• Product nameAnti-EpCAM antibody [AUA1]
    See all EpCAM primary antibodies
  • Description
    Mouse monoclonal [AUA1] to EpCAM
  • Tested applicationsSuitable for: ICC/IF, Flow Cyt, ELISA, IHC-Pmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    LoVo cell line preparation (Human).

  • Positive control
    • Ab20160 gave a positive signal in a human breast carcinoma formalin-fixed paraffin-embedded tissue section. This antibody also gave a positive signal in Flow Cytometry in methanol-fixed DU145 cells.
  • General notes

    Cross reacts with breast carcinomas, kidney tubules, tonsil crypt epithelium and cells in some serious effusions. Useful in characterisation of all epithelial cells.


  • FormLiquid
  • Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
  • Storage bufferpH: 7.40
    Preservative: 0.02% Sodium azide
    Constituents: PBS, 50% Glycerol
  • Concentration information loading...
  • PurityProtein G purified
  • Primary antibody notesCross reacts with breast carcinomas, kidney tubules, tonsil crypt epithelium and cells in some serious effusions. Useful in characterisation of all epithelial cells.
  • ClonalityMonoclonal
  • Clone numberAUA1
  • MyelomaP3-x63-Ag8
  • IsotypeIgG1
  • Light chain typekappa
  • Research areas


Our Abpromise guarantee covers the use of ab20160 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
ICC/IF Use at an assay dependent concentration. Used at a dilution of 1/250 for 1 hr - see Abreview for further information.
Flow Cyt Use 1µg for 106 cells. (methanol fixed cells)

ab170190-Mouse monoclonal IgG1, is suitable for use as an isotype control with this antibody.
ELISA Use at an assay dependent concentration.
IHC-P Use a concentration of 5 µg/ml. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.


  • 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

Anti-EpCAM antibody [AUA1] images

  • IHC image of ab20160 staining in human breast carcinoma formalin fixed paraffin embedded tissue section, performed on a Leica BondTM system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab20160, 10µg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.

    For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.

  • Overlay histogram showing DU145 cells stained with ab20160 (red line). The cells were fixed with methanol (5 min) and incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab20160, 1µg/1x106 cells) for 30 min at 22°C. The secondary antibody used was DyLight® 488 goat anti-mouse IgG (H+L) (ab96879) at 1/500 dilution for 30 min at 22°C. Isotype control antibody (black line) was mouse IgG1 [ICIGG1] (ab91353, 2µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed. This antibody gave a slightly decreased signal in DU145 cells fixed with 4% paraformaldehyde (10 min) used under the same conditions.

    Please note that Abcam does not have data for use of this antibody on non-fixed cells. We welcome any customer feedback.
  • ab20160 at a 1/250 dilution staining human non small cell lung cancer cells (H358 cells) by immunocytochemistry. The antibody was incubated with the cells for 1 hour and then detected using an Alexa-Fluor® 546 conjugated goat anti mouse antibody.

    This image is courtesy of an Abreview submitted by an anonymous researcher on 30 January 2006.

    See Abreview

References for Anti-EpCAM antibody [AUA1] (ab20160)

This product has been referenced in:
  • Gu Y  et al. Detection of circulating tumor cells in prostate cancer based on carboxylated graphene oxide modified light addressable potentiometric sensor. Biosens Bioelectron 66:24-31 (2015). Read more (PubMed: 25460877) »
  • Sukhdeo K  et al. Multiplex flow cytometry barcoding and antibody arrays identify surface antigen profiles of primary and metastatic colon cancer cell lines. PLoS One 8:e53015 (2013). ICC/IF ; Human . Read more (PubMed: 23308131) »

See all 6 Publications for this product

Product Wall

Application Flow Cytometry
Sample Human Cell (Hes3 Stem cell)
Permeabilization No
Specification Hes3 Stem cell

Abcam user community

Verified customer

Submitted Oct 21 2015

Application Immunocytochemistry/ Immunofluorescence
Sample Human Cultured Cells (breast cancer cell line(MCF-7))
Permeabilization No
Specification breast cancer cell line(MCF-7)
Fixative Formaldehyde

Mr. Chang Su Jeon

Verified customer

Submitted Aug 20 2015

Unfortunately, we do not sell ab20160 conjugated to biotin. However, we do sell a kit: EasyLink Biotin (type A) Conjugation Kit (3 x 100µg Biotin) (ab102864) which allows you to conjugate ab20160 to biotin yourself which may be of interest to you.

Thank you for your enquiry and interest in our products.

I can confirm that this particular antibody has not yet been tested in Western blot (WB) application so we do not have do not have data to share with our customers. We have other antibo...

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Abcam guarantees this product to work in the species/application used in this Abreview.
Application ELISA
Sample Human Cell (Circullating Tumor Cells)
Specification Circullating Tumor Cells
Blocking step Serum as blocking agent for 25 minute(s) · Concentration: 2µg/mL · Temperature: 25°C
Type Other

Mr. Gabriel Ortega

Verified customer

Submitted Dec 20 2012

Thank you for confirming these details and for your cooperation. The details provided enable us to closely monitor the quality of our products.

I am sorry this product did not perform as stated on the datasheet and for the inconvenience this...

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Thank you for contacting us.

As ab20160, ab89992, ab8666 have as yet not been tested with mouse samples, I would therefore not be able to say if they would cross react with the mouse tissue or not. I think a different antibody which may be mo...

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Thank you for your telephone call on Friday.

As discussed on the telephone, we recommend not to dilute before storing as antibodies not stable at lower concentrations. I can suggest to aliquot and freezewithout diluting in 10 ul aliquots (no...

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Thank you for contacting us.

I am sorry that the vial you received did not contain the full amount of the product and I apologize for the inconvenience. I have issued a free of charge replacement vial.

Please do not hesitate to co...

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Abcam guarantees this product to work in the species/application used in this Abreview.
Application Immunocytochemistry/ Immunofluorescence
Sample Human Cell (non small cell lung cancer cell)
Specification non small cell lung cancer cell
Fixative Formaldehyde
Blocking step Serum as blocking agent for 20 minute(s) · Concentration: 10%

Abcam user community

Verified customer

Submitted Jan 30 2006