3BPM:
reference: Structures of falcipain-2 and falcipain-3 bound to small molecule inhibitors: implications for substrate specificity., Kerr ID, Lee JH, Pandey KC, Harrison A, Sajid M, Rosenthal PJ, Brinen LS, J Med Chem. 2009 Feb 12;52(3):852-7. PMID: 19128015

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