3LHA:
reference: Assembly and solution structure of the core retromer protein complex., Norwood SJ, Shaw DJ, Cowieson NP, Owen DJ, Teasdale RD, Collins BM, Traffic. 2010 Sep 28. doi: 10.1111/j.1600-0854.2010.01124.x. PMID: 20875039

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