1VLP:
reference: The structure of a eukaryotic nicotinic acid phosphoribosyltransferase reveals structural heterogeneity among type II PRTases., Chappie JS, Canaves JM, Han GW, Rife CL, Xu Q, Stevens RC, Structure. 2005 Sep;13(9):1385-96. PMID: 16154095

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