2HKC:
reference: Base-displaced intercalated structure of the food mutagen 2-amino-3-methylimidazo[4,5-f]quinoline in the recognition sequence of the NarI restriction enzyme, a hotspot for -2 bp deletions., Wang F, DeMuro NE, Elmquist CE, Stover JS, Rizzo CJ, Stone MP, J Am Chem Soc. 2006 Aug 9;128(31):10085-95. PMID: 16881637

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