• Product nameAnti-EpCAM antibody [323/A3]
    See all EpCAM primary antibodies
  • Description
    Mouse monoclonal [323/A3] to EpCAM
  • SpecificityWe have data to indicate that this antibody may not cross react with Rat. However, this has not been conclusively tested and expression levels may vary in certain cell lines/tissues.
  • Tested applicationsSuitable for: WB, IP, IHC-P, ICC, Flow Cytmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Human breast cancer MCF-7 cells.

  • Positive control
    • A431, MCF-7 and SW480 cell lines and breast carcinoma tissue.


  • FormLiquid
  • Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid repeated freeze / thaw cycles.
  • Storage bufferPreservative: 15mM Sodium Azide
    Constituents: PBS, pH 7.4
  • Concentration information loading...
  • PurityProtein A purified
  • Purification notesPurified from cell culture supernatant by protein A affinity chromatography, purity > 95% (by SDS-PAGE).
  • ClonalityMonoclonal
  • Clone number323/A3
  • IsotypeIgG1
  • Research areas


Our Abpromise guarantee covers the use of ab85987 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
WB Use a concentration of 1 - 4 µg/ml. Predicted molecular weight: 35 kDa.
IP Use a concentration of 1 - 4 µg/ml. per 100-500ug of protein in 1ml lysate.
IHC-P Use a concentration of 1 - 10 µg/ml. Perform enzymatic antigen retrieval before commencing with IHC staining protocol.
ICC Use a concentration of 1 - 10 µg/ml.
Flow Cyt Use at an assay dependent concentration. ab170190-Mouse monoclonal IgG1, is suitable for use as an isotype control with this antibody.


