The Enzyme Database

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EC 3.6.1.17     
Accepted name: bis(5′-nucleosyl)-tetraphosphatase (asymmetrical)
Reaction: P1,P4-bis(5′-guanosyl) tetraphosphate + H2O = GTP + GMP
Other name(s): bis(5′-guanosyl)-tetraphosphatase; bis(5′-adenosyl)-tetraphosphatase; diguanosinetetraphosphatase (asymmetrical); dinucleosidetetraphosphatase (asymmetrical); diadenosine P1,P4-tetraphosphatase; dinucleoside tetraphosphatase; 1-P,4-P-bis(5′-nucleosyl)-tetraphosphate nucleotidohydrolase
Systematic name: P1,P4-bis(5′-nucleosyl)-tetraphosphate nucleotidohydrolase
Comments: Also acts on bis(5′-xanthosyl)-tetraphosphate and, more slowly, on bis(5′-adenosyl)-tetraphosphate and bis(5′-uridyl)-tetraphosphate [cf. EC 3.6.1.41 bis(5′-nucleosyl)-tetraphosphatase (symmetrical)]
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 37289-29-5
References:
1.  Jakubowski, H. and Guranowski, A. Enzymes hydrolyzing ApppA and/or AppppA in higher plants. Purification and some properties of diadenosine triphosphatase, diadenosine tetraphosphatase, and phosphodiesterase from yellow lupin (Lupinus luteus) seeds. J. Biol. Chem. 258 (1983) 9982–9989. [PMID: 6309793]
2.  Vallejo, C.M., Lobatón, C.D., Quintanilla, M., Sillero, A. and Sillero, M.A.G. Dinucleosidasetetraphosphatase in rat liver and Artemia salina. Biochim. Biophys. Acta 438 (1976) 304–309. [PMID: 181087]
3.  Warner, A.H. and Finamore, F.J. Isolation, purification, and characterization of P1,P4-diguanosine 5′-tetraphosphate asymmetrical-pyrophosphohydrolase from brine shrimp eggs. Biochemistry 4 (1965) 1568–1575. [PMID: 4955726]
[EC 3.6.1.17 created 1972, modified 1976, modified 1986]
 
 


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