6BQN:
reference: Structure of the human epithelial sodium channel by cryo-electron microscopy., Noreng S, Bharadwaj A, Posert R, Yoshioka C, Baconguis I, Elife. 2018 Sep 25;7. pii: 39340. doi: 10.7554/eLife.39340. PMID: 30251954

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