5UWB:
reference: Architectures of Lipid Transport Systems for the Bacterial Outer Membrane., Ekiert DC, Bhabha G, Isom GL, Greenan G, Ovchinnikov S, Henderson IR, Cox JS, Vale RD, Cell. 2017 Apr 6;169(2):273-285.e17. doi: 10.1016/j.cell.2017.03.019. PMID: 28388411

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