| 2MCI: reference: Polyaminooligonucleotide: NMR structure of duplex DNA containing a nucleoside with spermine residue, N-[4,9,13-triazatridecan-1-yl]-2'-deoxycytidine., Brzezinska J, Gdaniec Z, Popenda L, Markiewicz WT, Biochim Biophys Acta. 2013 Dec 20;1840(3):1163-1170. doi:, 10.1016/j.bbagen.2013.12.008. PMID: 24361616 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).