EpCAM/TROP1 Antibody

Novus Biologicals, part of Bio-Techne | Catalog # NBP2-27107

Novus Biologicals, part of Bio-Techne
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NBP2-27107
NBP2-27107SS
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Key Product Details

Species Reactivity

Validated:

Human, Mouse, Primate

Cited:

Human, Mouse

Applications

Validated:

Immunohistochemistry, Immunohistochemistry-Paraffin, Western Blot

Cited:

IF/IHC, Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Rabbit IgG

Concentration

1.0 mg/ml

View all EpCAM/TROP1 Antibodies »

Product Specifications

Immunogen

A portion of amino acids 250-350 of human EpCAM/CD326 was used as the immunogen.

Clonality

Polyclonal

Host

Rabbit

Isotype

IgG

Scientific Data Images for EpCAM/TROP1 Antibody

Western Blot: EpCAM/TROP1 Antibody [NBP2-27107]

Western Blot: EpCAM/TROP1 Antibody [NBP2-27107]

Western Blot: EpCAM/TROP1 Antibody [NBP2-27107] - Analysis of EpCAM using EpCAM antibody. Human HCT116 cell lysate in the 1) absence and 2) presence of immunizing peptide and 3) mouse NIH 3T3 lysate probed with 3 ug/mL of EpCAM antibody. Goat anti-rabbit Ig HRP secondary antibody and PicoTect ECL substrate solution were used for this test.
Immunohistochemistry-Paraffin: EpCAM/TROP1 Antibody [NBP2-27107]

Immunohistochemistry-Paraffin: EpCAM/TROP1 Antibody [NBP2-27107]

Immunohistochemistry-Paraffin: EpCAM/TROP1 Antibody [NBP2-27107] - FFPE human colon stained with EpCAM antibody at 1:200, peroxidase-conjugate and DAB chromogen.

Applications for EpCAM/TROP1 Antibody

Application
Recommended Usage

Immunohistochemistry-Paraffin

1:400 - 1:800

Western Blot

3 - 5 ug/mL
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Protein A purified

Formulation

PBS

Preservative

0.05% Sodium Azide

Concentration

1.0 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

Background: EpCAM/TROP1

Epithelial cell adhesion molecule (EpCAM), also known as TROP1 and CD326, is a type I transmembrane glycoprotein that plays a role in a number of cellular processes including adhesion, signaling, maintaining stemness, proliferation, migration, and invasion (1,2). The human EpCAM protein is 314 amino acids (aa) in length with a theoretical molecular weight (MW) of ~35 kDa (1,3,4). The EpCAM protein includes a signal peptide, an extracellular N-terminal domain, a thyroglobulin type-1 domain, a carboxyl-terminal domain, a single-pass transmembrane domain, and an intracellular domain (1,3). The protein is highly conserved and has approximately 81% aa sequence identity between human and mouse (5). Trophoblast cell-surface antigen 2 (TROP2) also shares ~67% aa sequence similarity with EpCAM (1,5). While both EpCAM and TROP2 are cell surface markers expressed in the epithelium, their expression levels typically do not correlate (5). EpCAM is expressed in normal epithelial tissue and elevated expression is observed in many epithelial carcinomas (1-3) Patient tumor samples with increased EpCAM expression have been associated with poor prognosis (1). Given EpCAM's elevated expression in tumors, it has become a potential target for cancer therapy approaches, including monoclonal antibody treatment and anti-EpCAM trispecific antibodies (1,5).

EpCAM functions as an intracellular signaling molecule and contributes to regulation of epithelial-to-mesenchymal (EMT) transition (4,5). EpCAM is cleaved during the process of regulated intramembrane proteolysis (RIP) (4,5). Initial cleavage occurs at the membrane via a disintegrin and metalloprotease 17 (ADAM17) which releases EpCAM's extracellular domain (EpEx) (4,5). A secondary cleavage is mediated by presenilin 2 (PSEN2) which releases EpCAM's cytoplasmic trail (EpICD) (4,5). EpICD translocates to the nucleus where it associates with beta-catenin, FHL-2, and LEF-1 and induces transcription of genes related to EMT and tumor growth (4,5). EpCAM has also been shown to regulate structure and functionality of the apical junction complex of cells through direct interaction with claudin-7 and association with E-cadherin (2,5). Loss of EpCAM disrupts adherins junction and tight junction structure and function (2).

References

1. Mohtar MA, Syafruddin SE, Nasir SN, Low TY. Revisiting the Roles of Pro-Metastatic EpCAM in Cancer. Biomolecules. 2020; 10(2):255. https://doi.org/10.3390/biom10020255

2. Huang L, Yang Y, Yang F, et al. Functions of EpCAM in physiological processes and diseases (Review). Int J Mol Med. 2018; 42(4):1771-1785. https://doi.org/10.3892/ijmm.2018.3764

3. Brown TC, Sankpal NV, Gillanders WE. Functional Implications of the Dynamic Regulation of EpCAM during Epithelial-to-Mesenchymal Transition. Biomolecules. 2021; 11(7):956. https://doi.org/10.3390/biom11070956

4. Uniprot (P16422)

5. Schnell U, Cirulli V, Giepmans BN. EpCAM: structure and function in health and disease. Biochim Biophys Acta. 2013; 1828(8):1989-2001. https://doi.org/10.1016/j.bbamem.2013.04.018

Long Name

Epithelial Cell Adhesion Molecule

Alternate Names

17-1A, CD326, GA733-2, gp40, KS1/4, M4S1, TACSTD1, TROP1

Gene Symbol

EPCAM

UniProt

O55159 (Rat)

Additional EpCAM/TROP1 Products

Product Documents for EpCAM/TROP1 Antibody

Product Datasheets

Certificate of Analysis

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Product Specific Notices for EpCAM/TROP1 Antibody

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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