Caspase 2 (ICH-1, Nedd2)

Caspases are a family of cysteine proteases that are key mediators of programmed cell death or apoptosis. The precursor form of all caspases is composed of a prodomain, and large and small catalytic subunits. The active forms of caspases are generated by several stimuli including ligand-receptor interactions, growth factor deprivation and inhibitors of cellular functions. All known caspases require cleavage adjacent to aspartates to liberate one large and one small subunit, which associate into a2b2 tetramer to form the active enzyme. Caspase-2 has a positive and a negative role in the regulation of the apoptotic process. Overexpression of the full Caspase-2 (Nedd2/Ich1 ) mRNA in some cell types results in apoptosis, whereas overexpression of an alternative Caspase-2 splice variant suppresses apoptosis induced by serum withdrawal. Caspase-2 may be activated in vitro by Caspase-1, Caspase-3 and the neutral serine protease granzyme B which is stored in the specialized lytic granules of cytotoxic lymphocytes.\n\nPositive Control: HL60\n\nApplications: \nSuitable for use in Western Blot. Other applications not tested.\n\nRecommended Dilution:\nOptimal dilutions to be determined by the researcher.\n\nStorage and Stability:\nMay be stored at 4 degrees C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot Store at -20 degrees C. Aliquots are stable for at least 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

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