Anti-Bacillus anthracis spore antigen antibody [SA26] (ab2281)


  • Product name
    Anti-Bacillus anthracis spore antigen antibody [SA26]
  • Description
    Mouse monoclonal [SA26] to Bacillus anthracis spore antigen
  • Specificity
    No cross reactivity has been found in ELISA with B.anthracis vegetative cells, B.globiglii, B.subtilis and B.cereus spores.
  • Tested applications
    Suitable for: ELISA, WBmore details
  • Immunogen

    Bacillusanthracis spore extract.

  • General notes

    Abcam is committed to meeting high standards of ethical manufacturing and as such, we will be discontinuing this product, which has been generated by the ascites method, within the next year. We are sorry for any inconvenience this may cause. If you would like help finding an alternative product, please do not hesitate to contact our scientific support team.


  • Form
  • Storage instructions
    Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
  • Storage buffer
    PBS, pH 7.2, sodium azide, 0.1%
  • Concentration information loading...
  • Purity
    Protein G purified
  • Purification notes
    This product has been shown to be 95% pure by 7.5 % SDS-PAGE.
  • Clonality
  • Clone number
  • Myeloma
  • Isotype
  • Light chain type
  • Research areas


Our Abpromise guarantee covers the use of ab2281 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
ELISA Use at an assay dependent concentration.

Can be used in a sandwich ELISA along with ab1994.

WB Use a concentration of 2 µg/ml. Detects a band of approximately 92-94 kDa.

(Under non-reducing conditions)


  • Relevance
    Bacillus anthracis is an aerobic spore forming bacterium that causes anthrax, an acute infectious disease of cattle, sheep, goats, camels, antelopes and other herbivores. Infection can occur in humans when they are exposed to infected animals or tissue from infected animals via three routes: cutaneous, inhalation and gastrointestinal. B. anthracis spores persist in the soil for many years as they are resistant to heat, cold, radiation, desiccation, and disinfectants. In vivo, B anthracis produces a polypeptide (polyglutamic acid) capsule that protects it from phagocytosis. The virulence factors of B anthracis are its capsule and three component toxin, both encoded on plasmids.


  • Lane 1 : Anti-Bacillus anthracis spore antigen antibody [SA26] (ab2281)
    Lane 2 : Clone SA27

    Lane 1 : B. anthracis spore
    Lane 2 : B. anthracis spore

    Performed under reducing conditions.

    10% SDS-PAGE


This product has been referenced in:
  • Sanz P  et al. Detection of Bacillus anthracis spore germination in vivo by bioluminescence imaging. Infect Immun 76:1036-47 (2008). Read more (PubMed: 18195028) »
  • Williams DD & Turnbough CL Surface layer protein EA1 is not a component of Bacillus anthracis spores but is a persistent contaminant in spore preparations. J Bacteriol 186:566-9 (2004). Read more (PubMed: 14702325) »

See all 2 Publications for this product

Customer reviews and Q&As

Thank you for your patience.

I have hard back from the supplying lab's specialistwith more information regarding the specificity of the ab2281 [SA26]:

Here are the comments from our specialist:

In different formats SA26 w...

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Thank you for contacting us.

I hear back from the supplying lab:

According to our info ab2281 [SA26] is against anthrax spore so at the moment I unfortunately do not have any other info to give. As soon as I got the details for the...

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Thank you for your patience.

The lab we receive this product from, let me know the following today:

"I discussed with our specialist and he confirmed that according to our info ab2281[SA26] is against anthrax spore".

The ...

Read More

Thank you for your enquiry. The concentration of the lot is 6.4 mg/ml.


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