4UQI:
reference: Clathrin adaptors. AP2 controls clathrin polymerization with a membrane-activated switch., Kelly BT, Graham SC, Liska N, Dannhauser PN, Honing S, Ungewickell EJ, Owen DJ, Science. 2014 Jul 25;345(6195):459-63. doi: 10.1126/science.1254836. PMID: 25061211

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