1RCM:
reference: Crystal structure of a ubiquitin-dependent degradation substrate: a three-disulfide form of lysozyme., Hill CP, Johnston NL, Cohen RE, Proc Natl Acad Sci U S A 1993 May 1;90(9):4136-40. PMID: 8387211

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