The enzyme dGTPase (EC 3.1.5.1) catalyzes the reaction
This enzyme belongs to the family of hydrolases, specifically those acting on triphosphoric monoester bonds. The systematic name is dGTP triphosphohydrolase. Other names in common use include deoxy-GTPase, deoxyguanosine 5-triphosphate triphosphohydrolase, deoxyguanosine triphosphatase, and deoxyguanosine triphosphate triphosphohydrolase. This enzyme participates in purine metabolism.
As of late 2007, 4 structures have been solved for this class of enzymes, with PDB accession codes , , , and .