3DPG:
reference: The structure of SgrAI bound to DNA; recognition of an 8 base pair target., Dunten PW, Little EJ, Gregory MT, Manohar VM, Dalton M, Hough D, Bitinaite J, Horton NC, Nucleic Acids Res. 2008 Sep;36(16):5405-16. Epub 2008 Aug 13. PMID: 18701646

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