Figure 1. Terminal reactions of the pathway of riboflavin biosynthesis. 1, 5-amino-6-ribitylamino-2,4(1H,3H)-pyrimidinedione; 2, 3,4-dihydroxy-2-butanone 4-phosphate; 3, 6,7-dimethyl-8-ribityllumazine; 4, riboflavin.
The above figure is reprinted by permission from the ASBMB: J Biol Chem (2006, 281, 1224-1232) copyright 2006.
