4B8X:
reference: High resolution crystal structure of Sco5413, a widespread actinomycete MarR family transcriptional regulator of unknown function., Holley TA, Stevenson CE, Bibb MJ, Lawson DM, Proteins. 2012 Oct 8. doi: 10.1002/prot.24197. PMID: 23042442

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