Validated using a knockout cell line

Recombinant Anti-Pro Caspase-8 antibody [EPR162] - BSA and Azide free (ab208774)


  • Product name

    Anti-Pro Caspase-8 antibody [EPR162] - BSA and Azide free
    See all Pro Caspase-8 primary antibodies
  • Description

    Rabbit monoclonal [EPR162] to Pro Caspase-8 - BSA and Azide free
  • Host species

  • Specificity

    Theoretically, this antibody should recognize p55/54, p43/41 and p18. However, in our internal tests on parent antibody ab108333, it only recognized pro caspase 8. We tested it side by side with ab32397. Both antibodies are KO validated, and ab32397 recognizes pro-caspase 8 and cleavage caspase 8.

  • Tested applications

    Suitable for: IHC-P, WBmore details
    Unsuitable for: Flow Cyt or IP
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Synthetic peptide within Human Pro Caspase-8 aa 200-300 (internal sequence). The exact sequence is proprietary.
    Database link: Q14790

  • Positive control

    • Jurkat, IM9, HepG2, HeLa, and HL60 cell lysates; Human tonsil tissue and Human hepatocellular carcinoma tissue; HeLa cells.
  • General notes

    ab208774 is the carrier-free version of ab108333 This format is designed for use in antibody labeling, including fluorochromes, metal isotopes, oligonucleotides, enzymes.


    Our carrier-free formats are supplied in a buffer free of BSA, sodium azide and glycerol for higher conjugation efficiency.

    Use our conjugation kits  for antibody conjugates that are ready-to-use in as little as 20 minutes with <1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

    Ab208774 is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm.

    Maxpar® is a trademark of Fluidigm Canada Inc.

    Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.

    Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents.

    This product is a recombinant rabbit monoclonal antibody.



Our Abpromise guarantee covers the use of ab208774 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
IHC-P Use at an assay dependent concentration.

Antigen retrieval is recommended.

WB Use at an assay dependent concentration. Detects a band of approximately 55 kDa (predicted molecular weight: 55 kDa).
  • Application notes
    Is unsuitable for Flow Cyt or IP.
  • Target

    • Relevance

      Disease: Defects in CASP8 are the cause of caspase-8 deficiency (CASP8D) [MIM:607271]. CASP8D is a 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.
    • Database links


    • ab108333, at 1/100 dilution, staining pro Pro Caspase-8 in paraffin-embedded human tonsil tissue by Immunohistochemistry.

      This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab108333).

    • ab108333, at 1/100 dilution, staining Pro Caspase-8 in paraffin-embedded human hepatocellular carcinoma by Immunohistochemistry.

      This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab108333).


    This product has been referenced in:

    • Stutz N  et al. The Fas apoptotic pathway in cutaneous T-cell lymphomas: Frequent expression of phenotypes associated with resistance to apoptosis. J Am Acad Dermatol : (2012). IHC ; Human . Read more (PubMed: 22884443) »
    See 1 Publication for this product

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