Revision 3
Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

FC-FP

REACTIVITY:

H

SENSITIVITY:

Endogenous

MW (kDa):

Source/Isotype:

Rabbit IgG

UniProt ID:

#Q13641

Entrez-Gene Id:

7162

Product Information

Product Usage Information

Application Dilution
Flow Cytometry (Fixed/Permeabilized) 1:50

Storage

Supplied in PBS (pH 7.2), less than 0.1% sodium azide, and 2 mg/mL BSA. Store at 4°C. Do not aliquot the antibody. Protect from light. Do not freeze.

Specificity / Sensitivity

TPBG/5T4 (E4T8Q) Rabbit mAb (Alexa Fluor® 488 Conjugate) recognizes endogenous levels of total TPBG/5T4 protein.

Species Reactivity:

Human

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding His140 of human TPBG/5T4 protein.

Product Description

This Cell Signaling Technology antibody is conjugated to Alexa Fluor® 488 fluorescent dye under optimal conditions and tested in-house for direct flow cytometric analysis in human cells. This antibody is expected to exhibit the same species cross-reactivity as the unconjugated TPBG/5T4 (E4T8Q) Rabbit mAb #30874.

Background

Trophoblast glycoprotein (TPBG/5T4) is a type I transmembrane glycoprotein that is normally expressed by trophoblast cells of the placenta with a very limited expression pattern in normal adult tissues (1,2). The extracellular domain of TPBG is extensively glycosylated and contains multiple leucine-rich repeats while its cytoplasmic domain consists of a PDZ domain-binding motif, which is important for linking TPBG to intracellular signaling networks involved in the regulation of cell motility and adhesion (3,4). Research studies have shown that cell surface expression of TPBG plays a critical role in modulating signaling cascades that drive cell adhesion, morphology, and motility processes that are fundamental for normal progression of embryogenesis (5-7).Research studies have demonstrated that TPBG is aberrantly overexpressed in numerous types of solid tumors (8) and functions to promote enhanced tumor cell motility and metastasis (9,10). In some tumors, such as NSCLC and HNSCC, TPBG has been identified as a novel marker of tumor-initiating cells (11,12). The observed differential expression of TPBG by normal tissue versus tumor tissue has been exploited by multiple immunotherapeutic agents that are currently being evaluated for targeting of multiple types of solid tumors (13).

  1. Hole, N. and Stern, P.L. (1990) Int J Cancer 45, 179-84.
  2. Woods, A.M. et al. (2002) Biochem J 366, 353-65.
  3. Shaw, D.M. et al. (2002) Biochem J 363, 137-45.
  4. Awan, A. et al. (2002) Biochem Biophys Res Commun 290, 1030-6.
  5. Barrow, K.M. et al. (2005) Dev Dyn 233, 1535-45.
  6. Ward, C.M. et al. (2003) J Cell Sci 116, 4533-42.
  7. Ward, C.M. et al. (2006) Exp Cell Res 312, 1713-26.
  8. Southall, P.J. et al. (1990) Br J Cancer 61, 89-95.
  9. Carsberg, C.J. et al. (1996) Int J Cancer 68, 84-92.
  10. Myers, K.A. et al. (1994) J Biol Chem 269, 9319-24.
  11. Damelin, M. et al. (2011) Cancer Res 71, 4236-46.
  12. Kerk, S.A. et al. (2017) Clin Cancer Res 23, 2516-2527.
  13. Stern, P.L. and Harrop, R. (2017) Cancer Immunol Immunother 66, 415-426.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Applications Key

FC-FP: Flow Cytometry (Fixed/Permeabilized)

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
XP is a registered trademark of Cell Signaling Technology, Inc.
This product is provided under an intellectual property license from Life Technologies Corporation. The transfer of this product is conditioned on the buyer using the purchased product solely in research conducted by the buyer, excluding contract research or any fee for service research, and the buyer must not (1) use this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; or (c) manufacturing or quality assurance or quality control, and/or (2) sell or transfer this product or its components for resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5791 Van Allen Way, Carlsbad, CA 92008 USA or [email protected].
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

Limited Uses

Except as otherwise expressly agreed in a writing signed by a legally authorized representative of CST, the following terms apply to Products provided by CST, its affiliates or its distributors. Any Customer's terms and conditions that are in addition to, or different from, those contained herein, unless separately accepted in writing by a legally authorized representative of CST, are rejected and are of no force or effect.

Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

Revision 3
#57335

TPBG/5T4 (E4T8Q) Rabbit mAb (Alexa Fluor® 488 Conjugate)

Flow Cytometry Image 1: TPBG/5T4 (E4T8Q) Rabbit mAb (Alexa Fluor® 488 Conjugate) Expand Image
Flow cytometric analysis of Raji cells (negative, blue) and MCF7 cells (positive, green) using TPBG/5T4 (E4T8Q) Rabbit mAb (Alexa Fluor® 488 Conjugate) (solid lines) or concentration-matched Rabbit (DA1E) mAb IgG XP® Isotype Control (Alexa Fluor® 488 Conjugate) #2975 (dashed lines).