4XR7:
reference: The structure of the Pan2-Pan3 core complex reveals cross-talk between deadenylase and pseudokinase., Schafer IB, Rode M, Bonneau F, Schussler S, Conti E, Nat Struct Mol Biol. 2014 Jun 1. doi: 10.1038/nsmb.2834. PMID: 24880344

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