1EZN:
reference: Solution structure of a DNA three-way junction containing two unpaired thymidine bases. Identification of sequence features that decide conformer selection., van Buuren BN, Overmars FJ, Ippel JH, Altona C, Wijmenga SS, J Mol Biol 2000 Dec 1;304(3):371-83. PMID: 11090280

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