Nucleoside
permease nupG
Nucleoside
permease nupG
Cytidine
deaminase
uridine
phosphorylase
Phosphopentomutase
Cytidine
Cytidine
H
+
H
+
Uridine
Uridine
H
+
H
+
Cytidine
H
+
H
2
O
Uridine
Ammonium
P
i
Uracil
Ribose
1-phosphate
D-Ribose
5-phosphate
Magnesium