2N0Q:
reference: Base-Displaced Intercalated Conformation of the 2-Amino-3-methylimidazo[4,5-f]quinoline N(2)-dG DNA Adduct Positioned at the Nonreiterated G(1) in the NarI Restriction Site., Stavros KM, Hawkins EK, Rizzo CJ, Stone MP, Chem Res Toxicol. 2015 Jul 20;28(7):1455-68. doi: 10.1021/acs.chemrestox.5b00140., Epub 2015 Jun 17. PMID: 26083477

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