| Weight | 1 lbs |
|---|---|
| Dimensions | 9 × 5 × 2 in |
| host | rabbit |
| isotype | IgG |
| clonality | polyclonal |
| concentration | 1 mg/mL |
| applications | ICC/IF, WB |
| reactivity | Caspase-8 |
| available sizes | 100 µg |
rabbit anti-Caspase-8 antibody polyclonal antibody 2828
$469.00
Antibody summary
- Rabbit polyclonal to Caspase-8 Antibody
- Suitable for: ELISA,WB,IHC-P,ICC,IF
- Isotype: IgG
- 100 µg
rabbit anti-Caspase-8 antibody polyclonal antibody 2828
| antibody |
|---|
| Tested applications WB,IHC,IHC,ICC/IF,ELISA |
| Recommended dilutions Immunoblotting: use at 0.5-2ug/mL. Positive control: Jurkat cell lysate. Immunocytochemistry: use at 2ug/mL. These are recommended concentrations. Enduser should determine optimal concentrations for their applications. |
| Immunogen Synthetic peptide corresponding to 16 amino acids at the C-terminus of human Caspase-8 isoform A (accession no. NP_001219). |
| Size and concentration 100µg and lot specific |
| Form liquid |
| Storage Instructions This antibody is stable for at least one (1) year at -20°C. Avoid multiple freeze-thaw cycles. |
| Storage buffer PBS, pH 7.4. |
| Purity peptide affinty purifcation |
| Clonality polyclonal |
| Isotype IgG |
| Compatible secondaries goat anti-rabbit IgG, H&L chain specific, peroxidase conjugated, conjugated polyclonal antibody 9512 goat anti-rabbit IgG, H&L chain specific, biotin conjugated polyclonal antibody 2079 goat anti-rabbit IgG, H&L chain specific, FITC conjugated polyclonal antibody 7863 goat anti-rabbit IgG, H&L chain specific, Cross Absorbed polyclonal antibody 2371 goat anti-rabbit IgG, H&L chain specific, biotin conjugated polyclonal antibody, crossabsorbed 1715 goat anti-rabbit IgG, H&L chain specific, FITC conjugated polyclonal antibody, crossabsorbed 1720 |
| Isotype control Rabbit polyclonal - Isotype Control |
| target relevance |
|---|
| Protein names Caspase-8 (CASP-8) (EC 3.4.22.61) (Apoptotic cysteine protease) (Apoptotic protease Mch-5) (CAP4) (FADD-homologous ICE/ced-3-like protease) (FADD-like ICE) (FLICE) (ICE-like apoptotic protease 5) (MORT1-associated ced-3 homolog) (MACH) [Cleaved into: Caspase-8 subunit p18; Caspase-8 subunit p10] |
| Gene names CASP8,CASP8 MCH5 |
| Protein family Peptidase C14A family |
| Mass 55391Da |
| Function FUNCTION: Thiol protease that plays a key role in programmed cell death by acting as a molecular switch for apoptosis, necroptosis and pyroptosis, and is required to prevent tissue damage during embryonic development and adulthood (PubMed:23516580, PubMed:8681376, PubMed:8681377, PubMed:9006941, PubMed:9184224, PubMed:8962078, PubMed:35446120, PubMed:35338844). Initiator protease that induces extrinsic apoptosis by mediating cleavage and activation of effector caspases responsible for the TNFRSF6/FAS mediated and TNFRSF1A induced cell death (PubMed:23516580, PubMed:8681376, PubMed:8681377, PubMed:9006941, PubMed:9184224, PubMed:8962078, PubMed:35446120, PubMed:35338844). Cleaves and activates effector caspases CASP3, CASP4, CASP6, CASP7, CASP9 and CASP10 (PubMed:8962078, PubMed:9006941, PubMed:16916640). Binding to the adapter molecule FADD recruits it to either receptor TNFRSF6/FAS mediated or TNFRSF1A (PubMed:8681376, PubMed:8681377). The resulting aggregate called death-inducing signaling complex (DISC) performs CASP8 proteolytic activation (PubMed:9184224). The active dimeric enzyme is then liberated from the DISC and free to activate downstream apoptotic proteases (PubMed:9184224). Proteolytic fragments of the N-terminal propeptide (termed CAP3, CAP5 and CAP6) are likely retained in the DISC (PubMed:9184224). In addition to extrinsic apoptosis, also acts as a negative regulator of necroptosis: acts by