1KSX:
reference: Crystal structures of two intermediates in the assembly of the papillomavirus replication initiation complex., Enemark EJ, Stenlund A, Joshua-Tor L, EMBO J 2002 Mar 15;21(6):1487-96. PMID: 11889054

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