Natural Human Carcino Embryonic Antigen CEA protein (ab2282)



  • NatureNatural
  • SourceNative
  • Amino Acid Sequence
    • SpeciesHuman
    • Molecular weight76 kDa
    • Additional sequence informationThe source is single patient source colon carcinoma liver metastatic tissue. Blood sample from the tissue donors was tested and found negative for HBsAg, HIV-1 and HIV-2 antibodies, and HCV.


Our Abpromise guarantee covers the use of ab2282 in the following tested applications.

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

  • FormLiquid
  • Additional notes

    Blood sample from the tissue donors was tested and found negative for HBsAg, HIV-1 and HIV-2 antibodies, HCV.


    Applications: CEA can be used as general marker in screening and monitoring malignant disease states. CEA is suitable as immunogen for antisera production, tracer for iodination, standard for immunoassay. As preparation is mitogen free it is also suitable for in vitro and in vivo studies of specific immune response (vaccine trials).

  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.

    pH: 7.40
    Constituent: 0.268% PBS

    sterile, preservative free

General Info

  • Alternative names
    • Carcinoembryonic antigen
    • Carcinoembryonic antigen-related cell adhesion molecule 5
    • CD66e
    • CEA
    • Ceacam5
    • DKFZp781M2392
    • Meconium antigen 100
    • OTTHUMP00000199032
    • OTTHUMP00000199033
    • OTTHUMP00000199034
    see all
  • FunctionCell surface glycoprotein that plays a role in cell adhesion and in intracellular signaling. Receptor for E.coli Dr adhesins.
  • Tissue specificityFound in adenocarcinomas of endodermally derived digestive system epithelium and fetal colon.
  • Sequence similaritiesBelongs to the immunoglobulin superfamily. CEA family.
    Contains 7 Ig-like (immunoglobulin-like) domains.
  • Post-translational
    Complex immunoreactive glycoprotein with a MW of 180 kDa comprising 60% carbohydrate.
  • Cellular localizationCell membrane.
  • Information by UniProt

References for Natural Human Carcino Embryonic Antigen CEA protein (ab2282)

ab2282 has not yet been referenced specifically in any publications.

Product Wall

Thank you for your inquiry. I can confirm that all the products you chose are suitable for a CEA human sandwich ELISA and that ab2282 is also a suitable standard/ positive control. I can also confirm that ab2282 is obtained from a single patien...

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Thank you for your enquiry. Protein concentration determination of CEA Ag is not possible with for example BCA method (Pierce) because of high degree of glycosylation of the protein. The glycosylation decreases protein concentration measured by comm...

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Thank you for your enquiry. Following correspondence with the lab I have ascertained that Carcino Embryonic Antigen CEA protein (ab2282) is at least 95% pure and is purified by immunoaffinity purification. I hope this information helps, please ...

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Thank you for your enquiry, we do not know the extinction coefficient but I can provide the protein sequence of the precursor protein from the SwissProt database. Please find the link below: I hope...

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Thank you for your enquiry. The mitogen free CEA that we are offering is filtered and sterile. The sterility of CEA is tested by growth on thioglycollate medium.