Rabbit anti-Mouse, Rat CASPASE-8 Polyclonal Antibody | anti-CASP8 antibody

RABBIT ANTI CASPASE-8 (C-TERMINAL)

Cat. Num. AAA224284

• Gene Names: CASP8; CAP4; MACH; MCH5; FLICE; ALPS2B; Casp-8
• Reactivity: Mouse, Rat
• Applications: Western Blot
• Synonyms: CASPASE-8; Polyclonal Antibody; RABBIT ANTI CASPASE-8 (C-TERMINAL); anti-CASP8 antibody

• Host: Rabbit
• Reactivity: Mouse, Rat
• Clonality: Polyclonal
• Isotype: IgG
• Specificity: This item recognises an epitope within the c-terminal region (CT) of caspase-8, otherwise known as Fas-linked ICE-like protease (FLICE), which shares homology with both Fas-associated via death domain (FADD) and the ICE/Ced-3 family of cysteine proteases.Caspase-8 is classified as an initiator caspase and acts as the most upstream trigger of Fas-Receptor (CD95) and tumour necrosis factor receptor 1 (TNFR1) mediated apoptosis. Upon activation, the cell death receptor Fas, links with the adaptor molecule FADD via corresponding death domains (DD). FADD in turn then binds via death effector domains (DEDs) to procaspase-8, which then undergoes oligomerization and autocatalytic activation.Active Caspase-8 is capable of cleaving all other known caspases, and also cleaves the Bcl-2 family member BH3-interacting domain death agonist (BID), along with the Bcl-2 associated protein p28Bap31.
• Form/Format: Purified; Purified IgG - liquid
• Concentration: IgG concentration 1.0 mg/ml (varies by lot)
• Sequence Length: 538

• Applicable Applications for anti-CASP8 antibody: Western Blot (WB)
• Application Notes: Western Blot: This item detects a cleaved subunit band of approximately 22.5kDa in Jurkat cell lysates (predicted precursor MWt 57.7kDa).; Western Blotting: Maximum Dilution: 0.5ug/ml
• Perservative Stabilisers: 0.02% Sodium Azide
• Immunogen: A 16 amino acid peptide located near the carboxy-terminus of human caspase-8 isoform A.; Buffer Solution
• Antiserum Preparation: Antisera to human caspase-8 (CT) were raised by repeated immunisations of rabbits with highly purified antigen. Purified IgG was prepared by affinity chromatography.
• Target Species: Human
• Preparation and Storage: Store at 4 degree C or at -20 degree C if preferred. This product should be stored undiluted. Storage in frost-free freezers is not recommended. Avoid repeated freezing and thawing as this may denature the antibody. Should this product contain a precipitate we recommend microcentrifugation before use.; Shelf Life: 18 months from date of despatch.

Testing Data #1

(Western blot analysis of lysate from Jurkat human T-cell leukemia cells probed with Rabbit anti Human caspase-8 (MBS224284) at 0.5(A), 1(B) and 2(C) ug/ml)

Testing Data #2

(Immunocytochemical staining of Jurkat cells with Rabbit anti Human caspase-8 (MBS224284))

Related Product Information for anti-CASP8 antibody

MBS224284 recognises an epitope within the c-terminal region (CT) of caspase-8, otherwise known as Fas-linked ICE-like protease (FLICE), which shares homology with both Fas-associated via death domain (FADD) and the ICE/Ced-3 family of cysteine proteases. Caspase-8 is classified as an initiator caspase and acts as the most upstream trigger of Fas-Receptor (CD95) and tumour necrosis factor receptor 1 (TNFR1) mediated apoptosis. Upon activation, the cell death receptor Fas, links with the adaptor molecule FADD via corresponding death domains (DD). FADD in turn then binds via death effector domains (DEDs) to procaspase-8, which then undergoes oligomerization and autocatalytic activation. Active Caspase-8 is capable of cleaving all other known caspases, and also cleaves the Bcl-2 family member BH3-interacting domain death agonist (BID), along with the Bcl-2 associated protein p28Bap31, see Wolf, B. B. & Green, D. R. for details.

