The enantioselectivity of the cellular deoxynucleoside kinases

Nucleosides Nucleotides. 1999 Apr-May;18(4-5):807-10. doi: 10.1080/15257779908041567.

Abstract

Cytosolic thymidine kinase (TK1) and deoxycytidine kinase (dCK) and the mitochondrial thymidine kinase (TK2) and deoxyguanosine kinase (dGK) phosphorylate deoxynucleosides and their analogs. Recombinant human TK1 only phosphorylated beta-D Thd, but recombinant TK2, dCK and dGK all phosphorylated equally well beta-D and beta-L as well as to some extent alpha-D and alpha-L deoxynucleosides.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Deoxycytidine Kinase / metabolism*
  • Humans
  • Phosphorylation
  • Phosphotransferases (Alcohol Group Acceptor) / metabolism*
  • Recombinant Proteins / metabolism
  • Stereoisomerism
  • Thymidine Kinase / metabolism*

Substances

  • Recombinant Proteins
  • Phosphotransferases (Alcohol Group Acceptor)
  • deoxyguanosine kinase
  • Thymidine Kinase
  • Deoxycytidine Kinase