Synthesis and biological evaluation of lipophilic Ca(1)a(2)L analogues as potential bisubstrate inhibitors of protein:geranylgeranyl transferase-1

Bioorg Med Chem. 2005 Mar 1;13(5):1463-75. doi: 10.1016/j.bmc.2004.12.035.

Abstract

Ca(1)a(2)L analogues, having the central dipeptide a(1)a(2) replaced by a sugar amino acid, were provided at the N-terminal end directly or via a spacer with a lipid. The inhibitory potency toward PGGT-1 of the set of lipophilic Ca(1)a(2)L analogues was improved in comparison with the original analogues, 1 and 2. The most potent inhibitors, 39 and 40, were found to inhibit PGGT-1 with an IC(50)-value of 12.7 and 12.3 microM, respectively, which is a 6-fold improvement over the corresponding analogue 1.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkyl and Aryl Transferases / antagonists & inhibitors*
  • Dipeptides / chemical synthesis*
  • Dipeptides / chemistry
  • Dipeptides / pharmacology*
  • Enzyme Inhibitors / chemical synthesis*
  • Enzyme Inhibitors / chemistry
  • Enzyme Inhibitors / pharmacology*
  • Magnetic Resonance Spectroscopy
  • Mass Spectrometry
  • Substrate Specificity

Substances

  • Dipeptides
  • Enzyme Inhibitors
  • Alkyl and Aryl Transferases
  • geranylgeranyltransferase type-I