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. 2018 Apr 12;19(4):1177. doi: 10.3390/ijms19041177

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© 2018 by the author.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Crystal structures of GluTPh showing transport mechanism of a glutamate transporter: (a) Tube and worm diagrams showing the three stages of GluTPh during transport. Left, outward-occluded, PDBID:2NWX; middle, intermediate, PDBID 3V8G; right, inward-occluded, PDBID:3KBC. The trimerization domain is in light blue, and the transport domain is in light green with l-aspartate (spheres) and a sodium ion (yellow). The orientations of the trimerization domain of each structure are aligned. (b) Ribbon diagram of a transport domain core structure with HP1 (green), HP2 (cyan), TM7 (light green) and TM8 (light cyan). Left, l-aspartate (spheres) and sodium ions (yellow), PDBID:2NWX; right, TBOA (spheres), PDBID:2NWW.