| http://purl.uniprot.org/citations/10631088 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/10631088 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/10631088 | http://www.w3.org/2000/01/rdf-schema#comment | "In human, vitamin C (l-ascorbic acid) is an essential micronutrient required for an array of biological functions including enzymatic reactions and antioxidation. We describe here the molecular cloning of a novel human cDNA encoding a vitamin C transporter SVCT1. SVCT1 is largely confined to bulk-transporting epithelia (e.g., kidney and small intestine) with a putative alternative-splice product present in thymus. Applying radiotracer and voltage-clamp approaches in cRNA-injected Xenopus oocytes, we found that SVCT1 mediates saturable, concentrative, high-affinity l-ascorbic acid transport (K(0.5) = 50-100 microM) that is electrogenic and can be inhibited by phloretin. SVCT1 displays exquisite substrate selectivity, greatly favoring l-ascorbic acid over its isomers d-isoascorbic acid and dehydroascorbic acid and 2- or 6-substituted analogues, whereas glucose and nucleobases are excluded. We have mapped the SLC23A2 gene (coding for SVCT1) to human chromosome 5 in band 5q31.2-31.3, within a region commonly deleted in malignant myeloid (leukemia) diseases. In addition, we have demonstrated that the human SLC23A1 gene product is a related high-affinity l-ascorbic acid transporter (SVCT2) that is widely distributed in brain, retina, and a host of endocrine and neuroendocrine tissues. The molecular identification of the human l-ascorbic acid transporters now provides the tools with which to investigate their roles in vitamin C metabolism in health and disease."xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.org/dc/terms/identifier | "doi:10.1006/bbrc.1999.1929"xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.org/dc/terms/identifier | "doi:10.1006/bbrc.1999.1929"xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/author | "Wang Y."xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/author | "Wang Y."xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/author | "Mackenzie B."xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/author | "Mackenzie B."xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/author | "Morton C.C."xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/author | "Morton C.C."xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/author | "Weremowicz S."xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/author | "Weremowicz S."xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/author | "Hediger M.A."xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/author | "Hediger M.A."xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/author | "Tsukaguchi H."xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/author | "Tsukaguchi H."xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/date | "2000"xsd:gYear |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/date | "2000"xsd:gYear |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/name | "Biochem. Biophys. Res. Commun."xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/name | "Biochem. Biophys. Res. Commun."xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/pages | "488-494"xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/pages | "488-494"xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/title | "Human vitamin C (L-ascorbic acid) transporter SVCT1."xsd:string |
| http://purl.uniprot.org/citations/10631088 | http://purl.uniprot.org/core/title | "Human vitamin C (L-ascorbic acid) transporter SVCT1."xsd:string |