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Mouse Anti-CASP8 Recombinant Antibody (CBFYC-0856) (CBMAB-C0911-FY)

This product is mouse antibody that recognizes CASP8. The antibody CBFYC-0856 can be used for immunoassay techniques such as: ELISA, FC, IHC-P, WB.
See all CASP8 antibodies

Summary

Host Animal
Mouse
Specificity
Human, Mouse, Rat
Clone
CBFYC-0856
Antibody Isotype
IgG1
Application
ELISA, FC, IHC-P, WB

Basic Information

Specificity
Human, Mouse, Rat
Antibody Isotype
IgG1
Clonality
Monoclonal
Application Notes
The COA includes recommended starting dilutions, optimal dilutions should be determined by the end user.

Formulations & Storage [For reference only, actual COA shall prevail!]

Format
Liquid
Storage
Store at +4°C short term (1-2 weeks). Aliquot and store at-20°C long term. Avoid repeated freeze/thaw cycles.

Target

Full Name
Caspase 8
Introduction
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.
Entrez Gene ID
Human841
Mouse12370
Rat64044
UniProt ID
HumanQ14790
MouseO89110
RatQ9JHX4
Alternative Names
Caspase 8; Caspase 8, Apoptosis-Related Cysteine Peptidase; Caspase 8, Apoptosis-Related Cysteine Protease; MORT1-Associated Ced-3 Homolog; ICE-Like Apoptotic Protease 5; Apoptotic Cysteine Protease; Apoptotic Protease Mch-5; FADD-Like ICE; Casp-8; FLICE; CAP4
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 (By similarity).
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).
Cleaves and activates effector caspases CASP3, CASP4, CASP6, CASP7, CASP9 and CASP10 (PubMed:8962078, PubMed:9006941).
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-D (GSDMD): GSDMD cleavage promoting release of the N-terminal moiety (Gasdermin-D, N-terminal) that binds to membranes and forms pores, triggering pyroptosis (By similarity).
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 (PubMed:8681376).
Isoform 5: Lacks the catalytic site and may interfere with the pro-apoptotic activity of the complex.
Isoform 6: Lacks the catalytic site and may interfere with the pro-apoptotic activity of the complex.
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).
Isoform 8: Lacks the catalytic site and may interfere with the pro-apoptotic activity of the complex.
Biological Process
Activation of cysteine-type endopeptidase activity Source: BHF-UCL
Activation of cysteine-type endopeptidase activity involved in apoptotic process Source: GO_Central
Activation of cysteine-type endopeptidase activity involved in apoptotic signaling pathway Source: Reactome
Angiogenesis Source: UniProtKB
Apoptotic process Source: UniProtKB
Apoptotic signaling pathway Source: BHF-UCL
B cell activation Source: UniProtKB
Cell surface receptor signaling pathway Source: Reactome
Cellular response to mechanical stimulus Source: UniProtKB
Cellular response to organic cyclic compound Source: Ensembl
Death-inducing signaling complex assembly Source: Reactome
Execution phase of apoptosis Source: UniProtKB
Extrinsic apoptotic signaling pathway Source: UniProtKB
Extrinsic apoptotic signaling pathway via death domain receptors Source: GO_Central
Heart development Source: UniProtKB
Macrophage differentiation Source: GO_Central
Modulation by virus of host cellular process Source: Reactome
Natural killer cell activation Source: UniProtKB
Negative regulation of extrinsic apoptotic signaling pathway via death domain receptors Source: Reactome
Negative regulation of I-kappaB kinase/NF-kappaB signaling Source: UniProtKB
Negative regulation of necroptotic process Source: UniProtKB
Nucleotide-binding oligomerization domain containing signaling pathway Source: Reactome
Positive regulation of apoptotic process Source: UniProtKB
Positive regulation of I-kappaB kinase/NF-kappaB signaling Source: UniProtKB
Positive regulation of interleukin-1 beta production Source: ARUK-UCL
Positive regulation of macrophage differentiation Source: UniProtKB
Positive regulation of neuron death Source: Ensembl
Positive regulation of protein insertion into mitochondrial membrane involved in apoptotic signaling pathway Source: Reactome
Positive regulation of proteolysis Source: BHF-UCL
Proteolysis Source: UniProtKB
Proteolysis involved in cellular protein catabolic process Source: BHF-UCL
Pyroptosis Source: UniProtKB
Regulation of cytokine production Source: UniProtKB
Regulation of extrinsic apoptotic signaling pathway via death domain receptors Source: Reactome
Regulation of innate immune response Source: UniProtKB
Regulation of necroptotic process Source: Reactome
Regulation of tumor necrosis factor-mediated signaling pathway Source: Reactome
Response to antibiotic Source: Ensembl
Response to cobalt ion Source: Ensembl
Response to cold Source: Ensembl
Response to estradiol Source: Ensembl
Response to ethanol Source: Ensembl
Response to lipopolysaccharide Source: Ensembl
Response to tumor necrosis factor Source: BHF-UCL
Self proteolysis Source: UniProtKB
Suppression by virus of host cysteine-type endopeptidase activity involved in apoptotic process Source: Reactome
Syncytiotrophoblast cell differentiation involved in labyrinthine layer development Source: UniProtKB
T cell activation Source: UniProtKB
Toll-like receptor 3 signaling pathway Source: Reactome
TRAIL-activated apoptotic signaling pathway Source: ParkinsonsUK-UCL
TRIF-dependent toll-like receptor signaling pathway Source: Reactome
Cellular Location
Cytoplasm; Nucleus
Involvement in disease
Caspase-8 deficiency (CASP8D): Disorder resembling autoimmune lymphoproliferative syndrome (ALPS). It is characterized by lymphadenopathy, splenomegaly, and defective CD95-induced apoptosis of peripheral blood lymphocytes (PBLs). It leads to defects in activation of T-lymphocytes, B-lymphocytes, and natural killer cells leading to immunodeficiency characterized by recurrent sinopulmonary and herpes simplex virus infections and poor responses to immunization.
PTM
(Microbial infection) Proteolytically cleaved by the cowpox virus CRMA death inhibitory protein.
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.
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.

