dGTPase
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The enzyme dGTPase (EC 3.1.5.1)[1][2] catalyzes the reaction
- dGTP + H2O deoxyguanosine + triphosphate
This enzyme belongs to the family of hydrolases, specifically those acting on triphosphoric monoester bonds. The systematic name is dGTP triphosphohydrolase. Other names in common use include deoxy-GTPase, deoxyguanosine 5-triphosphate triphosphohydrolase, deoxyguanosine triphosphatase, and deoxyguanosine triphosphate triphosphohydrolase. This enzyme participates in purine metabolism.
Structural studies
As of late 2007, 4 structures have been solved for this class of enzymes, with PDB accession codes 1HA3, 2C77, 2C78, and 2DQB.
References
- ^ Kornberg SR, Lehman IR, Bessman MJ, Simms ES, Kornberg A (1958). "Enzymatic cleavage of deoxyguanosine triphosphate to deoxyguanosine and tripolyphosphate". J. Biol. Chem. 233 (1): 159–62. PMID 13563461.
- ^ Seto D, Bhatnagar SK, Bessman MJ (1988). "The purification and properties of deoxyguanosine triphosphate triphosphohydrolase from E. coli". J. Biol. Chem. 263 (3): 1494–99. PMID 2826481.
