Dihydroneopterin triphosphate → Dyspropterin + PPPi
Guanosine triphosphate + Water → Dihydroneopterin triphosphate + Formic acid + Hydrogen Ion
7,8-dihydrolumazine + Pyrimidodiazepine → Aurodrosopterin + Water
Dyspropterin + 2 Glutathione → Oxidized glutathione + Pyrimidodiazepine + Water
Drosopterin and Aurodrosopterin Biosynthesis
7,8-dihydropterin + Pyrimidodiazepine → Drosopterin + Water
7,8-dihydropterin + Hydrogen Ion + Water → 7,8-dihydrolumazine + Ammonium
Guanosine ribonucleotides de novo biosynthesis