3N9D:
reference: Structure of bacterial LigD 3'-phosphoesterase unveils a DNA repair superfamily., Nair PA, Smith P, Shuman S, Proc Natl Acad Sci U S A. 2010 Jul 20;107(29):12822-7. Epub 2010 Jun 29. PMID: 20616014

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