3GIB:
reference: Structure of Escherichia coli Hfq bound to polyriboadenylate RNA., Link TM, Valentin-Hansen P, Brennan RG, Proc Natl Acad Sci U S A. 2009 Nov 4. PMID: 19889981

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