5TED:
reference: Shikimate Induced Transcriptional Activation of Protocatechuate Biosynthesis Genes by QuiR, a LysR-Type Transcriptional Regulator, in Listeria monocytogenes., Prezioso SM, Xue K, Leung N, Gray-Owen SD, Christendat D, J Mol Biol. 2018 Mar 9. pii: S0022-2836(18)30125-6. doi:, 10.1016/j.jmb.2018.03.003. PMID: 29530613

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