| First Author | Lepke S | Year | 1992 |
| Journal | Biochim Biophys Acta | Volume | 1106 |
| Issue | 1 | Pages | 13-6 |
| PubMed ID | 1581325 | Mgi Jnum | J:1124 |
| Mgi Id | MGI:49656 | Doi | 10.1016/0005-2736(92)90215-8 |
| Citation | Lepke S, et al. (1992) Mediation of inorganic anion transport by the hydrophobic domain of mouse erythroid band 3 protein expressed in oocytes of Xenopus laevis. Biochim Biophys Acta 1106(1):13-6 |
| abstractText | A cDNA clone of the mouse erythroid band 3 protein encoding the 556 amino acid residues of the hydrophobic domain from Thr-374 to the C-terminal Val-929 is shown by immunoprecipitation to be expressed in Xenopus oocytes. Measurements of 36Cl- efflux indicate that the translation product mediates Cl- transport, which is inhibitable reversibly by DNDS or H2DIDS, specific inhibitors of band 3-mediated transport. The apparent KI values are 3.6 microM and 0.094 microM, respectively, and hence similar to those found in the wild type band 3-mediated anion transport. The rapid reversible inhibition by H2DIDS slowly changes to irreversible inhibition. The rate of change increases with increasing pH, again similar as to the wild-type band 3. It is concluded that the hydrophobic domain of band 3 is capable of executing anion transport essentially similar to the full-length band 3, although minor differences with respect to transport and inhibition kinetics cannot be ruled out. |
