Specific effect of zinc ions on DNA polymerase activity of avian myeloblastosis virus

Mol Cell Biochem. 1978 Nov 1;21(2):67-9. doi: 10.1007/BF00240277.

Abstract

The effect of selected cations on DNA synthesis by DNA-polymerase of avian myeloblastosis virus (AMV) was studied. Zinc ions at low concentration (0.2mM) in the assay system enhanced the activity about 2 x fold and at higher concentration (2.0 mM) inhibited the activity completely. In contrast, addition of lithium and potassium salts produced inhibitory effects in this ionic concentration range. Replacement of K+ ion had an inhibitory effect on the activity.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Avian Leukosis Virus / enzymology*
  • Avian Myeloblastosis Virus / enzymology*
  • DNA / biosynthesis
  • DNA-Directed DNA Polymerase / metabolism*
  • Enzyme Activation
  • Lithium / pharmacology
  • Nucleic Acid Synthesis Inhibitors
  • Potassium / pharmacology
  • Zinc / administration & dosage
  • Zinc / pharmacology*

Substances

  • Nucleic Acid Synthesis Inhibitors
  • DNA
  • Lithium
  • DNA-Directed DNA Polymerase
  • Zinc
  • Potassium