D-Ribulose 5-phosphate → Formic acid + L-3,4-Dihydroxybutan-2-one 4-phosphate
Guanosine triphosphate + 3 Water → 2,5-Diamino-6-(5-phospho-D-ribosylamino)pyrimidin-4(3H)-one + Formic acid + Pyrophosphate
2,5-Diamino-6-(5-phospho-D-ribosylamino)pyrimidin-4(3H)-one + Water → 5-Amino-6-(5'-phosphoribosylamino)uracil + Ammonia
5-Amino-6-(5'-phospho-D-ribitylamino)uracil + NADP ← 5-Amino-6-(5'-phosphoribosylamino)uracil + Hydrogen Ion + NADPH
Flavin Mononucleotide + Water → Phosphate + Riboflavin
5-Amino-6-(D-ribitylamino)uracil + L-3,4-Dihydroxybutan-2-one 4-phosphate → 6,7-Dimethyl-8-(1-D-ribityl)lumazine + Phosphate + 2 Water
6,7-dimethyl-8-ribityllumazine synthase, chloroplastic
Bifunctional riboflavin kinase/FMN phosphatase
Monofunctional riboflavin biosynthesis protein RIBA 2, chloroplastic
Riboflavin biosynthesis protein PYRD, chloroplastic
Flavin mononucleotide hydrolase 1, chloroplatic
Riboflavin biosynthesis protein PYRR, chloroplastic
2 6,7-Dimethyl-8-(1-D-ribityl)lumazine → 5-Amino-6-(D-ribitylamino)uracil + Riboflavin
Adenosine triphosphate + Riboflavin → Adenosine diphosphate + Flavin Mononucleotide
FAD + Water → Adenosine monophosphate + Flavin Mononucleotide
5-Amino-6-(5'-phospho-D-ribitylamino)uracil + Water → 5-Amino-6-(D-ribitylamino)uracil + Phosphate