4LTO:
reference: Structure of a Prokaryotic Sodium Channel Pore Reveals Essential Gating Elements and an Outer Ion Binding Site Common to Eukaryotic Channels., Shaya D, Findeisen F, Abderemane-Ali F, Arrigoni C, Wong S, Nurva SR, Loussouarn G, Minor DL Jr, J Mol Biol. 2013 Oct 10. pii: S0022-2836(13)00636-0. doi:, 10.1016/j.jmb.2013.10.010. PMID: 24120938

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