5LHQ:
reference: Discovery of a novel conformational equilibrium in urokinase-type plasminogen activator., Kromann-Hansen T, Louise Lange E, Peter Sorensen H, Hassanzadeh-Ghassabeh G, Huang M, Jensen JK, Muyldermans S, Declerck PJ, Komives EA, Andreasen PA, Sci Rep. 2017 Jun 13;7(1):3385. doi: 10.1038/s41598-017-03457-7. PMID: 28611361

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