3GC3:
reference: Structure of an arrestin2-clathrin complex reveals a novel clathrin binding domain that modulates receptor trafficking., Kang DS, Kern RC, Puthenveedu MA, von Zastrow M, Williams JC, Benovic JL, J Biol Chem. 2009 Oct 23;284(43):29860-72. Epub 2009 Aug 25. PMID: 19710023

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