Caspase-5 Inhibitor Drug Screening Kit (Fluorometric)

Caspases have been shown to play a crucial role in apoptosis induced by various deleterious and physiologic stimuli. Inhibition of caspases can delay apoptosis, implicating a potential role in drug screening efforts. The Caspase-5 Inhibitor Drug Screening Kit provides an effective means for screening caspase inhibitors using fluorometric methods. The assay utilizes synthetic peptide substrate WEHD-AFC (AFC, 7-amino-4-trifluoromethyl coumarin). Active caspase-5 cleaves the synthetic substrate to release free AFC which can then be quantified by fluorometry. Compounds to be screened can directly be added to the reaction and the level of inhibition of caspase-5 activity can be determined by comparison of the fluorescence intensity in samples with and without the testing inhibitors.

• Detection method: Fluorescence (Ex/Em 400/505) • Species reactivity: Mammalian • Kit size: 100 assays • Applications: Effective means for screening caspase inhibitors using fluorometric methods.

• Simple one-step procedure; takes only 1-1.5 hours • Fast and convenient • Inhibition of caspase-5 activity can be determined by comparison of the fluorescence intensity in samples with and without the testing inhibitors.

Apoptosis Assay Kit

none

• 2X Reaction Buffer • Caspase Substrate WEHD-AFC (1 mM) • DTT (1 M) • Active Caspase-5 (Lyophilized) • Caspase Inhibitor, Z-VAD-FMK (2 mM)

-20°C

gel pack

6-12 months

see datasheet

Detect early/middle stages of apoptosis; differentiate apoptosis from necrosis.

Cell samples treated with Caspase inhibitor drugs

Human and some mouse caspases are active in apoptosis and cell death and even in necrosis and inflammation. CASP Gene and orthologous enzymes have been identifies successfully in the signal transduction cascade and pathways.Tissue, pathway, proteinase, peptidase, protease ,acrosin, lipoprotein, activator, caspase, trypsin, papain, esterase inhibitors are proteins or receptor ligands or receptor antagonists that bind to an enzyme receptor and decreases its activity. Since blocking an enzyme's activity can kill a pathogen or correct a metabolic imbalance, many drugs are enzyme inhibitors. Not all receptor antagonist that bind to enzymes are inhibitors; enzyme activator ligands or agonists bind to enzymes and increase their enzymatic activity, while enzyme substrates bind and are converted to products in the normal catalytic cycle of the enzyme.