6C1E:
reference: Structural basis for gating pore current in periodic paralysis., Jiang D, Gamal El-Din TM, Ing C, Lu P, Pomes R, Zheng N, Catterall WA, Nature. 2018 May;557(7706):590-594. doi: 10.1038/s41586-018-0120-4. Epub 2018 May, 16. PMID: 29769724

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