Tags: Enzyme.
In enzymology a nucleoside-triphosphate diphosphatase (EC 3.6.1.19) is an enzyme that catalyzes the chemical reactiona nucleoside triphosphate + H2O a nucleotide + diphosphateThus the two substrates of this enzyme are nucleoside triphosphate and H2O whereas its two products are nucleotide and diphosphate.This enzyme belongs to the family of hydrolases specifically those acting on acid anhydrides in phosphorus-containing anhydrides.