6YAF:
reference: Architecture of the AP2/clathrin coat on the membranes of clathrin-coated vesicles., Kovtun O, Dickson VK, Kelly BT, Owen DJ, Briggs JAG, Sci Adv. 2020 Jul 22;6(30):eaba8381. doi: 10.1126/sciadv.aba8381. eCollection, 2020 Jul. PMID: 32743075

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