| UCR07280 | 5-amino-6-(5-phosphoribitylamino)uracil + H(2)O = 5-amino-6-(D-ribitylamino)uracil + phosphate | None - {{∅}} | None - {{∅}} | Unexplained |  | 
                
                    | UCR00425 | GTP + 3 H(2)O = 2,5-diamino-4-hydroxy-6-(5-phosphoribosylamino)pyrimidine + diphosphate + formate | True - {{t}} | True - {{t}} | Confirmed presence |  | 
                
                    | VariantPath-2-UPA00275 |  | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | UCR04457 | 2-hydroxy-3-oxobutyl phosphate + 5-amino-6-(D-ribitylamino)uracil = 6,7-dimethyl-8-(1-D-ribityl)lumazine + 2 H(2)O + phosphate | True - {{t}} | True - {{t}} | Confirmed presence |  | 
                
                    | UER00404 | riboflavin from 2-hydroxy-3-oxobutyl phosphate and 5-amino-6-(D-ribitylamino)uracil: step 1/2~1 2-hydroxy-3-oxobutyl phosphate + 1 5-amino-6-(D-ribitylamino)uracil => 1 6,7-dimethyl-8-(1-D-ribityl)lumazine + 2 H(2)O + 1 phosphate. | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | UER00399 | 2-hydroxy-3-oxobutyl phosphate from D-ribulose 5-phosphate: step 1/1~1 D-ribulose 5-phosphate => 1 2-hydroxy-3-oxobutyl phosphate + 1 formate. | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | ULS00188 | 2-hydroxy-3-oxobutyl phosphate from D-ribulose 5-phosphate | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | UER00402 | 5-amino-6-(D-ribitylamino)uracil from GTP: step 3/4~1 5-amino-6-(5-phosphoribosylamino)uracil + 1 H(+) + 1 NADPH => 1 5-amino-6-(5-phosphoribitylamino)uracil + 1 NADP(+). | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | UER00405 | riboflavin from 2-hydroxy-3-oxobutyl phosphate and 5-amino-6-(D-ribitylamino)uracil: step 2/2~2 6,7-dimethyl-8-(1-D-ribityl)lumazine => 1 5-amino-6-(D-ribitylamino)uracil + 1 riboflavin. | True - {{t}} | True - {{t}} | Confirmed presence |  | 
                
                    | UCR03459 | 2,5-diamino-4-hydroxy-6-(5-phosphoribosylamino)pyrimidine + H(2)O = 5-amino-6-(5-phosphoribosylamino)uracil + NH(3) | True - {{t}} | True - {{t}} | Confirmed presence |  | 
                
                    | UCR00066 | 2 6,7-dimethyl-8-(1-D-ribityl)lumazine = 5-amino-6-(D-ribitylamino)uracil + riboflavin | True - {{t}} | True - {{t}} | Confirmed presence |  | 
                
                    | ULS00499 | riboflavin from 2-hydroxy-3-oxobutyl phosphate and 5-amino-6-(D-ribitylamino)uracil | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | UCR07281 | D-ribulose 5-phosphate = 2-hydroxy-3-oxobutyl phosphate + formate | True - {{t}} | True - {{t}} | Confirmed presence |  | 
                
                    | UER00403 | 5-amino-6-(D-ribitylamino)uracil from GTP: step 4/4~1 5-amino-6-(5-phosphoribitylamino)uracil + 1 H(2)O => 1 5-amino-6-(D-ribitylamino)uracil + 1 phosphate. | None - {{∅}} | None - {{∅}} | Unexplained |  | 
                
                    | ULS00189 | 5-amino-6-(D-ribitylamino)uracil from GTP | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | UER00401 | 5-amino-6-(D-ribitylamino)uracil from GTP: step 2/4~1 2,5-diamino-4-hydroxy-6-(5-phosphoribosylamino)pyrimidine + 1 H(2)O => 1 5-amino-6-(5-phosphoribosylamino)uracil + 1 NH(3). | True - {{t}} | True - {{t}} | Confirmed presence |  | 
                
                    | VariantPath-1-UPA00275 |  | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | UPA00275 | riboflavin biosynthesis~Biosynthesis of riboflavin (vitamin B2), the universal precursor of flavocoenzymes. It is biosynthesized by plants and many microorganisms but must be obtained from dietary sources by animals. | None - {{∅}} | True - {{t}} | Unconfirmed presence |  | 
                
                    | UER00400 | 5-amino-6-(D-ribitylamino)uracil from GTP: step 1/4~1 GTP + 3 H(2)O => 1 2,5-diamino-4-hydroxy-6-(5-phosphoribosylamino)pyrimidine + 1 diphosphate + 1 formate. | True - {{t}} | True - {{t}} | Confirmed presence |  | 
                
                    | UCR03458 | 5-amino-6-(5-phosphoribitylamino)uracil + NADP(+) = 5-amino-6-(5-phosphoribosylamino)uracil + H(+) + NADPH | True - {{t}} | True - {{t}} | Confirmed presence |  |