Reagent and kit for determining isoprenylating activity and inhibition thereof

摘要

The invention provides an immobilised oligopeptide for detecting protein prenylation consisting of an oligopeptide containing the amino acid sequence Xad-Xac-Xab-Xaa-OH at its carboxyl-terminus, at least one of Xaa, Xab, Xac and Xad representing cysteine (Cys), said sequence being capable of acting as a substrate for a prenyl transferase catalysing protein prenylation, and being bonded to a solid carrier, preferably at its amino-terminus. The invention further provides a kit for detecting protein prenylation comprising a first immobilised oligopeptide as mentioned above and a second immobilised oligopeptide which differs from said first immobilised oligopeptide in that the cysteine residue is substituted by another amino acid. Also provided are antibodies against the prenylated oligopeptides.