Protein Domain : NTP pyrophosphohydrolase, DR2231-like IPR033653

Type	Family
Description	This family includes a MazG-like NTP-PPase from Deinococcus radiodurans (DR2231), a putative NTP-PPase YP_001813558.1 from Exiguobacterium sibiricum and their bacterial homologues. DR2231 shows significant structural resemblance to MazG proteins, but is functionally related to the dimeric dUTPases [ , ]. It can hydrolyze dUTP into dUMP. DR2231-like proteins contain a well conserved divalent ion binding motif, EXXEX(12-28)EXXD, which is the identity signature for the all-α-helical NTP-PPase superfamily. Unlike normal dimeric dUTPase-like proteins with a central four-helix bundle forming the active site, YP_001813558.1 displays a very unusual interlaced segment-swapped dimer. It potentially prefers to hydrolyze dCTPs or its derivatives. YP_001813558.1-like proteins contain a variant divalent ion binding motif, EXXEX(12-28)AXXD [].
Short Name	NTP-PPase_DR2231-like