Adenosine-tetraphosphatase

In enzymology, an adenosine-tetraphosphatase (EC 3.6.1.14) is an enzyme that catalyzes the chemical reaction

adenosine-tetraphosphatase
Identifiers
EC no.3.6.1.14
CAS no.37289-26-2
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
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PMCarticles
PubMedarticles
NCBIproteins
adenosine 5'-tetraphosphate + H2O ATP + phosphate

Thus, the two substrates of this enzyme are adenosine 5'-tetraphosphate and H2O, whereas its two products are ATP and phosphate.

This enzyme belongs to the family of hydrolases, specifically those acting on acid anhydrides in phosphorus-containing anhydrides. The systematic name of this enzyme class is adenosine-tetraphosphate phosphohydrolase. This enzyme participates in purine metabolism.

Structural studies

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As of late 2007, only one structure has been solved for this class of enzymes, with the PDB accession code 2V7Q.

References

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  • Small GD, Cooper C (1966). "Purification and properties of nucleoside tetraphosphate hydrolase from rabbit muscle". Biochemistry. 5 (1): 14–26. doi:10.1021/bi00865a003. PMID 4287215.