Description_x000D_ General description_x000D_ Apyrase, also known as ATP-diphosphohydrolase, is expressed in wide variety of plant and animal tissues. The commercially accessible apyrase enzyme is isolated from potato tubers._x000D_ Biochem/physiol Actions_x000D_ Apyrase hydrolyses the phosphoanhydride bonds of nucleoside tri- and di-phosphates in the presence of divalent cations. It has wide substrate specificity for nucleotides. This property of the enzyme makes it suitable for different biotechnical applications, including DNA sequencing and platelet-aggregation inhibition.