4BWK:
reference: Structure of the PAN3 Pseudokinase Reveals the Basis for Interactions with the PAN2 Deadenylase and the GW182 Proteins., Christie M, Boland A, Huntzinger E, Weichenrieder O, Izaurralde E, Mol Cell. 2013 Aug 8;51(3):360-73. doi: 10.1016/j.molcel.2013.07.011. PMID: 23932717

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