6GZ7:
reference: Structural and Kinetic Profiling of Allosteric Modulation of Duplex DNA Induced by DNA-Binding Polyamide Analogues., Burley G, Padroni G, Parkinson J, Welte T, Chemistry. 2018 Nov 8. doi: 10.1002/chem.201805338. PMID: 30407668

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