ENTRY       EC 2.4.2.20
NAME        Dioxotetrahydropyrimidine phosphoribosyltransferase
            Dioxotetrahydropyrimidine-ribonucleotide pyrophosphorylase
CLASS       Transferases
            Glycosyltransferases
            Pentosyltransferases
SYSNAME     2,4-Dioxotetrahydropyrimidine-nucleotide:pyrophosphate
            $ phospho-alpha-D-ribosyltransferase
REACTION    a 2,4-Dioxotetrahydropyrimidine D-ribonucleotide + Pyrophosphate =
            a 2,4-Dioxotetrahydropyrimidine +
            5-Phospho-alpha-D-ribose 1-diphosphate
SUBSTRATE   2,4-Dioxotetrahydropyrimidine D-ribonucleotide
            Pyrophosphate
PRODUCT     2,4-Dioxotetrahydropyrimidine
            5-Phospho-alpha-D-ribose 1-diphosphate
COMMENT     Acts (in the reverse direction) on uracil and other pyrimidines
            and pteridines containing a 2,4-diketo structure.
DBLINKS     University of Geneva ENZYME DATA BANK: 2.4.2.20
            WIT (What Is There) Metabolic Reconstruction: 2.4.2.20
///