5HLI:
reference: Structural Insights into the Redox-Sensing Mechanism of MarR-Type Regulator AbfR., Liu G, Liu X, Xu H, Liu X, Zhou H, Huang Z, Gan J, Chen H, Lan L, Yang CG, J Am Chem Soc. 2017 Jan 23. doi: 10.1021/jacs.6b11438. PMID: 28086264

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