Adenosine-tetraphosphatase

{{Short description|Class of enzymes}}

{{infobox enzyme

| Name = adenosine-tetraphosphatase

| EC_number = 3.6.1.14

| CAS_number = 37289-26-2

| GO_code = 0047624

| image =

| width =

| caption =

}}

In enzymology, an adenosine-tetraphosphatase ({{EC number|3.6.1.14}}) is an enzyme that catalyzes the chemical reaction

:adenosine 5'-tetraphosphate + H₂O $\backslash rightleftharpoons$ ATP + phosphate

Thus, the two substrates of this enzyme are adenosine 5'-tetraphosphate and H₂O, whereas its two products are ATP and phosphate.

This enzyme belongs to the family of hydrolases, specifically those acting on acid anhydrides in phosphorus-containing anhydrides. The systematic name of this enzyme class is adenosine-tetraphosphate phosphohydrolase. This enzyme participates in purine metabolism.