2.5.1.147	5-amino-6-(D-ribitylamino)uracil + L-tyrosine + S-adenosyl-L-methionine	the enzyme is involved in the production of 7,8-didemethyl-8-hydroxy-5-deazariboflavin (FO), the precursor of the redox cofactor coenzyme F420	
2.5.1.147	5-amino-6-(D-ribitylamino)uracil + L-tyrosine + S-adenosyl-L-methionine	the reaction is catalzed by the bifunctional FO synthase (EC 2.5.1.147/EC 4.3.1.32)