3UQ8:
reference: Structure guided understanding of NAD+ recognition in bacterial DNA ligases., Lahiri SD, Mills S, Gu RF, Gao N, Walkup G, Karantzeni I, ACS Chem Biol. 2012 Jan 9. PMID: 22230472

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