2FHH:
reference: Structure of the Mycobacterium tuberculosis proteasome and mechanism of inhibition by a peptidyl boronate., Hu G, Lin G, Wang M, Dick L, Xu RM, Nathan C, Li H, Mol Microbiol. 2006 Mar;59(5):1417-28. PMID: 16468986

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