5VJB:
reference: Structural basis for ligand binding to the guanidine-II riboswitch., Reiss CW, Strobel SA, RNA. 2017 Sep;23(9):1338-1343. doi: 10.1261/rna.061804.117. Epub 2017 Jun 9. PMID: 28600356

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