Chatwell, L., Krojer, T., Fidler, A., Romisch, W., Eisenreich, W., Bacher, A., et al. (2006). Biosynthesis of riboflavin: Structure and properties of 2,5-diamino-6-ribosylamino-4(3H)-pyrimidinone 5 '-phosphate reductase of Methanocaldococcus jannaschii. Journal of Molecular Biology, 359(5), 1334-1351.