1P3N:
reference: Repacking the Core of T4 lysozyme by automated design., Mooers BH, Datta D, Baase WA, Zollars ES, Mayo SL, Matthews BW, J Mol Biol 2003 Sep 19;332(3):741-56. PMID: 12963380

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