4EKF:
reference: Regulation of a viral proteinase by a peptide and DNA in one-dimensional space. III. atomic resolution structure of the nascent form of the adenovirus proteinase., Baniecki ML, McGrath WJ, Mangel WF, J Biol Chem. 2012 Oct 7. PMID: 23043139

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