label: D-ribose 5-phosphate + ATP => 5-phospho-alpha-D-ribose 1-diphosphate (PRPP) + adenosine 5'-monophosphate (Dictyostelium discoideum)
label_lc: d-ribose 5-phosphate + atp => 5-phospho-alpha-d-ribose 1-diphosphate (prpp) + adenosine 5'-monophosphate (dictyostelium discoideum)