6GWM:
reference: CARD domain of rat RIP2 kinase: Refolding, solution structure, pH-dependent behavior and protein-protein interactions., Goncharuk SA, Artemieva LE, Tabakmakher VM, Arseniev AS, Mineev KS, PLoS One. 2018 Oct 23;13(10):e0206244. doi: 10.1371/journal.pone.0206244., eCollection 2018. PMID: 30352081

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