6WXD:
reference: Crystal Structure of the SARS-CoV-2 Non-structural Protein 9, Nsp9., Littler DR, Gully BS, Colson RN, Rossjohn J, iScience. 2020 Jul 24;23(7):101258. doi: 10.1016/j.isci.2020.101258. Epub 2020, Jun 9. PMID: 32592996

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