5IWH:
reference: Mechanism of endonuclease cleavage by the HigB toxin., Schureck MA, Repack A, Miles SJ, Marquez J, Dunham CM, Nucleic Acids Res. 2016 Jul 4. pii: gkw598. PMID: 27378776

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