  • FunctionMay act as a physical homophilic interaction molecule between intestinal epithelial cells (IECs) and intraepithelial lymphocytes (IELs) at the mucosal epithelium for providing immunological barrier as a first line of defense against mucosal infection. Plays a role in embryonic stem cells proliferation and differentiation. Up-regulates the expression of FABP5, MYC and cyclins A and E.
  • Tissue specificityHighly and selectively expressed by undifferentiated rather than differentiated embryonic stem cells (ESC). Levels rapidly diminish as soon as ESC's differentiate (at protein levels). Expressed in almost all epithelial cell membranes but not on mesodermal or neural cell membranes. Found on the surface of adenocarcinoma.
  • Involvement in diseaseDefects in EPCAM are the cause of diarrhea type 5 (DIAR5) [MIM:613217]. It is an intractable diarrhea of infancy characterized by villous atrophy and absence of inflammation, with intestinal epithelial cell dysplasia manifesting as focal epithelial tufts in the duodenum and jejunum.
    Defects in EPCAM are a cause of hereditary non-polyposis colorectal cancer type 8 (HNPCC8) [MIM:613244]. HNPCC is a disease associated with marked increase in cancer susceptibility. It is characterized by a familial predisposition to early-onset colorectal carcinoma (CRC) and extra-colonic tumors of the gastrointestinal, urological and female reproductive tracts. HNPCC is reported to be the most common form of inherited colorectal cancer in the Western world. Clinically, HNPCC is often divided into two subgroups. Type I is characterized by hereditary predisposition to colorectal cancer, a young age of onset, and carcinoma observed in the proximal colon. Type II is characterized by increased risk for cancers in certain tissues such as the uterus, ovary, breast, stomach, small intestine, skin, and larynx in addition to the colon. Diagnosis of classical HNPCC is based on the Amsterdam criteria: 3 or more relatives affected by colorectal cancer, one a first degree relative of the other two; 2 or more generation affected; 1 or more colorectal cancers presenting before 50 years of age; exclusion of hereditary polyposis syndromes. The term 'suspected HNPCC' or 'incomplete HNPCC' can be used to describe families who do not or only partially fulfill the Amsterdam criteria, but in whom a genetic basis for colon cancer is strongly suspected. Note=HNPCC8 results from heterozygous deletion of 3-prime exons of EPCAM and intergenic regions directly upstream of MSH2, resulting in transcriptional read-through and epigenetic silencing of MSH2 in tissues expressing EPCAM.
  • Sequence similaritiesBelongs to the EPCAM family.
    Contains 1 thyroglobulin type-1 domain.
  • Post-translational
    Hyperglycosylated in carcinoma tissue as compared with autologous normal epithelia. Glycosylation at Asn-198 is crucial for protein stability.
  • Cellular localizationLateral cell membrane. Cell junction > tight junction. Co-localizes with CLDN7 at the lateral cell membrane and tight junction.
  • Information by UniProt
  • Database links
  • Alternative names
    • 17 1A antibody
    • 323/A3 antibody
    • Adenocarcinoma associated antigen antibody
    • Adenocarcinoma-associated antigen antibody
    • Antigen identified by monoclonal antibody AUA1 antibody
    • AUA1 antibody
    • CD326 antibody
    • CD326 antigen antibody
    • Cell surface glycoprotein Trop 1 antibody
    • Cell surface glycoprotein Trop 2 antibody
    • Cell surface glycoprotein Trop-1 antibody
    • CO 17A antibody
    • CO17 1A antibody
    • CO17A antibody
    • DIAR5 antibody
    • EGP 2 antibody
    • EGP antibody
    • EGP2 antibody
    • EGP314 antibody
    • EGP40 antibody
    • Ep CAM antibody
    • Ep-CAM antibody
    • EPCAM antibody
    • EPCAM_HUMAN antibody
    • Epithelial cell adhesion molecule antibody
    • Epithelial Cell Adhesion Molecule Intracellular Domain (EpCAM-ICD) antibody
    • Epithelial cell surface antigen antibody
    • Epithelial cellular adhesion molecule antibody
    • Epithelial glycoprotein 1 antibody
    • Epithelial glycoprotein 314 antibody
    • Epithelial glycoprotein antibody
    • ESA antibody
    • GA733 1 antibody
    • GA733 2 antibody
    • GA733-2 antibody
    • gastrointestinal tumor-associated antigen 2, 35-KD glycoprotein antibody
    • hEGP 2 antibody
    • hEGP314 antibody
    • HNPCC8 antibody
    • Human epithelial glycoprotein 2 antibody
    • KS 1/4 antigen antibody
    • KS1/4 antibody
    • KSA antibody
    • Lymphocyte antigen 74 antibody
    • M1S 1 antibody
    • M1S2 antibody
    • M4S1 antibody
    • Major gastrointestinal tumor associated protein GA733 2 antibody
    • Major gastrointestinal tumor-associated protein GA733-2 antibody
    • Membrane component chromosome 4 surface marker (35kD glycoprotein) antibody
    • Membrane component, chromosome 4, surface marker 1 antibody
    • Membrane component, chromosome 4, surface marker antibody
    • MIC18 antibody
    • MK 1 antibody
    • TACD1 antibody
    • TACSTD1 antibody
    • TROP1 antibody
    • Tumor associated calcium signal transducer 1 antibody
    • Tumor associated calcium signal transducer 2 precursor antibody
    • Tumor-associated calcium signal transducer 1 antibody
    see all

References for Anti-EpCAM antibody [323/A3] (ab85987)

This product has been referenced in:
  • Winter MJ  et al. The epithelial cell adhesion molecule (Ep-CAM) as a morphoregulatory molecule is a tool in surgical pathology. Am J Pathol 163:2139-48 (2003). Read more (PubMed: 14633587) »
  • Kirman I  et al. Naturally occurring antibodies to epithelial cell adhesion molecule (EpCAM). Dig Dis Sci 48:2306-9 (2003). Read more (PubMed: 14714617) »

See all 7 Publications for this product

Product Wall

Thank you again for sending your customer's protocol. The protocol looks correct, and my only concern is that the concentration of the antibody is lower than what is recommended on the datasheet, 1 - 4 ug/ml, or a dilution of 1/250 - 1/1000. Has the cu...

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