3KHX:
reference: Crystal structure of Staphylococcus aureus metallopeptidase (Sapep) reveals large domain motions between the manganese-bound and apo-states., Girish TS, Gopal B, J Biol Chem. 2010 Sep 17;285(38):29406-15. Epub 2010 Jul 7. PMID: 20610394

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