4NY5:
reference: Ruthenium metalation of proteins: the X-ray structure of the complex formed between NAMI-A and hen egg white lysozyme., Messori L, Merlino A, Dalton Trans. 2014 Mar 25;43(16):6128-31. doi: 10.1039/c3dt53582g. PMID: 24553967

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