4WZ6:
reference: Binding screen for cystic fibrosis transmembrane conductance regulator correctors finds new chemical matter and yields insights into cystic fibrosis therapeutic strategy., Hall JD, Wang H, Byrnes LJ, Shanker S, Wang K, Efremov IV, Chong PA, Forman-Kay JD, Aulabaugh AE, Protein Sci. 2016 Feb;25(2):360-73. doi: 10.1002/pro.2821. Epub 2016 Jan 12. PMID: 26444971

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