4ATO:
reference: Selectivity and self-assembly in the control of a bacterial toxin by an antitoxic noncoding RNA pseudoknot., Short FL, Pei XY, Blower TR, Ong SL, Fineran PC, Luisi BF, Salmond GP, Proc Natl Acad Sci U S A. 2012 Dec 24. PMID: 23267117

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