Term Name: | 8-oxo-7,8-dihydrodeoxyguanosine triphosphate pyrophosphatase activity |
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Synonyms: | 8-oxo-7,8-dihydro-2'-deoxyguanosine 5'-triphosphate pyrophosphohydrolase activity, 8-oxo-7,8-dihydro-deoxyguanosine triphosphate pyrophosphatase activity, 8-oxo-7,8-dihydrodeoxyguanosine triphosphatase activity, 8-oxo-dGTP pyrophosphohydrolase activity, 8-oxo-dGTPase activity |
Definition: | Catalysis of the reaction: 8-oxo-7,8-dihydrodeoxyguanosine-triphosphate (8-oxo-dGTP) + H2O = 8-oxo-7,8-dihydrodeoxyguanosine phosphate (8-oxo-dGMP) + diphosphate. 8-oxo-dGTP is the oxidised form of the free guanine nucleotide and can act as a potent mutagenic substrate for DNA synthesis causing transversion mutations. 8-oxo-dGTPase hydrolyses 8-oxo-dGTP to its monophosphate form to prevent the misincorporation of 8-oxo-dGTP into cellular DNA. |
Ontology: | GO: Molecular Function [GO:0035539] QuickGO AmiGO |