7BSS:
reference: Transport Cycle of Plasma Membrane Flippase ATP11C by Cryo-EM., Nakanishi H, Nishizawa T, Segawa K, Nureki O, Fujiyoshi Y, Nagata S, Abe K, Cell Rep. 2020 Sep 29;32(13):108208. doi: 10.1016/j.celrep.2020.108208. PMID: 32997992

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