3IYQ:
reference: tmRNA-SmpB: a journey to the centre of the bacterial ribosome., Weis F, Bron P, Giudice E, Rolland JP, Thomas D, Felden B, Gillet R, EMBO J. 2010 Nov 17;29(22):3810-8. Epub 2010 Oct 15. PMID: 20953161

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