| 4LBE: reference: Molecular interactions involved in proton-dependent gating in KcsA potassium channels., Posson DJ, Thompson AN, McCoy JG, Nimigean CM, J Gen Physiol. 2013 Dec;142(6):613-24. doi: 10.1085/jgp.201311057. Epub 2013 Nov , 11. PMID: 24218397 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).