1VFR:
reference: 1.8 A crystal structure of the major NAD(P)H:FMN oxidoreductase of a bioluminescent bacterium, Vibrio fischeri: overall structure, cofactor and substrate-analog binding, and comparison with related flavoproteins., Koike H, Sasaki H, Kobori T, Zenno S, Saigo K, Murphy ME, Adman ET, Tanokura M, J Mol Biol 1998 Jul 10;280(2):259-73. PMID: 9654450

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