3P4H:
reference: Structures and activities of archaeal members of the LigD 3'-phosphoesterase DNA repair enzyme superfamily., Smith P, Nair PA, Das U, Zhu H, Shuman S, Nucleic Acids Res. 2011 Jan 5. PMID: 21208981

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