4BZK:
reference: The structure of the COPII transport-vesicle coat assembled on membranes., Zanetti G, Prinz S, Daum S, Meister A, Schekman R, Bacia K, Briggs JA, Elife. 2013 Sep 17;2:e00951. doi: 10.7554/eLife.00951. PMID: 24062940

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