Date published: 2026-4-29

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Diphtheria Toxin A Antibody (8A4): sc-51870

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Datasheets
  • Diphtheria Toxin A Antibody (8A4) is a mouse monoclonal IgG2a provided at 100 µg/ml
  • raised against Diphtheria toxoid
  • recommended for detection of free A subunits of Diphtheria toxin of Corynebacterium diphtheriae origin by ELISA
  • At present, we have not yet completed the identification of the preferred secondary detection reagent(s) for Diphtheria Toxin A Antibody (8A4). This work is in progress.
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    Diphtheria Toxin A Antibody (8A4) is a mouse monoclonal IgG2a antibody that detects Diphtheria Toxin A from Corynebacterium diphtheriae by enzyme-linked immunosorbent assay (ELISA). Diphtheria Toxin A plays a critical role in the pathogenicity of C. diphtheriae, causing severe effects of diphtheria, including cell death in the upper respiratory tract and systemic complications. Diphtheria Toxin A functions by catalyzing the ADP-ribosylation and subsequent inactivation of elongation factor 2 (eEF-2), essential for protein synthesis in eukaryotic cells. This inhibition of protein synthesis leads to cell death and contributes to the clinical manifestations of the disease. Diphtheria Toxin A consists of a Y-shaped molecule with three distinct domains: a catalytic domain (fragment A), a transmembrane domain, and a receptor-binding domain (fragment B). The unique arrangement of these domains facilitates cellular entry and enhances immune response evasion, making anti-Diphtheria Toxin A antibody (8A4) a valuable tool for studying diphtheria mechanisms and developing potential therapeutic strategies.

    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

    Diphtheria Toxin A Antibody (8A4) References:

    1. Expression of diphtheria toxin A-chain in mature B-cells: a potential approach to therapy of B-lymphoid malignancy.  |  Maxwell, IH., et al. 1992. Leuk Lymphoma. 7: 457-62. PMID: 1493446
    2. DNA based therapy with diphtheria toxin-A BC-819: a phase 2b marker lesion trial in patients with intermediate risk nonmuscle invasive bladder cancer.  |  Gofrit, ON., et al. 2014. J Urol. 191: 1697-702. PMID: 24342146
    3. Development of human monoclonal antibodies to diphtheria toxin: A solution for the increasing lack of equine DAT for therapeutic use?  |  Huygen, K. 2016. Virulence. 7: 613-5. PMID: 27196732
    4. Translocation of diphtheria toxin A-fragment to the cytosol. Role of the site of interfragment cleavage.  |  Moskaug, JO., et al. 1989. J Biol Chem. 264: 15709-13. PMID: 2768283
    5. Cloning, sequence determination, and expression in transfected cells of the coding sequence for the tox 176 attenuated diphtheria toxin A chain.  |  Maxwell, F., et al. 1987. Mol Cell Biol. 7: 1576-9. PMID: 3110596
    6. Diphtheria Toxin A-Resistant Cell Lines Enable Robust Production and Evaluation of DTA-Encoding Lentiviruses.  |  Lange, MJ., et al. 2019. Sci Rep. 9: 8985. PMID: 31222087
    7. Spatiotemporally controllable diphtheria toxin expression using a light-switchable transgene system combining multifunctional nanoparticle delivery system for targeted melanoma therapy.  |  He, M., et al. 2020. J Control Release. 319: 1-14. PMID: 31838205
    8. Tat-dependent conditionally replicating adenoviruses expressing diphtheria toxin A for specifically killing HIV-1-infected cells.  |  Ni, F., et al. 2024. Mol Ther. 32: 2316-2327. PMID: 38734901
    9. Farnesylation of CaaX-tagged diphtheria toxin A-fragment as a measure of transfer to the cytosol.  |  Falnes, PO., et al. 1995. Biochemistry. 34: 11152-9. PMID: 7669773
    10. Identification of a single amino acid substitution in the diphtheria toxin A chain of CRM 228 responsible for the loss of enzymatic activity.  |  Johnson, VG. and Nicholls, PJ. 1994. J Bacteriol. 176: 4766-9. PMID: 8045910

    Ordering Information

    Product NameCatalog #UNITPriceQtyFAVORITES

    Diphtheria Toxin A Antibody (8A4)

    sc-51870
    100 µg/ml
    $322.00