| 1ANA: reference: Helix geometry and hydration in an A-DNA tetramer: IC-C-G-G., Conner BN, Yoon C, Dickerson JL, Dickerson RE, J Mol Biol 1984 Apr 25;174(4):663-95. PMID: 6726797 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).