2QMI:
reference: Structure of the archaeal pab87 peptidase reveals a novel self-compartmentalizing protease family., Delfosse V, Girard E, Birck C, Delmarcelle M, Delarue M, Poch O, Schultz P, Mayer C, PLoS One. 2009;4(3):e4712. Epub 2009 Mar 5. PMID: 19266066

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