6533b7d4fe1ef96bd1262815
RESEARCH PRODUCT
Functional characterization of ORCTL2--an organic cation transporter expressed in the renal proximal tubules.
Mark ReeceDavid E. HousmanPhilippe GrosJerry PelletierChristina KastDirk PrawittJohn E. LandersBernhard Zabelsubject
Beckwith-Wiedemann SyndromeOrganic Cation Transport ProteinsTranscription GeneticMolecular Sequence DataBiophysicsTransfectionBiochemistryHomology (biology)11p15.5Kidney Tubules ProximalStructural BiologyGeneticsmedicineAnimalsHumansMolecular BiologyGeneTetracycline/H+ antiporterKidneyOrganic cation transport proteinsbiologyBacteriaBase SequenceMembrane transport proteinOrganic cation transporterMultidrug resistance-associated protein 2Chromosomes Human Pair 11Tetracycline ResistanceOrganic cation transporter like-2Chromosome MappingMembrane ProteinsBiological TransportChloroquineCell BiologyApical membraneTetracyclineMolecular biologyQuinidineDrug Resistance MultipleRecombinant ProteinsKineticsmedicine.anatomical_structureBiochemistryOligodeoxyribonucleotidesCOS Cellsbiology.proteinImmunohistochemistryCarrier Proteinsdescription
AbstractChromosome 11p15.5 harbors a gene or genes involved in Beckwith-Wiedemann syndrome that confer(s) susceptibility to Wilms' tumor, rhabdomyosarcoma, and hepatoblastoma. We have previously identified a transcript at 11p15.5 which encodes a putative membrane transport protein, designated organic cation transporter-like 2 (ORCTL2), that shares homology with tetracycline resistance proteins and bacterial multidrug resistance proteins. In this report, we have investigated the transport properties of ORCTL2 and show that this protein can confer resistance to chloroquine and quinidine when overexpressed in bacteria. Immunohistochemistry analyses performed with anti-ORCTL2 polyc.onal antibodies on human renal sections indicate that ORCTL2 is localized on the apical membrane surface of the proximal tubules. These results suggest that ORCTL2 may play a role in the transport of chloroquine and quinidine related compounds in the kidney.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-09-23 | FEBS letters |