4I16:
reference: Structural insights into the assembly of CARMA1 and BCL10., Li S, Yang X, Shao J, Shen Y, PLoS One. 2012;7(8):e42775. doi: 10.1371/journal.pone.0042775. Epub 2012 Aug 3. PMID: 22880103

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