consortium

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics


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