Deoxynucleoside kinase

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

ATP + 2'-deoxynucleoside 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.


  • IUBMB entry for
  • BRENDA references for (Recommended.)
  • PubMed references for
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  • Google Scholar references for
  • 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: 3926&ndash, 31. 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: 6673&ndash, 9. PMID 10692477.

External links

The CAS registry number for this enzyme class is 52227-81-3.

Gene Ontology (GO) codes