• Species Reactivity

  Human

• Specificity

  Detects human EpCAM/TROP-1 in ELISAs.

• Source

  Monoclonal Mouse IgG    _2B Clone # 158206

• Purification

  Protein A or G purified from hybridoma culture supernatant

• Immunogen

  Mouse myeloma cell line NS0-derived recombinant human EpCAM/TROP-1    
  Extracellular domain

• Formulation

  Lyophilized from a 0.2 μm filtered solution in PBS and NaCl with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.

• Label

  Unconjugated

Applications

• Recommended    
  Concentration

  Sample

• Flow Cytometry

  2.5 µg/10    ⁶ cells

  See below

• 
  

• CyTOF-ready

  Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

• 
  

• Human EpCAM/TROP-1 Sandwich Immunoassay

  Reagent    

• ELISA Capture (Matched Antibody Pair)

  2-8 µg/mL 

  Human      
  EpCAM/TROP‑1 Antibody (Catalog # )

• ELISA Detection (Matched Antibody Pair)

  0.1-0.4 µg/mL 

  Human EpCAM/TROP‑1 Biotinylated Antibody (Catalog # )

• ELISA Standard

   

  Recombinant Human EpCAM/TROP1 Fc Chimera Protein, CF (Catalog # )

• 
  

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Data Examples

Preparation and Storage

• Reconstitution

  Reconstitute at 0.5 mg/mL in sterile PBS.

• Shipping

  The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C

• Stability & Storage

  Use a manual defrost freezer and avoid repeated freeze-thaw cycles.    

• 12 months from date of receipt, -20 to -70 °C as supplied.

• 1 month, 2 to 8 °C under sterile conditions after reconstitution.

• 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: EpCAM/TROP1

Epithelial Cellular Adhesion Molecule (EpCAM), also known as KS1/4, gp40, GA733-2, 17-1A, and TROP-1, is a 40 kDa transmembrane glycoprotein composed of a 242 amino acid (aa) extracellular domain with two epidermal-growth-factor-like (EGF-like) repeats within the cysteine-rich N-terminal region, a 23 aa transmembrane domain, and a 26 aa cytoplasmic domain. Human and mouse EpCAM share 82% aa sequence identity. In human, EpCAM also shares 49% aa sequence homology with TROP-2/EGP-1. During embryonic development, EpCAM is detected in fetal lung, kidney, liver, pancreas, skin, and germ cells. In adults, human EpCAM is detected in basolateral cell membranes of all simple, pseudo-stratified, and transitional epithelia, but is not detected in normal squamous stratified epithelia, mesenchymal tissue, muscular tissue, neuro-endocrine tissue, or lymphoid tissue (1). EpCAM expression has been found to increase in actively proliferating epithelia tissues and during adult liver regeneration (1, 2). EpCAM expression is also found to increase in human malignant neoplasias, with most carcinoma expressing EpCAM including those of arising from squamousal epithelia (1). EpCAM has been shown function as a homophilic Ca²⁺ independent adhesion molecule (3). Homophilic adhesion via EpCAM requires the interaction of both EGF-like repeats, with the first EGF-like repeat mediating reciprocal interaction between EpCAM molecules on opposing cells, while the second repeat is involved in lateral interaction of EpCAM. Lateral interaction of EpCAM lead to the formation of dimers and tetramers (4). During homophilic adhesion the cytoplasmic tail of EpCAM interacts with the actin cytoskeleton via a direct association alpha -Actinin (5).

• References:

1. Balzar, M. et al. (1999) J. Mol. Med. 77:699.

2. Boer, C.J, et al. (1999) J. Pathol. 188:201.

3. Litvinow, S.V. et al. (1994) J. Cell Biol. 125:437.

4. Balzar, M. et al. (2001) Mol. Cell. Biol. 21:2570.

5. Balzar, M. et al. (1998) Mol. Cell. Biol. 18:4388.

• Long Name:

  Epithelial Cell Adhesion Molecule

• Entrez Gene IDs:

  4072 (Human); 17075 (Mouse)

• Alternate Names:

  17-1A; 323/A3; ACSTD1; antigen identified by monoclonal AUA1; CD326 antigen; CD326; Cell surface glycoprotein Trop-1; chromosome 4, surface marker (35kD glycoprotein); DIAR5; EGP; EGP-2; EGP314; EGP40; EpCAM; epithelial cell adhesion molecule; Epithelial cell surface antigen; Epithelial glycoprotein 314; Epithelial glycoprotein; ESA; GA733-2; GA733-2EGP34; gp40; hEGP314; HNPCC8; KS 1/4 antigen; KS1/4; KSAHEA125; M1S2; M4S1; M4S1Ly74; Major gastrointestinal tumor-associated protein GA733-2; MIC18MH99; MOC31; TACST-1; TACSTD1; TROP1; TROP1CD326; Tumor-associated calcium signal transducer 1CO-17A