Multidrug and toxin extrusion protein 1 (MATE1), also known as solute carrier family 47, member 1, is a protein that in humans is encoded by the SLC47A1gene. SLC47A1 belongs to the MATE (multidrug and toxic compound extrusion) family of transporters that are found in bacteria, archaea and eukaryotes.
The multidrug effluxtransporterNorM from V. parahaemolyticus which mediates resistance to multiple antimicrobial agents (norfloxacin, kanamycin, ethidium bromide etc.) and its homologue from E. coli were identified in 1998, which is the first of Solute carrier family 47 member. NorM seems to function as drug/sodium antiporter which is the first example of Na+-coupled multidrug efflux transporter. NorM is a prototype of a new transporter family and Brown et al.. named it the multidrug and toxic compound extrusion family. The X-ray structure of the transporter NorM was determined to 3.65 Å, revealing an outward-facing conformation with two portals open to the outer leaflet of the membrane and a unique topology of the predicted 12 transmembrane helices distinct from any other known multidrug resistance transporter.
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