3W2V:
reference: Crystal Structure of the Cmr2-Cmr3 Subcomplex in the CRISPR-Cas RNA Silencing Effector Complex., Osawa T, Inanaga H, Numata T, J Mol Biol. 2013 Oct 23;425(20):3811-3823. doi: 10.1016/j.jmb.2013.03.042. Epub, 2013 Apr 10. PMID: 23583914

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