3QS6:
reference: Insights into transport mechanism from LeuT engineered to transport tryptophan., Piscitelli CL, Gouaux E, EMBO J. 2011 Sep 27. doi: 10.1038/emboj.2011.353. PMID: 21952050

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).