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Recombinant Human EpCAM/TROP1 Avi-tag His-tag Protein, CF

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Measured by its binding ability in a functional ELISA. Biotinylated Recombinant Human EpCAM/TROP‑1 Avi-tag His-tag (Catalog # AVI9277) binds to Human EpCAM/TROP-1 Antibody (AF960) with a ED50 of 0.750-7.50 ng/mL.
Measured by its binding ability in a functional ELISA. Biotinylated Recombinant Human EpCAM/TROP‑1 Avi-tag His-tag (Catalog # AVI9277) binds to Human EpCAM/TROP-1 Antibody (AF960) with a ED50 of 0.750-7.50 ng/mL.
2 μg/lane of Biotinylated Recombinant Human EpCAM/TROP‑1 Avi-tag His-tag Protein (Catalog # AVI9277) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® ...read more

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Summary
Reactivity HuSpecies Glossary
Applications Bioactivity
Format
Carrier-Free

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Recombinant Human EpCAM/TROP1 Avi-tag His-tag Protein, CF Summary

Additional Information
Biotinylated
Details of Functionality
Measured by its binding ability in a functional ELISA. Biotinylated Recombinant Human EpCAM/TROP‑1 Avi-tag His-tag (Catalog # AVI9277) binds to Human EpCAM/TROP-1 Antibody (Catalog # AF960) with a ED50 of 0.750-7.50 ng/mL.
Source
Chinese Hamster Ovary cell line, CHO-derived human EpCAM/TROP1 protein
Human EpCAM
(Gln24-Lys265)
Accession # P16422.2		Avi-tag6-His tag
N-terminusC-terminus
Accession #
N-terminal Sequence
Gln24
Structure / Form
Biotinylated via Avi-tag
Protein/Peptide Type
Recombinant Proteins
Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Note
<0.10 EU per 1 μg of the protein by the LAL method.

Applications/Dilutions

Dilutions
  • Bioactivity
Theoretical MW
31 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
SDS-PAGE
35-42 kDa, under reducing conditions.

Packaging, Storage & Formulations

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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Reconstitution Instructions
Reconstitute at 500 μg/mL in PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Recombinant Human EpCAM/TROP1 Avi-tag His-tag Protein, CF

  • 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

Background

Epithelial Cellular Adhesion Molecule (EpCAM), also known as KS1/4, gp40, GA733-2, 17-1A, and TROP‑1, is a 40 kDa transmembrane glycoprotein that consists of a 242 amino acid (aa) extracellular domain with two EGF‑like repeats, a 23 aa transmembrane segment, and a 26 aa cytoplasmic domain (1). Human and mouse EpCAM share 82% aa sequence identity. During embryonic development, EpCAM is detected in fetal lung, kidney, liver, pancreas, skin, and germ cells. In adults, human EpCAM is expressed on basolateral cell membranes of all simple, pseudo-stratified, and transitional epithelia but not on normal squamous stratified epithelia, mesenchymal tissue, muscular tissue, neuro-endocrine tissue, or lymphoid tissue (2). It is additionally expressed on undifferentiated embryonic stem cells, thymocytes, and dendritic cells (3-5). It is up-regulated on actively proliferating epithelial tissues, during adult liver regeneration, and on many epithelial cell-derived carcinomas (2, 6). EpCAM functions as a homophilic cell adhesion molecule (7). It associates into tetramers and forms complexes in cis with Claudin-7, CD44v6, TSPAN8, CD9, Integrin alpha 3, and Annexin A1 (8-11) that can interfere with cell adhesion (12, 13). Proteolytic cleavage of EpCAM releases multiple fragments from the ECD as well as a cytoplasmic fragment that can regulate gene transcription (14-16). Our Avi-tag Biotinylated Recombinant Human EpCAM features biotinylation at a single site contained within the Avi-tag, a unique 15 amino acid peptide. Protein orientation will be uniform when bound to streptavidin-coated surface due to the precise control of biotinylation and the rest of the protein is unchanged so there is no interference in the protein's bioactivity.
  1. Strnad, J. et al. (1989) Cancer Res. 49:314.
  2. Schnell, U. et al. (2013) Biochim. Biophys. Acta 1828:1989.
  3. Ng, V.Y. et al. (2010) Stem Cells 28:29.
  4. Nelson, A.J. et al. (1996) Eur. J. Immunol. 26:401.
  5. Borkowski, T.A. et al. (1996) Eur. J. Immunol. 26:110.
  6. de Boer, C.J. et al. (1999) J. Pathol. 188:201.
  7. Litvinov, S.V. et al. (1994) J. Cell Biol. 125:437.
  8. Balzar, M. et al. (2001) Mol. Cell. Biol. 21:2570.
  9. Nubel, T. et al. (2009) Mol. Cancer Res. 7:285.
  10. Kuhn, S. et al. (2007) Mol. Cancer Res. 5:553.
  11. Schmidt, D.S. et al. (2004) Exp. Cell Res. 297:329.
  12. Litvinov, S.V. et al. (1997) J. Cell Biol. 139:1337.
  13. Gaiser, M.R. et al. (2012) Proc. Natl. Acad. Sci. USA 109:E889.
  14. Schnell, U. et al. (2013) Biosci. Rep. 33:e00030.
  15. Schon, M.P. et al. (1993) Int. J. Cancer 55:988.
  16. Maetzel, D. et al. (2009) Nat. Cell Biol. 11:162.

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FAQs for EpCAM/TROP1 (AVI9277). (Showing 1 - 1 of 1 FAQ).

  1. I'm looking for EpCAM antibody for rat. Do you have any antibody which can use FACS?
    • We unfortunately do not have any EpCAM antibodies validated in FACS for detection of the rat protein. I am sorry for any inconvenience. I do have three products to EpCAM that can detect the rat protein. These products have been validated to detect the native rat protein, so they may work for FACS however they have not yet been tested in that particular application. If you would like to try them in your experiment you would qualify for our Innovator's Reward Program. This program was designed to help scientists with the cost of their antibodies in return for valuable information. If you decide to test an antibody in a previously untested species or application we will issue you a credit for the purchase price of the antibody in exchange for a review of your experiment using our product.

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