2-Deoxyuridine 5-triphosphate nucleotidohydrolase (dUTPase) catalyses the hydrolysis of dUTP to dUMP and pyrophosphate (EC:3.6.1.23). Members of this family have a novel all-alpha fold and are unrelated to the all-beta fold found in dUTPases of the majority of organisms [1]. This family contains both dUTPase homologues of dUTPase including dCTPase of phage T4.

1: The crystal structure of a complex of Campylobacter jejuni dUTPase with substrate analogue sheds light on the mechanism and suggests the "basic module" for dimeric d(C/U)TPases. Moroz OV, Harkiolaki M, Galperin MY, Vagin AA, Gonzalez-Pacanowska D, Wilson KS; J Mol Biol. 2004;342:1583-1597. PMID:15364583