1CB5: Human Bleomycin Hydrolase.
reference: Crystal structure of human bleomycin hydrolase, a self-compartmentalizing cysteine protease., O'Farrell PA, Gonzalez F, Zheng W, Johnston SA, Joshua-Tor L, Structure Fold Des 1999 Jun 15;7(6):619-27. PMID: 10404591

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