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FAD biosynthesis
riboflavin biosynthesis (early stages)
D-ribulose 5-phosphate biosynthesis
EC 1.5.1.30 flavin reductase (NADPH)
EC 1.5.1.41 riboflavin reductase [NAD(P)H]
EC 2.5.1.9 riboflavin synthase (mechanism)
EC 2.5.1.78 6,7-dimethyl-8-ribityllumazine synthase (mechanism)
EC 4.1.99.12 3,4-dihydroxy-2-butanone-4-phosphate synthase (mechanism)