cleaving RIPK1 at 'Asp-324', which is crucial to inhibit RIPK1 kinase activity, limiting TNF-induced apoptosis, necroptosis and inflammatory response (PubMed:31827280, PubMed:31827281). Also able to initiate pyroptosis by mediating cleavage and activation of gasdermin-C and -D (GSDMC and GSDMD, respectively): gasdermin cleavage promotes release of the N-terminal moiety that binds to membranes and forms pores, triggering pyroptosis (PubMed:32929201, PubMed:34012073). Initiates pyroptosis following inactivation of MAP3K7/TAK1 (By similarity). Also acts as a regulator of innate immunity by mediating cleavage and inactivation of N4BP1 downstream of TLR3 or TLR4, thereby promoting cytokine production (By similarity). May participate in the Granzyme B (GZMB) cell death pathways (PubMed:8755496). Cleaves PARP1 and PARP2 (PubMed:8681376). {ECO:0000250|UniProtKB:O89110, ECO:0000269|PubMed:16916640, ECO:0000269|PubMed:23516580, ECO:0000269|PubMed:31827280, ECO:0000269|PubMed:31827281, ECO:0000269|PubMed:32929201, ECO:0000269|PubMed:34012073, ECO:0000269|PubMed:35338844, ECO:0000269|PubMed:35446120, ECO:0000269|PubMed:8681376, ECO:0000269|PubMed:8681377, ECO:0000269|PubMed:8755496, ECO:0000269|PubMed:8962078, ECO:0000269|PubMed:9006941, ECO:0000269|PubMed:9184224}.; FUNCTION: [Isoform 5]: Lacks the catalytic site and may interfere with the pro-apoptotic activity of the complex. {ECO:0000305|PubMed:8681376}.; FUNCTION: [Isoform 6]: Lacks the catalytic site and may interfere with the pro-apoptotic activity of the complex. {ECO:0000305|PubMed:8681376}.; FUNCTION: [Isoform 7]: Lacks the catalytic site and may interfere with the pro-apoptotic activity of the complex (Probable). Acts as an inhibitor of the caspase cascade (PubMed:12010809). {ECO:0000269|PubMed:12010809, ECO:0000305|PubMed:8681376}.; FUNCTION: [Isoform 8]: Lacks the catalytic site and may interfere with the pro-apoptotic activity of the complex. {ECO:0000305|PubMed:8681376}. |
| Catalytic activity CATALYTIC ACTIVITY: Reaction=Strict requirement for Asp at position P1 and has a preferred cleavage sequence of (Leu/Asp/Val)-Glu-Thr-Asp-|-(Gly/Ser/Ala).; EC=3.4.22.61; Evidence={ECO:0000269|PubMed:16916640, ECO:0000269|PubMed:23516580, ECO:0000269|PubMed:32929201, ECO:0000269|PubMed:34012073, ECO:0000269|PubMed:8962078}; |
| Subellular location SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250|UniProtKB:Q9JHX4}. Nucleus {ECO:0000250|UniProtKB:Q9JHX4}. |
| Tissues TISSUE SPECIFICITY: 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. |
| Structure SUBUNIT: Heterotetramer that consists of two anti-parallel arranged heterodimers, each one formed by a 18 kDa (p18) and a 10 kDa (p10) subunit (PubMed:10508784). Interacts with FADD, CFLAR and PEA15 (PubMed:10442631). Interacts with TNFAIP8L2 (By similarity). Interacts with CASP8AP2 (PubMed:16378960). Interacts with RFFL and RNF34; negatively regulate CASP8 through proteasomal degradation (PubMed:15069192). Interacts with NOL3; decreases CASP8 activity in a mitochondria localization- and phosphorylation-dependent manner and this interaction is dissociated by calcium (PubMed:15509781). Interacts with UBR2ca (PubMed:28602583). Interacts with RIPK1 (By similarity). Interacts with stimulated TNFRSF10B; this interaction is followed by CASP8 proteolytic cleavage and activation (PubMed:18846110). Component of the AIM2 PANoptosome complex, a multiprotein complex that drives inflammatory cell death (PANoptosis) (By similarity). {ECO:0000250|UniProtKB:O89110, ECO:0000250|UniProtKB:Q9JHX4, ECO:0000269|PubMed:10442631, ECO:0000269|PubMed:10508784, ECO:0000269|PubMed:15069192, ECO:0000269|PubMed:15509781, ECO:0000269|PubMed:16378960, ECO:0000269|PubMed:18846110, ECO:0000269|PubMed:28602583}.; SUBUNIT: [Isoform 9]: Interacts at the endoplasmic reticulum with a complex containing BCAP31, BAP29, BCL2 and/or BCL2L1. {ECO:0000269|PubMed:11917123, ECO:0000269|PubMed:9334338}.; SUBUNIT: (Microbial infection) Interacts with human cytomegalovirus/HHV-5 protein vICA/UL36; this interaction inhibits CASP8 activation. {ECO:0000269|PubMed:11427719}.; SUBUNIT: (Microbial infection) Interacts with NleF from pathogenic E.coli. {ECO:0000269|PubMed:23516580}.; SUBUNIT: (Microbial infection) Interacts with molluscum contagiosum virus protein MC160. {ECO:0000269|PubMed:16378960}.; SUBUNIT: (Microbial infection) Interacts (via RIP homotypic interaction motif) with herpes simplex virus 1/HHV-1 protein RIR1/ICP6 (via RIP homotypic interaction motif); this interaction prevents necroptosis activation. {ECO:0000269|PubMed:25674983}.; SUBUNIT: (Microbial infection) Interacts (via RIP homotypic interaction motif) with herpes simplex virus 2/HHV-2 protein RIR1/ICP10 (via RIP homotypic interaction motif); this interaction prevents necroptosis activation. {ECO:0000269|PubMed:25674983}. |
| Post-translational modification PTM: (Microbial infection) Proteolytically cleaved by the cowpox virus CRMA death inhibitory protein. {ECO:0000269|PubMed:8962078}.; PTM: Generation of the subunits requires association with the death-inducing signaling complex (DISC), whereas additional processing is likely due to the autocatalytic activity of the activated protease. GZMB and CASP10 can be involved in these processing events. {ECO:0000269|PubMed:8962078, ECO:0000269|PubMed:9184224}.; PTM: Phosphorylation on Ser-387 during mitosis by CDK1 inhibits activation by proteolysis and prevents apoptosis. This phosphorylation occurs in cancer cell lines, as well as in primary breast tissues and lymphocytes. {ECO:0000269|PubMed:20937773}.; PTM: (Microbial infection) ADP-riboxanation by C.violaceum CopC blocks CASP8 processing, preventing CASP8 activation and ability to mediate extrinsic apoptosis. {ECO:0000269|PubMed:35338844, ECO:0000269|PubMed:35446120}. |
| Target Relevance information above includes information from UniProt accession : Q14790 |
| The UniProt Consortium |
Data
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| Western blot analysis of caspase-8 in Jurkat cell lysate with caspase-8 antibody at 1 µg/mL in (A) the absence and (B) the presence of blocking peptide. |
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| Immunohistochemistry of Caspase-8 in human spleen tissue with Caspase-8 antibody at 5 µg/mL. |
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| Immunofluorescence of Caspase-8 in Jurkat cells with Caspase-8 antibody at 20 µg/mL. |
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| Immunocytochemistry of caspase-8 in Jurkat cells with caspase-8 antibody at 2 µg/mL. |
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| Western blot analysis of Caspase-8 in (A) human spleen, (B) mouse spleen, and (C) rat spleen tissue lysate with Caspase-8 antibody at 0.5 µg/mL. |
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| Immunofluorescence of Caspase-8 in human spleen tissue with Caspase-8 antibody at 20 µg/mL.
Red: Caspase-8 Antibody (2828) Blue: DAPI staining |
Publications
Published literature highly relevant to the biological target of this product and referencing this antibody or clone are retrieved from PubMed database provided by The United States National Library of Medicine at the National Institutes of Health.| pmid | title | authors | citation |
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Protocols
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| Western blot IHC ICC |
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