1FTD:
reference: A new class of symmetric bisbenzimidazole-based DNA minor groove-binding agents showing antitumor activity., Mann J, Baron A, Opoku-Boahen Y, Johansson E, Parkinson G, Kelland LR, Neidle S, J Med Chem 2001 Jan 18;44(2):138-44. PMID: 11170623

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