Ac-Ile-Glu-Thr-Asp-pNA is a caspase-8 substrate that undergoes enzymatic binding and cleavage specifically at the Ile-Glu-Thr-Asp (IETD) peptide sequence. This cleavage results in the release of p-nitroalinide, which can be quantitatively measured using colorimetric detection at 405 nm. This measure serves as an indicator of caspase-8 enzyme activity.
A-176120 is a potent farnesyl pyrophosphate (FPP) analogues, it selectively inhibits farnesyltransferase. It has anti-angiogenic potential and may reduce H-ras NIH3T3 tumour growth.
FTI-2153 is a potent and highly selective farnesyltransferase (FTase) inhibitor (IC50: 1.4 nM). FTI-2153 is >3000-fold more potent at blocking H-Ras (IC50, 10 nM) than Rap1A processing.