5W1E:
reference: A peculiar IclR family transcription factor regulates para-hydroxybenzoate catabolism in Streptomyces coelicolor., Zhang R, Lord DM, Bajaj R, Peti W, Page R, Sello JK, Nucleic Acids Res. 2018 Feb 16;46(3):1501-1512. doi: 10.1093/nar/gkx1234. PMID: 29240934

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