2XH3:
reference: The structural characterization of a prophage-encoded extracellular DNase from Streptococcus pyogenes., Korczynska JE, Turkenburg JP, Taylor EJ, Nucleic Acids Res. 2011 Sep 24. PMID: 21948797

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