5I71: X-Ray Structure Of The Ts3 Human Serotonin Transporter Compl S-Citalopram At The Central Site
reference: X-ray structures and mechanism of the human serotonin transporter., Coleman JA, Green EM, Gouaux E, Nature. 2016 Apr 21;532(7599):334-9. doi: 10.1038/nature17629. Epub 2016 Apr 6. PMID: 27049939

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