3R2J:
reference: The Leishmania nicotinamidase is essential for NAD+ production and parasite proliferation., Gazanion E, Garcia D, Silvestre R, Gerard C, Guichou J, Labesse G, Seveno M, Cordeiro-Da-Silva A, Ouaissi A, Sereno D, Vergnes B, Mol Microbiol. 2011 Aug 8. doi: 10.1111/j.1365-2958.2011.07799.x. PMID: 21819459

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