4OXR:
reference: Apo, Zn2+-bound and Mn2+-bound structures reveal ligand binding properties of SitA from the pathogen Staphylococcus pseudintermedius., Abate F, Malito E, Cozzi R, Lo Surdo P, Maione D, Bottomley MJ, Biosci Rep. 2014 Oct 14. PMID: 25311310

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