Reaction catalyzed by nicotinate phosphoribosyltransferase (6.3.4.21)
+
+
ATP
+
H2O
=
+
+
ADP
+
nicotinate
+
5-phospho-alpha-D-ribose 1-diphosphate
+
ATP
+
H2O
=
beta-nicotinate D-ribonucleotide
+
diphosphate
+
ADP
+
phosphate
