1FN2:
reference: A novel form of intercalation involving four DNA duplexes in an acridine-4-carboxamide complex of d(CGTACG)(2)., Adams A, Guss JM, Collyer CA, Denny WA, Wakelin LP, Nucleic Acids Res 2000 Nov 1;28(21):4244-53. PMID: 11058124

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