4AEZ:
reference: Structure of the mitotic checkpoint complex., Chao WC, Kulkarni K, Zhang Z, Kong EH, Barford D, Nature. 2012 Mar 21;484(7393):208-13. doi: 10.1038/nature10896. PMID: 22437499

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