2HZE:
reference: Crystal Structures of a Poxviral Glutaredoxin in the Oxidized and Reduced States Show Redox-correlated Structural Changes., Bacik JP, Hazes B, J Mol Biol. 2007 Feb 2;365(5):1545-58. Epub 2006 Nov 6. PMID: 17137595

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