-ENZREV 1.5.1.3 -ENZIRREV 1.5.1.3 3.1.3.1 3.5.4.16 4.6.1.10 -METINT 5,6,7,8-Tetrahydrofolate NADP+ 7,8-dihydrofolate NADPH An_orthophosphoric_monoester an_alcohol phosphate GTP formate 2-amino-4-hydroxy-6-(erythro-1,2,3-trihydroxypropyl)dihydropteridine_triphosphate 6-(L-erythro-1,2-Dihydroxypropyl_3-triphosphate)-7,8-dihydropterin 6-(1,2-dioxopropyl)-5,6,7,8-tetrahydropterin triphosphate -METEXT H2O -CAT 1.5.1.3 : 5,6,7,8-Tetrahydrofolate + NADP+ = 7,8-dihydrofolate + NADPH . 3.1.3.1 : An_orthophosphoric_monoester + H2O = an_alcohol + phosphate . 3.5.4.16 : GTP + 2 H2O = formate + 2-amino-4-hydroxy-6-(erythro-1,2,3-trihydroxypropyl)dihydropteridine_triphosphate . 4.6.1.10 : 6-(L-erythro-1,2-Dihydroxypropyl_3-triphosphate)-7,8-dihydropterin = 6-(1,2-dioxopropyl)-5,6,7,8-tetrahydropterin + triphosphate .