. "Cytosolic dihydropyrimidinase tetramer catalyzes the reaction of 5,6-dihydrouracil and water to form 3-ureidopropionate (Hamajima et al. 1998)."^^ . . . . . . "5,6-dihydrouracil + H2O => beta-ureidopropionate"^^ . "conversion of 5,6-dihydrouracil to 3-ureidopropionate"^^ . "3.5.2.2"^^ . . . . . . .