Phospho-Caspase-8 (S347) Polyclonal Antibody

SKU:BHA12101423
Overview
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CASP8-specific polyclonal antibody raised in Rabbit. Validated for Western Blot, Immunohistochemistry, ELISA in Human, Rat samples. Phospho-specific. Affinity-purified rabbit IgG.
Specificity Phospho-Specific
Immunogen Synthetic Peptide
Molecular Weight ~55.4 kDa
UniProt Q14790
Gene ID Human: 841
Applications 3 validated
Options selector
Catalog no. Size
BT-PHS00045-20UL 20 uL
BT-PHS00045-50UL 50 uL
BT-PHS00045-100UL 100 uL
Available Options
Size
Field Specification
Mfr No BT-PHS00045
Alternative Names CASP8; MCH5; Caspase-8; CASP-8; 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-associa
Clonality
  • Polyclonal
Concentration 1 mg/ml
Formulation Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
Gene ID Human: 841
Host Rabbit
Immunogen The antiserum was produced against synthesized peptide derived from human Caspase 8 around the phosphorylation site of Ser347. AA range:313-362
Isotype
  • IgG
Molecular Weight ~55.4 kDa
Product Type
  • Primary Antibody
Reactivity
  • Human
  • Rat
Storage -20°C for 1 year
Target CASP8

Product Overview

Primary Antibody

This antibody targets CASP8 and detects endogenous levels of CASP8 protein. Only detects the phosphorylated form of CASP8.

Validated Applications

Application Dilution Guidance
Western Blot (WB) Refer to datasheet for recommended working dilution
Immunohistochemistry (IHC) Refer to datasheet for recommended working dilution
ELISA Refer to datasheet for recommended working dilution
✔ Validated by Bioassay Technology Laboratory

Antibody Specifications

Target CASP8
Host Rabbit
Clonality Polyclonal
Isotype IgG
Reactivity Human, Rat
Purification Affinity Purification
Molecular Weight ~55.4 kDa
Concentration 1 mg/ml
Immunogen The antiserum was produced against synthesized peptide derived from human Caspase 8 around the phosphorylation site of Ser347. AA range:313-362
Formulation Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
Storage -20°C for 1 year
Gene ID Human: 841
UniProt Q14790 (Human: Q14790; Mouse: O89110)

Scientific Background

CASP8 (caspase 8) 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.

Alternative Names

CASP8; MCH5; Caspase-8; CASP-8; 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-associa

Safety & Handling

⚠ Research Use Only (RUO). Not approved for diagnostic or therapeutic use. Handle with standard laboratory safety precautions. Contains sodium azide — avoid contact with skin/eyes; dispose per local regulations.
TargetCASP8
HostRabbit
ClonalityPolyclonal
IsotypeIgG
ReactivityHuman, Rat
PurificationAffinity Purification
Molecular Weight~55.4 kDa
Concentration1 mg/ml
ImmunogenThe antiserum was produced against synthesized peptide derived from human Caspase 8 around the phosphorylation site of Ser347. AA range:313-362
FormulationLiquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
Storage-20°C for 1 year
Gene IDHuman: 841
UniProtQ14790 (Human: Q14790; Mouse: O89110)

Optimized working dilutions depend on sample type and detection system. Titration is recommended.

ApplicationDilution Note
Western Blot (WB)Refer to datasheet for recommended working dilution
Immunohistochemistry (IHC)Refer to datasheet for recommended working dilution
ELISARefer to datasheet for recommended working dilution

CASP8 (caspase 8) 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.

Alternative Names

CASP8; MCH5; Caspase-8; CASP-8; 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-associa

What species does this antibody react with?
This antibody has been validated for reactivity against Human, Rat. Actual cross-reactivity is determined by immunogen sequence homology across species. Contact technical support for unlisted species.
What applications has this antibody been validated for?
Validated applications include: Western Blot (WB), Immunohistochemistry (IHC), ELISA. Each application was tested with positive and negative controls. Contact our team regarding applications not listed.
How was this antibody produced and purified?
This polyclonal IgG antibody was raised in rabbit against a synthesized target-specific peptide. It was affinity-purified from antiserum using an epitope-specific immunogen, yielding a highly specific antibody suitable for multiple research applications.
What is the expected molecular weight of CASP8?
The predicted molecular weight of CASP8 is ~55.4 kDa. Band size may vary slightly depending on post-translational modifications and gel percentage.
What storage conditions does this antibody require?
Store at −20°C for long-term storage. Avoid repeated freeze-thaw cycles. Working aliquots can be stored at 4°C for short-term use. The formulation includes 50% glycerol as a cryoprotectant.
Is this antibody specific for the phosphorylated form of CASP8?
Yes. This antibody is designed to detect CASP8 only at the phosphorylation site specified in the product name. Lambda phosphatase treatment eliminates the signal, confirming phospho-specificity.

Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.

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