biological source
rabbit
Quality Level
conjugate
unconjugated
antibody form
affinity isolated antibody
antibody product type
primary antibodies
clone
polyclonal
product line
Prestige Antibodies® Powered by Atlas Antibodies
form
buffered aqueous glycerol solution
species reactivity
human
technique(s)
immunoblotting: 0.04-0.4 μg/mL
immunohistochemistry: 1:50-1:200
UniProt accession no.
shipped in
wet ice
storage temp.
−20°C
target post-translational modification
unmodified
Gene Information
human ... CASP8(841)
General description
Caspase 8 (CASP8) is a cysteine protease, belonging to the cysteine-aspartic acid protease (caspase) family.
Immunogen
Caspase-8 precursor recombinant protein epitope signature tag (PrEST)
Sequence
LGEGKLDILKRVCAQINKSLLKIINDYEEFSKGEELCGVMTISDSPREQDSESQTLDKVYQMKSKPRGYCLIINNHNFAKAREKVPKLHSIRDRNGTHLDAGALTTTFEELHFEIKPHDDCTVEQIYEILKIYQLMDHSNMDCFICC
Sequence
LGEGKLDILKRVCAQINKSLLKIINDYEEFSKGEELCGVMTISDSPREQDSESQTLDKVYQMKSKPRGYCLIINNHNFAKAREKVPKLHSIRDRNGTHLDAGALTTTFEELHFEIKPHDDCTVEQIYEILKIYQLMDHSNMDCFICC
Application
All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project and as a result, are supported by the most extensive characterization in the industry.
The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. We also provide Prestige Antibodies® protocols and other useful information.
The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. We also provide Prestige Antibodies® protocols and other useful information.
Biochem/physiol Actions
Caspase 8 (CASP8) is the first protease of the activation cascade of caspases responsible for the tumor necrosis factor receptor superfamily member 6 (TNFRSF6/FAS) mediated and tumor necrosis factor receptor superfamily member F1A (TNFRSF1A) induced cell death. After binding to the adapter molecule, Fas-associated via death domain (FADD) recruits it to a receptor. This results in the formation of an aggregation called death-inducing signaling complex (DISC) which carries out the proteolytic activation of CASP8. Then its active dimeric form is liberated from the DISC and activates downstream apoptotic proteases. It then cleaves and activates CASP3, CASP4, CASP6, CASP7, CASP9 and CASP10. CASP8 also participates in Granzyme (GZMB) apoptotic pathways. It hydrolyzes a small-molecule substrate, Ac-Asp-Glu-Val-Asp-AMC.CASP8 is a modulator of p85a Rab-GAP activity and endosomal trafficking. The interaction between it and p85a causes Rab5 GTP loading, changes endosomal trafficking and at the edge of the cell, Rab5-positive endosomes are seen.
Features and Benefits
Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.
Every Prestige Antibody is tested in the following ways:
Every Prestige Antibody is tested in the following ways:
- IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
- Protein array of 364 human recombinant protein fragments.
Physical form
Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide
Other Notes
Corresponding Antigen APREST78230
Legal Information
Prestige Antibodies is a registered trademark of Merck KGaA, Darmstadt, Germany
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
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Storage Class Code
10 - Combustible liquids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Regulatory Information
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Vicente A Torres et al.
The Journal of biological chemistry, 283(52), 36280-36289 (2008-11-01)
Caspase 8 is a cysteine protease that initiates apoptotic signaling via the extrinsic pathway in a manner dependent upon association with early endosomes. Previously, we identified caspase 8 as an effector of migration, promoting motility in a manner dependent upon
M Muzio et al.
The Journal of biological chemistry, 272(5), 2952-2956 (1997-01-31)
Engagement of CD95 or tumor necrosis factor 1 receptor (TNFR-1) by ligand or agonist antibodies is capable of activating the cell death program, the effector arm of which is composed of mammalian interleukin-1beta converting enzyme (ICE)-like cysteine proteases (designated caspases)
Silvia Márquez-Jurado et al.
Nature communications, 9(1), 389-389 (2018-01-28)
Fractional killing is the main cause of tumour resistance to chemotherapy. This phenomenon is observed even in genetically identical cancer cells in homogeneous microenvironments. To understand this variable resistance, here we investigate the individual responses to TRAIL in a clonal
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