Wang, M., Li, X., Xie, W., Zhong, L., Leng, Y., Chen, X., ... & Tang, D. (2021). Inhibitory Effect of Lentivirus-Mediated Gag-Caspase-8 on the Growth of HER-2-Overexpressing Primary Human Breast Cancer Cells. Cancer Biotherapy & Radiopharmaceuticals.

Singh, R., Das, S., Datta, S., Mazumdar, A., Biswas, N. K., Maitra, A., ... & Roy, B. (2020). Study of Caspase 8 mutation in oral cancer and adjacent precancer tissues and implication in progression. Plos one, 15(6), e0233058.

Feng, Y., Daley-Bauer, L. P., Roback, L., Guo, H., Koehler, H. S., Potempa, M., ... & Mocarski, E. S. (2019). Caspase-8 restricts antiviral CD8 T cell hyperaccumulation. Proceedings of the National Academy of Sciences, 116(30), 15170-15177.

Lehle, A. S., Farin, H. F., Marquardt, B., Michels, B. E., Magg, T., Li, Y., ... & Kotlarz, D. (2019). Intestinal inflammation and dysregulated immunity in patients with inherited caspase-8 deficiency. Gastroenterology, 156(1), 275-278.

Newton, K., Wickliffe, K. E., Maltzman, A., Dugger, D. L., Reja, R., Zhang, Y., ... & Dixit, V. M. (2019). Activity of caspase-8 determines plasticity between cell death pathways. Nature, 575(7784), 679-682.

Fritsch, M., Günther, S. D., Schwarzer, R., Albert, M. C., Schorn, F., Werthenbach, J. P., ... & Kashkar, H. (2019). Caspase-8 is the molecular switch for apoptosis, necroptosis and pyroptosis. Nature, 575(7784), 683-687.

Shih, L. C., Tsai, C. W., Sun, K. T., Hsu, H. M., Shen, T. C., Tsai, Y. T., ... & Bau, D. T. (2019). Association of caspase-8 genotypes with oral cancer risk in Taiwan. in vivo, 33(4), 1151-1156.

Allavena, G., Cuomo, F., Baumgartner, G., Bele, T., Sellgren, A. Y., Oo, K. S., ... & Kaminskyy, V. O. (2018). Suppressed translation as a mechanism of initiation of CASP8 (caspase 8)-dependent apoptosis in autophagy-deficient NSCLC cells under nutrient limitation. Autophagy, 14(2), 252-268.

Aghababazadeh, M., Dorraki, N., Javan, F. A., Fattahi, A. S., Gharib, M., & Pasdar, A. (2017). Downregulation of Caspase 8 in a group of Iranian breast cancer patients–A pilot study. Journal of the Egyptian National Cancer Institute, 29(4), 191-195.

Liu, D., Xu, W., Ding, X., Yang, Y., Lu, Y., Fei, K., & Su, B. (2017). Caspase 8 polymorphisms contribute to the prognosis of advanced lung adenocarcinoma patients after platinum-based chemotherapy. Cancer biology & therapy, 18(12), 948-957.

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For research use only. Not intended for any clinical use.

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