Date published: 2026-4-11

1-800-457-3801

SCBT Portrait Logo
Seach Input

caspase-8 p18 Antibody (D-8): sc-5263

4.8(5)
Write a reviewAsk a question

Datasheets
  • caspase-8 p18 Antibody (D-8) is a mouse monoclonal IgG2a κ, cited in 103 publications, provided at 200 µg/ml
  • raised against a recombinant protein corresponding to amino acids 217-350 mapping within the caspase-8 p18 subunit of human origin
  • Anti-caspase-8 p18 Antibody (D-8) is recommended for detection of p18 subunit and precursor of caspase-8 of mouse, rat and human origin by WB, IP, IF, IHC(P) and ELISA
  • caspase-8 p18 Antibody (D-8) is available conjugated to Alexa Fluor® 546 or Alexa Fluor® 594 for WB (RGB), IF, IHC(P) and FCM
  • also available conjugated to Alexa Fluor® 680 or Alexa Fluor® 790 for WB (NIR), IF and FCM; for use with Near-Infrared (NIR) detection systems, such as LI-COR®Odyssey®, iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • m-IgG Fc BP-HRP, m-IgG2a BP-HRP and m-IgGκ BP-HRP are the preferred secondary detection reagents for caspase-8 p18 Antibody (D-8) for WB and IHC(P) applications. These reagents are now offered in bundles with caspase-8 p18 Antibody (D-8) (see ordering information below).
Gene Editing Promo Banner

QUICK LINKS

SEE ALSO...

Caspase-8 p18 Antibody (D-8) is a mouse monoclonal IgG2a kappa light chain antibody that detects the p18 subunit and precursor of caspase-8 in mouse, rat, and human samples through western blotting, immunoprecipitation, immunofluorescence, immunohistochemistry, and enzyme-linked immunosorbent assay. caspase-8 p18 (D-8) antibody is available in both conjugated and non-conjugated forms, providing flexibility for various experimental needs. caspase-8 plays a crucial role in the apoptotic pathway, acting as an initiator caspase that activates downstream effector caspases by cleaving their inactive precursors. This activation cascade is vital for programmed cell death, particularly in response to signals from tumor necrosis factor receptor superfamily members such as TNFRSF1A and TNFRSF6/FAS. caspase-8 forms a complex with the adaptor molecule FADD, known as the death-inducing signaling complex (DISC), which is essential for activation. Once activated, caspase-8 dissociates from the DISC and further propagates the apoptotic signal by activating other caspases. The heterodimeric structure of caspase-8, consisting of the p18 and p10 subunits, is predominantly expressed in peripheral blood leukocytes, thymus, liver, and spleen, highlighting importance in immune regulation. Mutations in the CASP8 gene, which encodes for caspase-8, can lead to caspase-8 deficiency disorder (CASP8D), a condition characterized by splenomegaly and impaired apoptosis of peripheral blood leukocytes, potentially resulting in immunodeficiency due to compromised activation of T lymphocytes, natural killer cells, and B lymphocytes.

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

caspase-8 p18 Antibody (D-8) References:

  1. Anticancer drugs induce caspase-8/FLICE activation and apoptosis in the absence of CD95 receptor/ligand interaction.  |  Wesselborg, S., et al. 1999. Blood. 93: 3053-63. PMID: 10216102
  2. Involvement of FADD and caspase-8 signalling in detachment-induced apoptosis.  |  Rytömaa, M., et al. 1999. Curr Biol. 9: 1043-6. PMID: 10508619
  3. The atomic-resolution structure of human caspase-8, a key activator of apoptosis.  |  Watt, W., et al. 1999. Structure. 7: 1135-43. PMID: 10508785
  4. Pro-caspase-8 is predominantly localized in mitochondria and released into cytoplasm upon apoptotic stimulation.  |  Qin, ZH., et al. 2001. J Biol Chem. 276: 8079-86. PMID: 11102441
  5. Caspase 8 activation independent of Fas (CD95/APO-1) signaling may mediate killing of B-chronic lymphocytic leukemia cells by cytotoxic drugs or gamma radiation.  |  Jones, DT., et al. 2001. Blood. 98: 2800-7. PMID: 11675354
  6. p38-MAPK signals survival by phosphorylation of caspase-8 and caspase-3 in human neutrophils.  |  Alvarado-Kristensson, M., et al. 2004. J Exp Med. 199: 449-58. PMID: 14970175
  7. Proteasomal regulation of caspase-8 in cancer cell apoptosis.  |  Fiandalo, MV., et al. 2013. Apoptosis. 18: 766-76. PMID: 23456622
  8. The Fas death factor.  |  Nagata, S. and Golstein, P. 1995. Science. 267: 1449-56. PMID: 7533326
  9. Contenders in FasL/TNF death signaling.  |  Cleveland, JL. and Ihle, JN. 1995. Cell. 81: 479-82. PMID: 7758103
  10. In vitro activation of CPP32 and Mch3 by Mch4, a novel human apoptotic cysteine protease containing two FADD-like domains.  |  Fernandes-Alnemri, T., et al. 1996. Proc Natl Acad Sci U S A. 93: 7464-9. PMID: 8755496
  11. FLICE is activated by association with the CD95 death-inducing signaling complex (DISC).  |  Medema, JP., et al. 1997. EMBO J. 16: 2794-804. PMID: 9184224
  12. Bcl-xL functions downstream of caspase-8 to inhibit Fas- and tumor necrosis factor receptor 1-induced apoptosis of MCF7 breast carcinoma cells.  |  Srinivasan, A., et al. 1998. J Biol Chem. 273: 4523-9. PMID: 9468507

