3VUQ:
reference: Structure and function of a TetR family transcriptional regulator, SbtR, from Thermus thermophilus HB8., Agari Y, Sakamoto K, Yutani K, Kuramitsu S, Shinkai A, Proteins. 2013 Feb 14. doi: 10.1002/prot.24266. PMID: 23408580

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