NCBI and Uniprot Product Information

• NCBI GI #: 122056474
• NCBI GeneID: 841
• NCBI Accession #: NP_001073593.1
• NCBI GenBank Nucleotide #: NM_001080124.1
• UniProt Accession #: Q14790; O14676; Q14791; Q14792; Q14793; Q14794; Q14795; Q14796; Q15780; Q15806; Q53TT5; Q8TDI1
• Molecular Weight: 61,836 Da
• NCBI Official Full Name: caspase-8 isoform C
• NCBI Official Synonym Full Names: caspase 8, apoptosis-related cysteine peptidase
• NCBI Official Symbol: CASP8
• NCBI Official Synonym Symbols: CAP4; MACH; MCH5; FLICE; ALPS2B; Casp-8
• NCBI Protein Information: caspase-8; FADD-homologous ICE/CED-3-like protease; FADD-like ICE; ICE-like apoptotic protease 5; MACH-alpha-1/2/3 protein; MACH-beta-1/2/3/4 protein; MORT1-associated ced-3 homolog; apoptotic cysteine protease; apoptotic protease Mch-5; caspase 8, apoptosis-related cysteine protease
• UniProt Protein Name: Caspase-8
• Protein Family: Caspase
• UniProt Gene Name: CASP8
• UniProt Synonym Gene Names: MCH5; CASP-8; FLICE; MACH
• UniProt Entry Name: CASP8_HUMAN

NCBI Description

This gene encodes a member of the cysteine-aspartic acid protease (caspase) family. Sequential activation of caspases plays a central role in the execution-phase of cell apoptosis. Caspases exist as inactive proenzymes composed of a prodomain, a large protease subunit, and a small protease subunit. Activation of caspases requires proteolytic processing at conserved internal aspartic residues to generate a heterodimeric enzyme consisting of the large and small subunits. This protein is involved in the programmed cell death induced by Fas and various apoptotic stimuli. The N-terminal FADD-like death effector domain of this protein suggests that it may interact with Fas-interacting protein FADD. This protein was detected in the insoluble fraction of the affected brain region from Huntington disease patients but not in those from normal controls, which implicated the role in neurodegenerative diseases. Many alternatively spliced transcript variants encoding different isoforms have been described, although not all variants have had their full-length sequences determined. [provided by RefSeq, Jul 2008]

Uniprot Description

CASP8: 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. Isoform 5, isoform 6, isoform 7 and isoform 8 lack the catalytic site and may interfere with the pro-apoptotic activity of the complex. Heterotetramer that consists of two anti-parallel arranged heterodimers, each one formed by a 18 kDa (p18) and a 10 kDa (p10) subunit. Interacts with FADD, CFLAR and PEA15. Isoform 9 interacts at the endoplasmic reticulum with a complex containing BCAP31, BAP29, BCL2 and/or BCL2L1. Interacts with TNFAIP8L2. Interacts with human cytomegalovirus/HHV-5 protein vICA/UL36; this interaction inhibits CASP8 activation. Isoform 1, isoform 5 and isoform 7 are expressed in a wide variety of tissues. Highest expression in peripheral blood leukocytes, spleen, thymus and liver. Barely detectable in brain, testis and skeletal muscle. Belongs to the peptidase C14A family. 9 isoforms of the human protein are produced by alternative splicing.

Protein type: EC 3.4.22.61; Apoptosis; Protease

Chromosomal Location of Human Ortholog: 2q33-q34

Cellular Component: nucleoplasm; mitochondrial outer membrane; neuron projection; cytoskeleton; mitochondrion; Noc1p-Noc2p complex; cytoplasm; microtubule organizing center; CD95 death-inducing signaling complex; cytosol; lipid raft

Molecular Function: peptidase activity; protein binding; protein heterodimerization activity; ubiquitin protein ligase binding; cysteine-type endopeptidase activity; death receptor binding; protein complex binding; tumor necrosis factor receptor binding; cysteine-type peptidase activity

Biological Process: macrophage differentiation; T cell activation; viral reproduction; apoptosis; positive regulation of proteolysis; protein heterooligomerization; heart development; natural killer cell activation; response to lipopolysaccharide; toll-like receptor 3 signaling pathway; proteolysis; response to estradiol stimulus; response to antibiotic; proteolysis involved in cellular protein catabolic process; angiogenesis; positive regulation of macrophage differentiation; toll-like receptor 4 signaling pathway; cell structure disassembly during apoptosis; caspase activation; positive regulation of I-kappaB kinase/NF-kappaB cascade; B cell activation; MyD88-independent toll-like receptor signaling pathway; negative regulation of I-kappaB kinase/NF-kappaB cascade; response to ethanol; induction of apoptosis via death domain receptors; toll-like receptor signaling pathway; response to cobalt ion; innate immune response; response to cold; neural tube formation

Disease: Caspase 8 Deficiency; Breast Cancer; Lung Cancer; Hepatocellular Carcinoma