4U9E:
reference: A designed supramolecular protein assembly with in vivo enzymatic activity., Song WJ, Tezcan FA, Science. 2014 Dec 19;346(6216):1525-8. doi: 10.1126/science.1259680. PMID: 25525249

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