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DR_0179

Gene
DR_0179
Protein
dITP/XTP pyrophosphatase
Organism
Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / LMG 4051 / NBRC 15346 / NCIMB 9279 / R1 / VKM B-1422)
Length
200 amino acids
Function
Pyrophosphatase that catalyzes the hydrolysis of nucleoside triphosphates to their monophosphate derivatives, with a high preference for the non-canonical purine nucleotides XTP (xanthosine triphosphate), dITP (deoxyinosine triphosphate) and ITP. Seems to function as a house-cleaning enzyme that removes non-canonical purine nucleotides from the nucleotide pool, thus preventing their incorporation into DNA/RNA and avoiding chromosomal lesions.
Similarity
Belongs to the HAM1 NTPase family.
Mass
21.292 kDa
Sequence
MQQQTGGRRRQIRRVVVATSNAGKVRELQGALAPLGWQCEGLGAVTLPEETGSTYEENAALKACAAAMATGLPALADDSGIEVLALGGQPGVYSARFGNVNSDVERNVLLLEKMRRHTDRRAKFVSVLVLAYPDGKLEEYRGEVTGQLLEGPRGESGFGYDPLFLPDGSELSMGEMTLEQKQAISHRGQALAALLAAHGA