2BKJ:
reference: Unusual folded conformation of nicotinamide adenine dinucleotide bound to flavin reductase P., Tanner JJ, Tu SC, Barbour LJ, Barnes CL, Krause KL, Protein Sci 1999 Sep;8(9):1725-32. PMID: 10493573

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