The novel putative bile acid transporter SLC10A5 is highly expressed in liver and kidney
- Institute of Pharmacology and Toxicology, Justus Liebig University of Giessen, Frankfurter Street 107, 35392 Giessen (Germany)
- Institute of Veterinary Anatomy, Histology, and Embryology, Justus Liebig University of Giessen (Germany)
Here we report the identification, cloning, and characterization of SLC10A5, which is a new member of Solute Carrier Family 10 (SLC10), also known as the 'sodium/bile acid cotransporter family'. Expression of SLC10A5/Slc10a5 was examined by quantitative real-time PCR and revealed its highest expression levels in liver and kidney in humans, rat and mouse. In rat liver and kidney, Slc10a5 expression was localized by in situ hybridization to hepatocytes and proximal tubules, respectively. A SLC10A5-FLAG fusion protein was expressed in HEK293 cells and showed an apparent molecular weight of 42 kDa after immunoprecipitation. When expressed in Xenopus laevis oocytes, the SLC10A5-FLAG protein was detected in the oocyte's plasma membrane but showed no transport activity for taurocholate, cholate, estrone-3-sulfate, or dehydroepiandrosterone sulfate. As bile acid carriers are the most related carriers to SLC10A5 though, we strongly suppose that SLC10A5 is an orphan carrier with yet non-identified substrates.
- OSTI ID:
- 20991526
- Journal Information:
- Biochemical and Biophysical Research Communications, Vol. 361, Issue 1; Other Information: DOI: 10.1016/j.bbrc.2007.06.160; PII: S0006-291X(07)01349-6; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0006-291X
- Country of Publication:
- United States
- Language:
- English
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