a nucleoside 5'-phosphate + ATP = a 5'-phosphonucleoside 3'-diphosphate + AMP + H(+)
a nucleoside 5'-phosphate + atp = a 5'-phosphonucleoside 3'-diphosphate + amp + h(+)
"nucleotide pyrophosphokinase"
"nucleotide pyrophosphokinase"