Tags: Enzyme.
In enzymology a guanosine-5′-triphosphate3′-diphosphate diphosphatase (EC 3.6.1.40) is an enzyme that catalyzes the chemical reactionguanosine 5′-triphosphate3′-diphosphate + H2O guanosine 5′-diphosphate3′-diphosphate + phosphateThus the two substrates of this enzyme are guanosine 5′-triphosphate3′-diphosphate and H2O whereas its two products are guanosine 5′-diphosphate3′-diphosphate and phosphate.This enzyme belongs to the family of hydrolases specifically those acting on acid anhydrides in phosphorus-containing anhydrides.