2KMT:
reference: Structural and thermodynamic characterization of Vibrio fischeri CcdB., De Jonge N, Hohlweg W, Garcia-Pino A, Respondek M, Buts L, Haesaerts S, Lah J, Zangger K, Loris R, J Biol Chem. 2010 Feb 19;285(8):5606-13. Epub 2009 Dec 2. PMID: 19959472

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