2P6J:
reference: Full-sequence Computational Design and Solution Structure of a Thermostable Protein Variant., Shah PS, Hom GK, Ross SA, Lassila JK, Crowhurst KA, Mayo SL, J Mol Biol. 2007 Jun 16;. PMID: 17628593

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