| http://purl.uniprot.org/citations/16159897 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/16159897 | http://www.w3.org/2000/01/rdf-schema#comment | "Recent studies have shown that accessory proteins that interact with the apical Na(+)/H+ exchanger NHE3 are a vital part of the dynamic nature of the Na(+)/H+ exchanger regulation. We have identified MAST205, a microtubule-associated serine/threonine kinase with a molecular mass of 205 kDa that interacts with NHE3. MAST205 contains a S/T kinase domain and a PDZ domain that mediates interaction with NHE3. Northern blot analysis showed that MAST205 is highly expressed in human and rat kidney. Expression in opossum kidney (OK) cells showed that MAST205 is predominantly expressed in the apical membrane of the cells. Immunohistochemical studies demonstrated the presence of MAST205 at the apical region of the renal proximal tubules. Heterologous expression of MAST205 in OK cells inhibited endogenous NHE3 activity, and this inhibition required the presence of the kinase domain of MAST205, since deletion of the kinase domain or a dominant-negative mutant of MAST205 did not affect the activity of NHE3. Consistent with these results, we found that MAST205 phosphorylated NHE3 under in vitro conditions. However, overexpression of MAST205 did not affect expression of NHE3 proteins, suggesting that the effect of MAST205 was not mediated by a decrease in NHE3 expression. These findings suggest that MAST205 regulates NHE3 activity and, although the precise mechanism is yet to be determined, MAST205 appears to inhibit NHE3 activity through a phosphorylation-dependent mechanism."xsd:string |
| http://purl.uniprot.org/citations/16159897 | http://purl.org/dc/terms/identifier | "doi:10.1152/ajprenal.00161.2005"xsd:string |
| http://purl.uniprot.org/citations/16159897 | http://purl.uniprot.org/core/author | "Wang D."xsd:string |
| http://purl.uniprot.org/citations/16159897 | http://purl.uniprot.org/core/author | "Lee H.J."xsd:string |
| http://purl.uniprot.org/citations/16159897 | http://purl.uniprot.org/core/author | "Walden P.D."xsd:string |
| http://purl.uniprot.org/citations/16159897 | http://purl.uniprot.org/core/author | "Choi I."xsd:string |
| http://purl.uniprot.org/citations/16159897 | http://purl.uniprot.org/core/author | "Yun C.C."xsd:string |
| http://purl.uniprot.org/citations/16159897 | http://purl.uniprot.org/core/author | "Cooper D.S."xsd:string |
| http://purl.uniprot.org/citations/16159897 | http://purl.uniprot.org/core/author | "Cebotaro L."xsd:string |
| http://purl.uniprot.org/citations/16159897 | http://purl.uniprot.org/core/date | "2006"xsd:gYear |
| http://purl.uniprot.org/citations/16159897 | http://purl.uniprot.org/core/name | "Am J Physiol Renal Physiol"xsd:string |
| http://purl.uniprot.org/citations/16159897 | http://purl.uniprot.org/core/pages | "F428-37"xsd:string |
| http://purl.uniprot.org/citations/16159897 | http://purl.uniprot.org/core/title | "Coexpression of MAST205 inhibits the activity of Na+/H+ exchanger NHE3."xsd:string |
| http://purl.uniprot.org/citations/16159897 | http://purl.uniprot.org/core/volume | "290"xsd:string |
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