6MZO:
reference: X-ray structure of an inactive zymogen clostripain-like protease from Parabacteroides distasonis., Gonzalez-Paez GE, Roncase EJ, Wolan DW, Acta Crystallogr D Struct Biol. 2019 Mar 1;75(Pt 3):325-332. doi:, 10.1107/S2059798319000809. Epub 2019 Feb 28. PMID: 30950403

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