2KDX:
reference: Structure of a nickel chaperone, HypA, from Helicobacter pylori reveals two distinct metal binding sites., Xia W, Li H, Sze KH, Sun H, J Am Chem Soc. 2009 Jul 29;131(29):10031-40. PMID: 19621959

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