Biotin-VAD-FMK 

Biotin-VAD-FMK is a cell permeable, irreversible biotin-labeled caspase inhibitor, used to identify active caspases in cell lysates.

Biotin-VAD-FMK is a synthetic peptide designed as a methyl ester to facilitate cell permeability.

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

To examine whether caspase-2 is activated in the absence of proteolytic cleavage, an in vivo affinity labeling approach is used, using the biotinylated caspase inhibitor biotin-VAD-fmk that detects only active caspases^[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

672.81

C₃₀H₄₉FN₆O₈S

1135688-15-1

Solid

White to light yellow

COC(C[C@@H](C(CF)=O)NC([C@H](C)NC([C@H](C(C)C)NC(CCCCCNC(CCCC[C@@H]1SC[C@H](N2)[C@@H]1NC2=O)=O)=O)=O)=O)=O

Room temperature in continental US; may vary elsewhere.

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

• [1]. Li J, et al. Nitric oxide suppresses apoptosis via interrupting caspase activation and mitochondrial dysfunction in cultured hepatocytes. J Biol Chem. 1999 Jun 11;274(24):17325-33.  [Content Brief]

  [2]. Samraj AK, et al. Loss of caspase-9 reveals its essential role for caspase-2 activation and mitochondrial membranedepolarization. Mol Biol Cell. 2007 Jan;18(1):84-93.  [Content Brief]