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474008 FAM-FLICA® Caspase 1 BioAssay™ Kit

Specifications
References
Brand
BioAssay™
Kit Type
Assay
Tests
25100
Detection Method
Fluorescent
Sample Matrix
Cell culture
EU Commodity Code
38220000
Shipping Temp
Blue Ice
Storage Temp
4°C/-20°C

The FAM FLICA Caspase-1 BioAssay™ Kit is an in vitro assay employs the fluorescent inhibitor probe FAM-YVAD-FMK to label active caspase-1 enzyme in living cells. Analyze samples using fluorescence microscopy, a fluorescence plate reader, or flow cytometry.

Test Principle
Caspases play important roles in apoptosis and inflammation. This FLICA BioAssay™ kits are used by researchers seeking to quantitate apoptosis via caspase activity in cultured cells and tissues. The FAM FLICA Caspase-1 probe allows researchers to assess caspase-1 activation.
The FLICA reagent FAM-YVAD-FMK enters each cell and irreversibly binds to activated caspase-1. Because the FAM-YVAD-FMK FLICA reagent becomes covalently coupled to t1x14x1 vialshe active enzyme, it is retained within the cell, while any unbound FAM-YVAD-FMK FLICA reagent diffuses out of the cell and is washed away. The remaining green fluorescent signal is a direct measure of the active caspase-1 enzyme activity present in the cell at the time the reagent was added. Cells that contain the bound FLICA can be analyzed by a fluorescence plate reader, fluorescence microscopy, or flow cytometry. Cells labeled with the FLICA reagent may be read immediately or preserved for 16 hours using the fixative included in the BioAssay™ kit. Unfixed samples may also be analyzed with Propidium Iodide or Hoechst 33342 to detect necrosis or changes in nuclear morphology, respectively.
Excitation/Emission
488-492nm/515-535nm
Kit Components
*474008A: FLICA Caspase Inhibitor Reagent, 1x1 vial or 4x1 vials 474008B: Apoptosis Wash Buffer, 10X, 1x15ml or 1x60ml 474008C: Fixative, 1x6ml 474008D: Propidium Iodide, 250ug/ml, 1x1ml 474008E: Hoechst 33342, 200ug/ml, 1x1ml
Storage and Stability
Store *474008A at 4°C. After reconstitution store at -20°C. Store other components at 4°C. Stable for 6 months For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
References
1. Amstad, P. A. et al. Detection of caspase activation in situ by fluorochrome-labeled caspase inhibitors. Biotechniques 31, 608- 610, 612, 614, passim (2001). 2. Bedner, E., Smolewski, P., Amstad, P. & Darzynkiewicz, Z. Activation of caspases measured in situ by binding of fluorochromelabeled inhibitors of caspases (FLICA): correlation with DNA fragmentation. Exp Cell Res 259, 308-313, doi:10.1006/excr.2000.4955 (2000). 3. Slee, E. A., Adrain, C. & Martin, S. J. Serial killers: ordering caspase activation events in apoptosis. Cell Death Differ 6, 1067- 1074, doi:10.1038/sj.cdd.4400601 (1999). 4. Shamaa, O. R., Mitra, S., Gavrilin, M. A. & Wewers, M. D. Monocyte Caspase-1 Is Released in a Stable, Active High Molecular Weight Complex Distinct from the Unstable Cell Lysate-Activated Caspase-1. PLoS One 10, e0142203, doi:10.1371/journal. pone.0142203 (2015). 5. Mariathasan, S. et al. Diff erential activation of the inflammasome by caspase-1 adaptors ASC and Ipaf. Nature 430, 213-218, doi:10.1038/nature02664 (2004). 6. Kumar, S. Mechanisms mediating caspase activation in cell death. Cell Death Differ 6, 1060-1066, doi:10.1038/sj.cdd.4400600 (1999). 7. Rotonda, J. et al. The three-dimensional structure of apopain/ CPP32, a key mediator of apoptosis. Nat Struct Biol 3, 619-625 (1996). 8. Walker, N. P. et al. Crystal structure of the cysteine protease interleukin-1 beta-converting enzyme: a (p20/p10)2 homodimer. Cell 78, 343-352 (1994). 9. Wilson, K. P. et al. Structure and mechanism of interleukin-1 beta converting enzyme. Nature 370, 270-275, doi:10.1038/370270a0 (1994). 10. Thornberry, N. A. et al. A combinatorial approach defines specificities of members of the caspase family and granzyme B. Functionalrelationships established for key
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