3C2H:
reference: The C. elegans SYS-1 protein is a bona fide beta-catenin., Liu J, Phillips BT, Amaya MF, Kimble J, Xu W, Dev Cell. 2008 May;14(5):751-61. PMID: 18477457

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