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Product Details
14-9934-82
Product Specifications
Species Reactivity
Human
Host/Isotype
Rat
/ IgG2a
Class
Monoclonal
Type
Antibody
Clone
1H10
Conjugate
Form
Liquid
Concentration
0.5 mg/mL
Purification
Affinity chromatography
Storage buffer
PBS, pH 7.2
Contains
0.09% sodium azide
Storage conditions
4° C
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
AB_1548833
Product Specific Information
Description: The monoclonal antibody 1H10 recognizes human Caspase-8 also known as FLICE and MACH, a member of the cysteine-requiring aspartate protease family. Caspase-8 is an upstream caspase responsible for Fas and TNF-alpha mediated apoptosis. After activation of the Fas or TNF receptors by their ligands, the adaptor molecule FADD binds to the receptor and recruits caspase-8 to the membrane. The formation of this complex induces the cleavage and activation of caspase-8. The active form of caspase-8, made of a heterotetramer of p18 and p10, is released in the cytoplasm and activates downstream apoptotic proteases (caspase-3, -4, -6, -7, -9 and -10). Several (> 8) isoforms have been identified: 3 different pro-forms called Caspase-8a (55kDA), Caspase-8b (53kDa), and Caspase-8L which is procaspase-8 with an additional N-terminal extension of 59 aa.
The 1H10 antibody recognizes the p55 and p53 proforms in addition to the p43 and p18 cleaved forms. Under reducing conditions, an additional band (possibly non-specific) around 35kDa may be present. Under nonreducing conditions, this band is absent.
Applications Reported: This 1H10 antibody has been reported for use in immunoblotting (WB).
Applications Tested: This 1H10 antibody has been tested by immunoblot analysis of cell lines. This can be used at 1-5 µg/mL It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.
Purity: Greater than 90%, as determined by SDS-PAGE.
Aggregation: Less than 10%, as determined by HPLC.
Filtration: 0.2 µm post-manufacturing filtered.
Target Information
Caspase 8 (CASP8) is a member of the cysteine-aspartic acid protease (caspase) family. Sequential activation of caspases play a central role in the execution-phase of cell apoptosis. Caspases exist as inactive proenzymes composed of a pro-domain, 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. Caspase 8 is involved in the programmed cell death induced by Fas and various apoptotic stimuli. The N-terminal FADD-like death effector domain of Caspase 8 suggests that it may interact with Fas-interacting protein FADD. Caspase 8 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. Caspase 8 binds to the death effector domain (DED) of FADD through an analogous DED domain present in tandem in the pro-form of the Caspase 8 protein. Activated Caspase 8 then activates other downstream caspases including Caspase 9, thereby committing the cell to undergo apoptosis. In addition, Caspase 8 also reacts with Jurkat cells and Tonsil. Overexpression of Caspase 8 induces apoptosis, which can be blocked by inhibitors specific for the ICE family. Many alternatively spliced transcript variants encoding different isoforms have been described for Caspase 8, however, not all variants have had their full-length sequences determined.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: Apoptotic cysteine protease; Apoptotic protease Mch-5; CAP4; CASP-8; caspase 8, apoptosis-related cysteine peptidase; caspase 8, apoptosis-related cysteine protease; Caspase-8; Caspase-8 precursor; Caspase8; EC 3.4.22.61; FADD-homologous ICE/CED-3-like protease; FADD-like ICE; FLICE; FLJ17672; ICE-like apoptotic protease 5; ICE8; MACH; MACH-alpha-1/2/3 protein; MACH-beta-1/2/3/4 protein; MGC78473; MORT1-associated ced-3 homolog; OTTHUMP00000163720; OTTHUMP00000165063; OTTHUMP00000206557; OTTHUMP00000206581
Gene Aliases: ALPS2B; CAP4; Casp-8; CASP8; FLICE; MACH; MCH5
UniProt ID: (Human) Q14790
Entrez Gene ID: (Human) 841
cysteine-type endopeptidase activity
death receptor binding
tumor necrosis factor receptor binding
protein binding
peptidase activity
cysteine-type peptidase activity
ubiquitin protein ligase binding
protein complex binding
death effector domain binding
identical protein binding
scaffold protein binding
cysteine-type endopeptidase activity involved in apoptotic process
cysteine-type endopeptidase activity involved in apoptotic signaling pathway
protease
proteolysis
apoptotic process
activation of cysteine-type endopeptidase activity involved in apoptotic process
cellular component disassembly involved in execution phase of apoptosis
cell surface receptor signaling pathway
response to cold
regulation of tumor necrosis factor-mediated signaling pathway
regulation of necrotic cell death
natural killer cell activation
macrophage differentiation
response to cobalt ion
response to estradiol
response to lipopolysaccharide
response to tumor necrosis factor
TRIF-dependent toll-like receptor signaling pathway
TRAIL-activated apoptotic signaling pathway
suppression by virus of host cysteine-type endopeptidase activity involved in apoptotic process
T cell activation
B cell activation
positive regulation of I-kappaB kinase/NF-kappaB signaling
negative regulation of I-kappaB kinase/NF-kappaB signaling
response to ethanol
positive regulation of macrophage differentiation
positive regulation of proteolysis
response to antibiotic
protein heterooligomerization
proteolysis involved in cellular protein catabolic process
syncytiotrophoblast cell differentiation involved in labyrinthine layer development
nucleotide-binding oligomerization domain containing signaling pathway
cellular response to mechanical stimulus
cellular response to organic cyclic compound
death-inducing signaling complex assembly
apoptotic signaling pathway
extrinsic apoptotic signaling pathway
execution phase of apoptosis
activation of cysteine-type endopeptidase activity
activation of cysteine-type endopeptidase activity involved in apoptotic signaling pathway
positive regulation of protein insertion into mitochondrial membrane involved in apoptotic signaling pathway
regulation of extrinsic apoptotic signaling pathway via death domain receptors
negative regulation of extrinsic apoptotic signaling pathway via death domain receptors
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