2BCY:
reference: Water in the Active Site of an All-RNA Hairpin Ribozyme and Effects of Gua8 Base Variants on the Geometry of Phosphoryl Transfer(,)., Salter J, Krucinska J, Alam S, Grum-Tokars V, Wedekind JE, Biochemistry. 2006 Jan 24;45(3):686-700. PMID: 16411744

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