2D6Y:
reference: SCO4008, a Putative TetR Transcriptional Repressor from Streptomyces coelicolor A3(2), Regulates Transcription of sco4007 by Multidrug Recognition., Hayashi T, Tanaka Y, Sakai N, Okada U, Yao M, Watanabe N, Tamura T, Tanaka I, J Mol Biol. 2013 Sep 23;425(18):3289-300. doi: 10.1016/j.jmb.2013.06.013. Epub, 2013 Jul 2. PMID: 23831227

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