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

caspase-8 p18 Antibody (D-8)

sc-5263
200 µg/ml
$322.00

caspase-8 p18 Antibody (D-8): m-IgG Fc BP-HRP Bundle

sc-528136
200 µg Ab; 10 µg BP
$361.00

caspase-8 p18 Antibody (D-8): m-IgGκ BP-HRP Bundle

sc-520440
200 µg Ab, 40 µg BP
$361.00

caspase-8 p18 Antibody (D-8): m-IgG2a BP-HRP Bundle

sc-547030
200 µg Ab; 10 µg BP
$361.00

caspase-8 p18 Antibody (D-8) Alexa Fluor® 546

sc-5263 AF546
200 µg/ml
$364.00

caspase-8 p18 Antibody (D-8) Alexa Fluor® 594

sc-5263 AF594
200 µg/ml
$364.00

caspase-8 p18 Antibody (D-8) Alexa Fluor® 680

sc-5263 AF680
200 µg/ml
$364.00

caspase-8 p18 Antibody (D-8) Alexa Fluor® 790

sc-5263 AF790
200 µg/ml
$364.00

Is this Ab able to detect also the full length Caspase-8? Which size (kDA) should I expect? While using this Ab I was only able to detect the cleaved Casp-8 but in the datasheet you write that you should also detect the precursor (full length?) Casp-8?

Asked by: VV2021
Thank you for your question. Anti-caspase-8 p18 Antibody (D-8): sc-5263 is specific against a recombinant protein corresponding to amino acids 217-350 mapping within the caspase-8 p18 subunit of human origin. It will recognize this sequence and Caspase-8 proteins containing this sequence, i.e. the precursor protein.
Answered by: Tech Support Europe
Date published: 2026-03-09

I need to use an antibody to detect the protein in samples of bovine origin. Do you know if this mouse monoclonal antibody will work?

Asked by: jerojero
Please contact our Technical Service Department and we would be happy to perform sequence analysis and review our data to answer any questions you may have about additional species reactivity.
Answered by: Technical Support 9
Date published: 2017-01-11

What is the recommended secondary reagent to be used with this mouse monoclonal primary?

Asked by: jerojero
We recommend using one our exclusive Mouse IgG Binding Proteins as a secondary detection reagent. A complete list of available binding proteins is available on our website here: https://www.scbt.com/scbt/browse/support-products-mouse-igg-binding-proteins/_/N-ecrety
Answered by: Technical Support 9
Date published: 2017-01-11
  • y_2026, m_4, d_9, h_7CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.43
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_3
  • loc_en_US, sid_5263, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 105ms
  • QUESTIONS, PRODUCT
Rated 5 out of 5 by from OutstandingVery nice western data; also great IF and IHC staining
Date published: 2017-01-29
Rated 5 out of 5 by from Great antibody for IFThe caspase-8 p18 Antibody (D-8): sc-5263 provides strong staining pattern for immunofluorescence localized to the cytoplasm and nucleus. This antibody has also been cited over 30 times for further verification.
Date published: 2017-01-12
Rated 5 out of 5 by from Good results with rat mammary glands in WBGood results with rat mammary glands in WB. - SCBT Publication Review
Date published: 2015-01-15
Rated 4 out of 5 by from Works well in Western with mouse ANAWorks well in Western with mouse ANA-1 macrophages. - SCBT Publication Review
Date published: 2014-03-19
Rated 5 out of 5 by from Used with CHPUsed with CHP-212 cells in Western. - SCBT Publication Review
Date published: 2013-09-01
  • y_2026, m_4, d_9, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.43
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_5
  • loc_en_US, sid_5263, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 16ms
  • REVIEWS, PRODUCT
caspase-8 p18 Antibody (D-8) is rated 4.8 out of 5 by 5.
  • y_2026, m_4, d_9, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.43
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_5
  • loc_en_US, sid_5263, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 104ms
  • REVIEWS, PRODUCT