Product Details
Alternative Name: | FLICE |
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Clone: | 5F7 |
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Host: | Mouse |
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Isotype: | IgG2b |
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Immunogen: | C-terminal fragment of recombinant human caspase-8 (amino acids 176-460). |
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UniProt ID: | Q14790 |
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Species reactivity: | Human
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Applications: | IHC (PS), IP, WB
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Recommended Dilutions/Conditions: | Immunoprecipitation (1:50) Western Blot (1µg/ml, ECL) Suggested dilutions/conditions may not be available for all applications. Optimal conditions must be determined individually for each application. |
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Application Notes: | Detects a band of ~55-57kDa by Western blot. Also detects the cleaved intermediate form (p41/43) and the activated large caspase-8 subunit p18 after apoptosis induction. |
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Purity Detail: | Protein A-affinity purified. |
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Formulation: | Liquid. In PBS, pH 7.2, containing 50% glycerol. |
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Shipping: | Blue Ice |
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Long Term Storage: | -20°C |
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Scientific Background: | Caspase-8/FADD-like ICE (FLICE), is an ~55 kDa cytosolic protein belonging to the Fas/APO-1/CD95 death-inducing signaling complex. Although researchers have defined eight different isoforms of caspase-8 at the mRNA level (8/a-h), significant expression of only Caspase-8/a and /b occurs at the protein level in a variety of cell lines. Caspase-8 contains two death effector domains (DEDs) and exhibits sequence homology to both FADD, a signal transducer of Fas-induced apoptosis, and to the ICE/CED-3 family of cysteine proteases. Caspase-8 binds to FADD through its amino terminal DEDs and induces apoptosis when overexpressed. Activation of Caspase-8 involves a two-step proteolysis whereby the cleavage of Caspase-8 generates a 43 kDa fragment (p43) and a 12 kDa fragment further processed to 10 kDa, then the cleavage of receptor-associated p43 yields p26 and the release of the active site containing p18. A number of cytosolic factors inhibit the FADD-Caspase-8 containing signaling complex, including the ICE/CED-3 family inhibitor CrmA which inhibits Caspase-8 protease activity, and the short and long forms of FLIP that bind to the FADD-Caspase-8 complex. |
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Regulatory Status: | RUO - Research Use Only |
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Western Blot analysis of Caspase-8 fragments in apoptosis induced Jurkat cells using Caspase-8, mAb (5F7) (Prod. No. ADI-AAM-118). The Jurkat cells were treated with a FAS monoclonal antibody for the indicated time
Western blot analysis of Jurkat (1), Raji (2), HeLa (3) and WR19L (4) probed with Caspase-8, mAb (5F7).
Immunohistochemistry staining of human breast tissue using anti-Caspase-8 antibody (prod.no. ADI-AAM-118 clone 5F7, 1:50) showed positive staining in both cytoplasm and nucleus of breast epithelial and myoepithelial cells. Image taken at magnification of 63x.
Immunohistochemistry staining of human breast tissue using anti-Caspase-8 antibody (prod.no. ADI-AAM-118 clone 5F7, 1:50) showed positive staining in both cytoplasm and nucleus of breast epithelial and myoepithelial cells. Image taken at magnification of 63x.
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Product Literature References
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Modulation of Mcl-1 transcription by serum deprivation sensitizes cancer cells to cisplatin: V.V. Senichkin, et al.; Biochim. Biophys. Acta
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Abstract;
RIP3 antagonizes a TSC2-mediated pro-survival pathway in glioblastoma cell death: G. Fettweis, et al.; Biochim. Biophys. Acta
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Application(s): Western blot,
Abstract;
The Deubiquitinase Inhibitor PR-619 Sensitizes Normal Human Fibroblasts to Tumor Necrosis Factor-related Apoptosis-inducing Ligand (TRAIL)-mediated Cell Death: R.N. Crowder, et al.; J. Biol. Chem.
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Full Text
dsRNA induces apoptosis through an atypical death complex associating TLR3 to caspase-8: Y. Estornes, et al.; Cell Death Differ.
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Application(s): WB and IP using human cell lysates,
Abstract;
Full Text
p53-R273H gains new function in induction of drug resistance through down-regulation of procaspase-3: T. Kwok, et al. ; Mol. Cancer Ther.
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Application(s): WB using human cell lysates,
Abstract;
Silibinin sensitizes human glioma cells to TRAIL-Mediated apoptosis via DR5 up-regulation and down-regulation of c-FLIP and survivin: K. Choi, et al. ; Cancer Res.
67, 8274 (2007),
Application(s): WB using human cell lysates,
Abstract;
Death-receptor activation halts clathrin-dependent endocytosis: C.D. Austin, et al.; PNAS
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Abstract;
Full Text
Molecular Determinants of Kinase Pathway Activation by Apo2 Ligand/Tumor Necrosis Factor-related Apoptosis-inducing Ligand: E. Varfolomeev, et al.; J. Biol. Chem.
280, 40599 (2005),
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Full Text
Synthetic Triterpenoids Cooperate with Tumor Necrosis Factor–Related Apoptosis-Inducing Ligand to Induce Apoptosis of Breast Cancer Cells: M.L. Hyer, et al.; Cancer Res.
65, 4799 (2005),
Abstract;
Full Text
Interchain Proteolysis, in the Absence of a Dimerization Stimulus, Can Initiate Apoptosis-associated Caspase-8 Activation: B.M. Murphy, et al.; J. Biol. Chem.
279, 36916 (2004),
Abstract;
Full Text
Caspase-Dependent Cleavage of c-Abl Contributes to Apoptosis: D. Barilà, et al.; Mol. Cell. Biol.
23, 2790 (2003),
Abstract;
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Cephalostatin 1 Selectively Triggers the Release of Smac/DIABLO and Subsequent Apoptosis That Is Characterized by an Increased Density of the Mitochondrial Matrix: V.M. Dirsch, et al.; Cancer Res.
63, 8869 (2003),
Abstract;
Full Text
Role of Murine Cytomegalovirus US22 Gene Family Members in Replication in Macrophages: C. Ménard, et al.; J. Virol.
77, 5557 (2003),
Abstract;
Full Text
Multiple Pathways of TWEAK-Induced Cell Death: M. Nakayama, et al.; J. Immunol.
168, 734 (2002),
Abstract;
Full Text
A cytomegalovirus-encoded inhibitor of apoptosis that suppresses caspase-8 activation: A. Skaletskaya, et al.; PNAS
98, 7829 (2001),
Abstract;
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Matrix Attachment Regulates FAS-Induced Apoptosis in Endothelial Cells: A Role for C-Flip and Implications for Anoikis: F. Aoudjit & K. Vuori; J. Cell Biol.
152, 633 (2001),
Abstract;
Full Text
A cytomegalovirus-encoded mitochondria-localized inhibitor of apoptosis structurally unrelated to Bcl-2: V.S. Goldmacher, et al.; PNAS
96, 12536 (1999),
Abstract;
Full Text
ATP-dependent Steps in Apoptotic Signal Transduction: Y. Eguchi, et al.; Cancer Res.
59, 2174 (1999),
Abstract;
Full Text
Inhibition of Fas-induced apoptosis by Bcl-2: S. Nagata, et al. ; Oncogene
17, 2549 (1998),
Application(s): IP using human samples,
Abstract;
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