1NZG:
reference: 2'-O-[2-[2-(N,N-dimethylamino)ethoxy]ethyl] modified oligonucleotides: symbiosis of charge interaction factors and stereoelectronic effects., Prhavc M, Prakash TP, Minasov G, Cook PD, Egli M, Manoharan M, Org Lett 2003 Jun 12;5(12):2017-20. PMID: 12790517

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