|Application ||WB, IP|
|Calculated MW||55357 Da|
|Application & Usage||Western blotting (0.5-4 µg/ml) and immunoprecipitation (10 µg/ml). However, the optimal conditions should be determined individually. Detects the 10 kDa small subunit of caspase-8. The antibody does not detect the full-length of caspase-8.|
|Other Names||CASP8 , MGC78473 , CASP-8, MACH, procaspase-8, MCH5, ALPS2B, FLICE, CAP4, EC 220.127.116.11|
|Formulation||100 µg (200 µg/ml) affinity purified antibody in PBS containing 50% glycerol, 1% BSA, and 0.02% thimerosal.|
|Handling||The antibody solution should be gently mixed before use.|
|Reconstitution & Storage||-20 °C|
|Precautions||Caspase-8 Antibody (Clone C502S) is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Most upstream protease of the activation cascade of caspases responsible for the TNFRSF6/FAS mediated and TNFRSF1A induced cell death. Binding to the adapter molecule FADD recruits it to either receptor. The resulting aggregate called death- inducing signaling complex (DISC) performs CASP8 proteolytic activation. The active dimeric enzyme is then liberated from the DISC and free to activate downstream apoptotic proteases. Proteolytic fragments of the N-terminal propeptide (termed CAP3, CAP5 and CAP6) are likely retained in the DISC. Cleaves and activates CASP3, CASP4, CASP6, CASP7, CASP9 and CASP10. May participate in the GZMB apoptotic pathways. Cleaves ADPRT. Hydrolyzes the small-molecule substrate, Ac-Asp-Glu-Val-Asp-|-AMC. Likely target for the cowpox virus CRMA death inhibitory protein.|
|Tissue Location||Expressed in a wide variety of tissues. Highest expression in spleen, thymus, lung, liver and kidney Lower expression in heart, brain, testis and skeletal muscle|
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Caspase-8, a member of the caspase-family of proteases, plays a key role in mediating Fas (CD95) and TNF induced apoptosis. Caspase-8 is synthesized as inactive pro-enzyme and activation of the enzyme involves proteolytic cleavage that leads to the release of the active p18 and p10 subunits. Activated caspase-8 is able to cleave and activate downstream caspases, such as caspase-3, -6, -7 and a death agonist member of the Bcl-2/Bcl-xL family, Bid, leading to apoptosis.
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