Interference with HIV-1 reverse transcriptase-catalyzed DNA chain elongation by the 5'-triphosphate of the carbocyclic analog of 2'-deoxyguanosine.

Academic Article

Abstract

  • In an effort to better understand features in nucleotide analogs that result in the inhibition of HIV-1 reverse transcriptase, we have evaluated this enzyme with the 5'-triphosphate of the carbocyclic analog of 2'-deoxyguanosine (CdG-TP). CdG-TP was a reasonably potent competitive inhibitor of the incorporation of dGTP into DNA by HIV-1 reverse transcriptase using either a RNA or DNA template (Ki, 1 microM). CdG-TP was a good substrate for HIV-1 reverse transcriptase on both templates, but the DNA chain was poorly extended beyond the incorporation of CdG. These results indicate that substitution of ribose with a cyclopentane ring in nucleotides is not well tolerated by HIV-1 reverse transcriptase.
  • Published In

  • Antiviral Research  Journal
  • Keywords

  • Antiviral Agents, Base Sequence, DNA, Viral, Deoxyguanine Nucleotides, HIV Reverse Transcriptase, HIV-1, Molecular Sequence Data, Reverse Transcriptase Inhibitors, Templates, Genetic
  • Author List

  • Parker WB; White EL; Shaddix SC; Ross LJ; Shannon WM; Secrist JA
  • Start Page

  • 325
  • End Page

  • 332
  • Volume

  • 19
  • Issue

  • 4