Tags: Enzyme.
Nucleotide pyrophosphatase/phosphodiesterase (NPP) is a class of dimeric enzymes that catalyze the hydrolysis of phosphate diester bonds. NPP belongs to the alkaline phosphatase (AP) superfamily of enzymes. The NPP family of enzymes includes seven isoforms some of which prefer nucleotide substrates some of which prefer phospholipid substrates and others of which prefer substrates that have not yet been determined.