1KN6:
reference: Solution structure of the pro-hormone convertase 1 pro-domain from Mus musculus., Tangrea MA, Bryan PN, Sari N, Orban J, J Mol Biol 2002 Jul 19;320(4):801-12. PMID: 12095256

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