2KHY:
reference: NMR structure and dynamics of the Specifier Loop domain from the Bacillus subtilis tyrS T box leader RNA., Wang J, Henkin TM, Nikonowicz EP, Nucleic Acids Res. 2010 Jan 27. PMID: 20110252

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