Didehydrofarnesyl diphosphate: an intrinsically fluorescent inhibitor of protein farnesyltransferase

Bioorg Med Chem Lett. 2004 May 3;14(9):2137-40. doi: 10.1016/j.bmcl.2004.02.077.

Abstract

Didehydrofarnesyl diphosphate (delta delta FPP), a fluorescent pentaene analogue of farnesyl diphosphate (FPP), was synthesized using stereoselective Wittig reactions. Although delta delta FPP was not an alternative substrate for yeast protein farnesyltransferase (FTase), the fluorescent analogue was a potent competitive inhibitor with a K(i) value of 8.8 microM (K (m) (FPP) = 27 microM).

Publication types

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

MeSH terms

  • Alkyl and Aryl Transferases / antagonists & inhibitors*
  • Enzyme Inhibitors / pharmacology*
  • Fluorescent Dyes / pharmacology*
  • Polyisoprenyl Phosphates / chemistry
  • Polyisoprenyl Phosphates / pharmacology*
  • Sesquiterpenes

Substances

  • Enzyme Inhibitors
  • Fluorescent Dyes
  • Polyisoprenyl Phosphates
  • Sesquiterpenes
  • farnesyl pyrophosphate
  • Alkyl and Aryl Transferases
  • p21(ras) farnesyl-protein transferase