3WZI:
reference: Crystal structures of CRISPR-associated Csx3 reveal a manganese-dependent deadenylation exoribonuclease., Yan X, Guo W, Yuan YA, RNA Biol. 2015 Jun 24:0. PMID: 26106927

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