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| Content Provider | PubMed Central |
|---|---|
| Author | Ward, C. L. Krouse, M. E. Gruenert, D. C. Kopito, R. R. Wine, J. J. |
| Abstract | Cystic fibrosis (CF) involves a profound reduction of Cl- permeability in several exocrine tissues. A distinctive, outwardly rectifying, depolarization-induced Cl- channel (ORDIC channel) has been proposed to account for the Cl- conductance that is defective in CF. The recently identified CF gene is predicted to code for a 1480-amino acid integral membrane protein termed the CF transmembrane conductance regulator (CFTR). The CFTR shares sequence similarity with a superfamily of ATP-binding membrane transport proteins such as P-glycoprotein and STE6, but it also has features consistent with an ion channel function. It has been proposed that the CFTR might be an ORDIC channel. To determine if CFTR and ORDIC channel expression are correlated, we surveyed various cell lines for natural variation in CFTR and ORDIC channel expression. In four human epithelial cell lines (T84, CaCo2, PANC-1, and 9HTEo-/S) that encompass the full observed range of CFTR mRNA levels and ORDIC channel density we found no correlation. |
| Starting Page | 5277 |
| File Format | |
| ISSN | 10916490 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 12 |
| Volume Number | 88 |
| Language | English |
| Publisher Date | 1991-06-15 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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