4J8T:
reference: Computational design of ligand-binding proteins with high affinity and selectivity., Tinberg CE, Khare SD, Dou J, Doyle L, Nelson JW, Schena A, Jankowski W, Kalodimos CG, Johnsson K, Stoddard BL, Baker D, Nature. 2013 Sep 12;501(7466):212-6. doi: 10.1038/nature12443. Epub 2013 Sep 4. PMID: 24005320

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