Recombinant Human Mesothelin His Alexa Fluor® 488 Protein

R&D Systems, part of Bio-Techne | Catalog # AFG3265

C-Terminal (aa 296-580)
R&D Systems, part of Bio-Techne
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AFG3265-020
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Key Product Details

Learn more about FluorokinesTM Fluorescent-Labeled Proteins

Source

NS0

Accession #

AAH09272.1

Structure / Form


Labeled with Alexa Fluor® 488 via amines
Excitation Wavelength: 488 nm  
Emission Wavelength: 515­-545 nm

Conjugate

Alexa Fluor 488 (Excitation= 488 nm, Emission= 515-545 nm)

Applications

Bioactivity

View all Mesothelin Proteins and Enzymes »

Product Specifications

Source

Mouse myeloma cell line, NS0-derived human Mesothelin protein
Glu296-Gly580, with a C-terminal 6-His tag

Purity

>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.

Endotoxin Level

<1.0 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Glu296

Predicted Molecular Mass

33 kDa

SDS-PAGE

40-45 kDa, reducing conditions.

Activity

Measured by flow cytometry for its ability to bind anti-human Mesothelin Monoclonal Antibody conjugated beads.The concentration of Recombinant Human Mesothelin C-Terminal (aa 296‑580) His‑tag Alexa Fluor® 488 (Catalog # AFG3265) that produces 50% of the binding response is 25.0-250 ng/mL.

Scientific Data Images for Recombinant Human Mesothelin His Alexa Fluor® 488 Protein

Flow cytometry analysis for Recombinant Human Mesothelin C-Terminal (aa 296‑580) His‑tag Alexa Fluor® 488 staining on anti-human Mesothelin Monoclonal Antibody conjugated beads.

Streptavidin coated beads conjugated to biotinylated anti-human Mesothelin Monoclonal Antibody were stained with the indicated concentrations of Recombinant Human Mesothelin C-Terminal (aa 296‑580) His‑tag Alexa Fluor® 488 (Catalog # AFG3265).

Recombinant Human Mesothelin C-Terminal (aa 296‑580) His‑tag Alexa Fluor® 488 Protein SDS-PAGE.

2 μg/lane of Recombinant Human Mesothelin C-Terminal (aa 296‑580) His‑tag Alexa Fluor® 488 Protein (Catalog # AFG3265) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 40-45 kDa.

Formulation, Preparation and Storage

AFG3265
Formulation Supplied as a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Shipping The product is shipped with dry ice or equivalent. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage Protect from light. Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 6 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after opening.
  • 3 months, -20 to -70 °C under sterile conditions after opening.

Background: Mesothelin

Mesothelin, also known as CAK1 and ERC, is derived from a 70 kDa precursor that also includes Megakaryocyte Potentiating Factor (MPF) (1-3). The 70 kDa precursor is expressed on the cell surface where it is cleaved at a dibasic proteolytic site to release the 32 kDa glycosylated MPF (3, 4). MPF is a cytokine that potentiates IL-3 induced megakaryocyte colony formation (2, 5). The term Mesothelin refers to the 40 kDa glycosylated protein which remains attached to the cell surface via a GPI linkage. Alternate splicing generates additional Mesothelin isoforms that have either an eight amino acid insertion following Ser408 or a substituted C‑terminal region with no GPI anchor (6). This recombinant human Mesothelin lacks the 8 aa insertion, and within aa 296-580 it shares 59% sequence identity with mouse and rat Mesothelin. Mesothelin is normally expressed on mesothelial cells in the pleura, pericardium, and peritoneum as well as in the developing and postnatal pancreas (1, 7). It is up‑regulated in mesotheliomas and a range of carcinomas and adenomas (8 ‑ 11). Mesothelin promotes tumor cell proliferation, migration, anchorage-independent growth, and tumor progression (10, 12). It is coexpressed with the tumor antigen CA125/MUC16 on advanced ovarian adenocarcinomas and interacts with this molecule to support cell adhesion (13). A soluble form of Mesothelin is released from tumor cells into the serum or tissue effusions (11, 14, 15).

References

  1. Hassan, R. et al. (2004) Clin. Cancer Res. 10:3937.
  2. Kojima, T. et al. (1995) J. Biol. Chem. 270:21984.
  3. Chang, K. and I. Pastan (1996) Proc. Natl. Acad. Sci. 93:136.
  4. Onda, M. et al. (2006) Clin. Cancer Res. 12:4225.
  5. Yamaguchi, N. et al. (1994) J. Biol. Chem. 269:805.
  6. Muminova, Z.E. et al. (2004) BMC Cancer 4:19.
  7. Hou, L.-Q. et al. (2008) Develop. Growth Differ. 50:531.
  8. Ordonez, N.G. (2003) Mod. Pathol. 16:192.
  9. Argani, P. et al. (2001) Clin. Cancer Res. 7:3862.
  10. Li, M. et al. (2008) Mol. Cancer Ther. 7:286.
  11. Scholler, N. et al. (1999) Proc. Natl. Acad. Sci. 96:11531.
  12. Uehara, N. et al. (2008) Mol. Cancer Res. 6:186.
  13. Rump, A. et al. (2004) J. Biol. Chem. 279:9190.
  14. Ho, M. and M.O. Lively (2006) Cancer Epidemiol. Biomarkers Prev. 15:1751.
  15. Robinson, B.W.S. et al. (2003) Lancet 362:1612.

Alternate Names

CAK1, MPF, MSLN, SMR

Entrez Gene IDs

10232 (Human); 56047 (Mouse); 60333 (Rat); 102130460 (Cynomolgus Monkey)

Gene Symbol

MSLN

UniProt

AAH09272.1

Additional Mesothelin Products

Product Documents for Recombinant Human Mesothelin His Alexa Fluor® 488 Protein

Product Datasheets

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

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Product Specific Notices for Recombinant Human Mesothelin His Alexa Fluor® 488 Protein

This product is provided under an agreement between Life Technologies Corporation and R&D Systems, Inc, and the manufacture, use, sale or import of this product is subject to one or more US patents and corresponding non-US equivalents, owned by Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) to resell, sell, or otherwise transfer this product or its components to any third party, or for any other commercial purpose. Life Technologies Corporation will not assert a claim against the buyer of the infringement of the above patents based on the manufacture, use or sale of a commercial product developed in research by the buyer in which this product or its components was employed, provided that neither this product nor any of its components was used in the manufacture of such product. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, Cell Analysis Business Unit, Business Development, 29851 Willow Creek Road, Eugene, OR 97402, Tel: (541) 465-8300. Fax: (541) 335-0354.
This product is provided under an agreement between Life Technologies Corporation and R&D Systems, Inc, and the manufacture, use, sale or import of this product is subject to one or more US patents and corresponding non-US equivalents, owned by Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) to resell, sell, or otherwise transfer this product or its components to any third party, or for any other commercial purpose. Life Technologies Corporation will not assert a claim against the buyer of the infringement of the above patents based on the manufacture, use or sale of a commercial product developed in research by the buyer in which this product or its components was employed, provided that neither this product nor any of its components was used in the manufacture of such product. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, Cell Analysis Business Unit, Business Development, 29851 Willow Creek Road, Eugene, OR 97402, Tel: (541) 465-8300. Fax: (541) 335-0354.

For research use only

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