6U6C:
reference: Allosteric inhibitors of Mycobacterium tuberculosis tryptophan synthase., Michalska K, Chang C, Maltseva NI, Jedrzejczak R, Robertson GT, Gusovsky F, McCarren P, Schreiber SL, Nag PP, Joachimiak A, Protein Sci. 2020 Mar;29(3):779-788. doi: 10.1002/pro.3825. Epub 2020 Jan 20. PMID: 31930594

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