2TRT:
reference: Structure of the Tet repressor-tetracycline complex and regulation of antibiotic resistance., Hinrichs W, Kisker C, Duvel M, Muller A, Tovar K, Hillen W, Saenger W, Science 1994 Apr 15;264(5157):418-20. PMID: 8153629

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