CATH Classification

Domain Context

CATH Clusters

Superfamily Nucleoside Triphosphate Pyrophosphohydrolase
Functional Family 7,8-dihydro-8-oxoguanine triphosphatase

Enzyme Information

3.6.1.56
2-hydroxy-dATP diphosphatase.
based on mapping to UniProt P53368
2-hydroxy-dATP + H(2)O = 2-hydroxy-dAMP + diphosphate.
-!- The enzyme hydrolyzes oxidized purine nucleoside triphosphates such as 2-hydroxy-dATP, thereby preventing their misincorporation into DNA. -!- It can also recognize 8-oxo-dGTP and 8-oxo-dATP, but with lower efficiency (cf. EC 3.6.1.55).
3.6.1.55
8-oxo-dGTP diphosphatase.
based on mapping to UniProt P53368
8-oxo-dGTP + H(2)O = 8-oxo-dGMP + diphosphate.
-!- This enzyme hydrolyzes the phosphoanhydride bond between the alpha and beta phosphate of 8-oxoguanine-containing nucleoside di- and triphosphates thereby preventing misincorporation of the oxidized purine nucleoside triphosphates into DNA. -!- It does not hydrolyze 2-hydroxy-dATP (cf. EC 3.6.1.56).

UniProtKB Entries (1)

P53368
8ODP_MOUSE
Mus musculus
7,8-dihydro-8-oxoguanine triphosphatase

PDB Structure

PDB 5MZE
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal Structures and Inhibitor Interactions of Mouse and Dog MTH1 Reveal Species-Specific Differences in Affinity.
Narwal, M., Jemth, A.S., Gustafsson, R., Almlof, I., Warpman Berglund, U., Helleday, T., Stenmark, P.
Biochemistry
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