. "Catalysis of the reaction: dGTP + H(2)O = 2'-deoxyguanosine + 2 H(+) + triphosphate." . . "dGTPase activity" . "deoxy-GTPase activity" . "deoxyguanosine 5-triphosphate triphosphohydrolase activity" . "deoxyguanosine triphosphatase activity" . "deoxyguanosine triphosphate triphosphohydrolase activity" . "deoxyguanosinetriphosphate triphosphohydrolase activity" . "dGTP triphosphohydrolase activity" . . .