1WKS:
reference: Solution structure of an RNA stem-loop derived from the 3' conserved region of eel LINE UnaL2., Baba S, Kajikawa M, Okada N, Kawai G, RNA 2004 Sep;10(9):1380-7. Epub 2004 Jul 23. PMID: 15273327

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