4IN4:
reference: Small molecules inhibit the interaction of Nrf2 and the Keap1 Kelch domain through a non-covalent mechanism., Marcotte D, Zeng W, Hus JC, McKenzie A, Hession C, Jin P, Bergeron C, Lugovskoy A, Enyedy I, Cuervo H, Wang D, Atmanene C, Roecklin D, Vecchi M, Vivat V, Kraemer J, Winkler D, Hong V, Chao J, Lukashev M, Silvian L, Bioorg Med Chem. 2013 Jul 15;21(14):4011-9. doi: 10.1016/j.bmc.2013.04.019. Epub , 2013 Apr 19. PMID: 23647822

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