6XMU:
reference: The endoplasmic reticulum P5A-ATPase is a transmembrane helix dislocase., McKenna MJ, Sim SI, Ordureau A, Wei L, Harper JW, Shao S, Park E, Science. 2020 Sep 25;369(6511). pii: 369/6511/eabc5809. doi:, 10.1126/science.abc5809. PMID: 32973005

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