Molecular interaction of organic cation transporters with the tetraspanin CD63 modulates transporter trafficking and their trafficking‐associated regulation
Abstract:Human organic cation transporters (hOCT1 to 3) are involved in the transport of endogenous and exogenous organic cations in the liver, kidney and brain. Here we analyse the regulation of hOCT1 to hOCT3 by direct protein‐protein interaction using a mating based Split‐Ubiquitin‐Yeast‐Two‐Hybrid System and pull‐down assays. Specifically, we found that the tetraspanin CD63 is an interacting partner of hOCT2 and hOCT3. A strong co‐localisation of CD63 and hOCT2 was shown on the plasma membrane and in vesicular comp… Show more
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