1-(5-phospho-beta-D-ribosyl)-ATP + H2O = 1-(5-phospho-beta-D-ribosyl)-5'-AMP + diphosphate + H(+)
1-(5-phospho-beta-d-ribosyl)-atp + h2o = 1-(5-phospho-beta-d-ribosyl)-5'-amp + diphosphate + h(+)
"phosphoribosyl-ATP diphosphatase"
"phosphoribosyl-atp diphosphatase"