Revision 1
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, FC-L

REACTIVITY:

H

SENSITIVITY:

Endogenous

MW (kDa):

Source/Isotype:

Rabbit IgG

UniProt ID:

#P09758

Entrez-Gene Id:

4070

Product Information

Product Usage Information

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

TACSTD2/TROP2 (E8Y8S) Rabbit mAb (Alexa Fluor® 647 Conjugate) recognizes endogenous levels of total TACSTD2/TROP2 protein.

Species Reactivity:

Human

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Val90 of human TACSTD2/TROP2 protein.

Product Description

This Cell Signaling Technology antibody is conjugated to Alexa Fluor® 647 fluorescent dye 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 TACSTD2/TROP2 (E8Y8S) Rabbit mAb #47866.

Background

TROP2 is a transmembrane glycoprotein encoded by gene TACSTD2 (tumor associated calcium signal transducer 2). TROP2 was first discovered as a biomarker of invasive trophoblast cells and later reported in many types of cancer cells as well as in various organs during development, and adult stem cells during homeostasis (1,2). TROP2 has an extracellular domain with EGF thyroglobulin type-1 repeats, a transmembrane domain, and a short cytoplasmic tail with a HIKE domain containing a PIP2 binding site and PKC phosphorylation site (Ser303) (1-4). TROP2 functions by regulating multiple signaling pathways including interaction of extracellular domain with integrin beta1 to regulate FAK signaling, association of its transmembrane domain with Claudin-1 and Claudin-7 for tight junction formation, as well as regulation of intracellular calcium release by its PIP2 binding and activation of the ERK/MAPK pathway (1,2,5-8). All of these functions are important for its role in tumor proliferation, metastasis, and invasion (1,2). PKC can phosphorylate TROP2 at Ser303; the phosphorylation changes the cytoplasmic tail conformation and further promotes its signaling (9). TROP2 can be activated through intramembrane proteolysis first by TACE, followed by further cleavage by Presenilin 1 and Presenilin 2. The proteolysis process is required for its role in tumor cell proliferation (10,11).

  1. McDougall, A.R. et al. (2015) Dev Dyn 244, 99-109.
  2. Shvartsur, A. and Bonavida, B. (2015) Genes Cancer 6, 84-105.
  3. El Sewedy, T. et al. (1998) Int J Cancer 75, 324-30.
  4. Linnenbach, A.J. et al. (1993) Mol Cell Biol 13, 1507-15.
  5. Trerotola, M. et al. (2013) Cancer Res 73, 3155-67.
  6. Trerotola, M. et al. (2015) Oncotarget 6, 14318-28.
  7. Nakatsukasa, M. et al. (2010) Am J Pathol 177, 1344-55.
  8. Cubas, R. et al. (2010) Mol Cancer 9, 253.
  9. Pavšič, M. et al. (2015) Sci Rep 5, 10324.
  10. Stoyanova, T. et al. (2012) Genes Dev 26, 2271-85.
  11. Ju, X. et al. (2016) Cancer Res 76, 6723-34.

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) FC-L: Flow Cytometry (Live)

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

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