3QSU:
reference: Structural mechanism of Staphylococcus aureus Hfq binding to an RNA A-tract., Horstmann N, Orans J, Valentin-Hansen P, Shelburne SA 3rd, Brennan RG, Nucleic Acids Res. 2012 Sep 10. PMID: 22965117

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