1VJ4:
reference: Sequence-dependent conformation of an A-DNA double helix. The crystal structure of the octamer d(G-G-T-A-T-A-C-C)., Shakked Z, Rabinovich D, Kennard O, Cruse WB, Salisbury SA, Viswamitra MA, J Mol Biol 1983 May 15;166(2):183-201. PMID: 6854642

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