Deoxynucleoside kinase

deoxynucleoside kinase
Identifiers
EC number	2.7.1.145
CAS number	52227-81-3
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Gene Ontology	AmiGO / EGO
Search PMC articles PubMed articles

In enzymology, a deoxynucleoside kinase (EC 2.7.1.145) is an enzyme that catalyzes the chemical reaction

ATP + 2'-deoxynucleoside $\rightleftharpoons$ ADP + 2'-deoxynucleoside 5'-phosphate

Thus, the two substrates of this enzyme are ATP and 2'-deoxynucleoside, whereas its two products are ADP and 2'-deoxynucleoside 5'-phosphate.

This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with an alcohol group as acceptor. The systematic name of this enzyme class is ATP:deoxynucleoside 5'-phosphotransferase. Other names in common use include multispecific deoxynucleoside kinase, ms-dNK, multisubstrate deoxyribonucleoside kinase, multifunctional deoxynucleoside kinase, D. melanogaster deoxynucleoside kinase, and Dm-dNK.

Structural studies

As of late 2007, 5 structures have been solved for this class of enzymes, with PDB accession codes 1OE0, 1OT3, 1ZM7, 1ZMX, and 2JCS.

References

• Munch-Petersen B, Piskur J, Sondergaard L (1998). "Four deoxynucleoside kinase activities from Drosophila melanogaster are contained within a single monomeric enzyme, a new multifunctional deoxynucleoside kinase". J. Biol. Chem. 273 (7): 3926–31. doi:10.1074/jbc.273.7.3926. PMID 9461577. 
• Munch-Petersen B, Knecht W, Lenz C, Sondergaard L, Piskur J (2000). "Functional expression of a multisubstrate deoxyribonucleoside kinase from Drosophila melanogaster and its C-terminal deletion mutants". J. Biol. Chem. 275 (9): 6673–9. doi:10.1074/jbc.275.9.6673. PMID 10692477. 

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