| 3NKB: reference: A 1.9 A crystal structure of the HDV ribozyme precleavage suggests both Lewis acid and general acid mechanisms contribute to phosphodiester cleavage., Chen JH, Yajima R, Chadalavada DM, Chase E, Bevilacqua PC, Golden BL, Biochemistry. 2010 Aug 10;49(31):6508-18. PMID: 20677830 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).