2B0I:
reference: DNA structural similarity in the 2:1 complexes of the antitumor drugs trabectedin (Yondelis) and chromomycin A3 with an oligonucleotide sequence containing two adjacent TGG binding sites on opposing strands., Marco E, Gago F, Mol Pharmacol. 2005 Dec;68(6):1559-67. Epub 2005 Sep 8. PMID: 16150929

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