| 2ELG: reference: The rare crystallographic structure of d(CGCGCG)(2): the natural spermidine molecule bound to the minor groove of left-handed Z-DNA d(CGCGCG)(2) at 10 degrees C., Ohishi H, Tozuka Y, Da-Yang Z, Ishida T, Nakatani K, Biochem Biophys Res Commun. 2007 Jun 22;358(1):24-8. Epub 2007 Apr 17. PMID: 17467661 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).