CD63 Recombinant Protein Antigen

Novus Biologicals, part of Bio-Techne | Catalog # NBP3-21363PEP

Novus Biologicals, part of Bio-Techne
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NBP3-21363PEP
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Key Product Details

Source

E. coli

Conjugate

Unconjugated

Applications

Antibody Competition

View all CD63 Proteins and Enzymes »

Product Specifications

Description

A recombinant protein antigen with a N-terminal His6-ABP tag corresponding to human CD63

Source: E.coli

Amino Acid Sequence: VGAQLVLSQTIIQGATPGSL

Fusion Tag: N-terminal His6ABP (ABP = Albumin Binding Protein derived from Streptococcal Protein G)

This product is intended to be used as a blocking antigen for antibody competition assays. Any other use of this antigen is done at the risk of the user. The use of this product for commercial production is strictly prohibited. Please contact technical support if you have any questions.

Purity

>80% by SDS-PAGE and Coomassie blue staining

Predicted Molecular Mass

20 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.

Applications

Antibody Competition (10-100 molar excess)

Application Notes

This recombinant antigen is only intended to be used as a blocking agent to confirm antibody specificity with the corresponding antibody, catalog number NBP3-21363. It is purified by IMAC chromatography, and the expected concentration is greater than 0.5 mg/ml.For current lot information, including availability, please contact our technical support team click nb-technical@bio-techne.com For further blocking peptide related information and a protocol, click here.

Protein / Peptide Type

Recombinant Protein Antigen

Formulation, Preparation and Storage

NBP3-21363PEP
Formulation PBS and 1M Urea, pH 7.4.
Preservative No Preservative
Concentration Please see the vial label for concentration. If unlisted please contact technical services.
Shipping The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage Store at -20C. Avoid freeze-thaw cycles.

Background: CD63

CD63 (cluster of differentiation 63), also known as lysosome associated membrane protein 3 (LAMP-3), is a membrane spanning glycoprotein with a molecular mass ranging from 30-60 kDa that was the first characterized member of the tetraspanin superfamily (1,2). CD63 is ubiquitously expressed and largely present on the cell surface in the endosomal system (1-3). More specifically, it is generally present in multivesicular bodies (MVBs), also called late endosomes, and lysosomes (1). The CD63 molecule is a total of 238 amino acids (aa), has four hydrophobic membrane-spanning regions and three N-glycosylation sites, and the encoded protein has a theoretical molecular weight of 25 kDa (2,3). CD63 both directly and indirectly interacts with other proteins including integrins, cell surface receptors, other tetraspanins, kinases, and adapter proteins, to name a few (1). CD63 is involved in many cell processes including cell survival and activation, cell adhesion, invasion, and migration (1). Additionally, CD63 has been shown to interact with tissue inhibitor of metalloproteinase 1 (TIMP-1), which originally thought to be an inhibitor of cancer progression has recently been shown to have cancer promoting properties as well (1,4). The CD63-TIMP-1 interaction has been shown to activate the PI3K/AKT pathway in lung adenocarcinoma cells and also promote survival and invasion of acute myeloid leukemia cells (1).CD63 is a useful flow cytometry marker for basophil granulocytes and can be used for the basophil activation test (BAT) to assess IgE-mediated allergy response (5). As CD63 was initially discovered on activated blood platelets and is a lysosomal-associated protein it makes sense it would be involved in platelet or lysosomal-related disorders (1,2). More precisely, CD63 is associated with Hermansky-Pudlak syndrome, a disease characterized by albinism and platelet storage pool deficiency (6).

References

1. Pols, M. S., & Klumperman, J. (2009). Trafficking and function of the tetraspanin CD63. Experimental cell research. https://doi.org/10.1016/j.yexcr.2008.09.020

2. Metzelaar, M. J., Wijngaard, P. L., Peters, P. J., Sixma, J. J., Nieuwenhuis, H. K., & Clevers, H. C. (1991). CD63 antigen. A novel lysosomal membrane glycoprotein, cloned by a screening procedure for intracellular antigens in eukaryotic cells. The Journal of biological chemistry.

3. Horejsi, V., & Vlcek, C. (1991). Novel structurally distinct family of leucocyte surface glycoproteins including CD9, CD37, CD53 and CD63. FEBS letters. https://doi.org/10.1016/0014-5793(91)80988-f

4. Eckfeld, C., HauBler, D., Schoeps, B., Hermann, C. D., & Kruger, A. (2019). Functional disparities within the TIMP family in cancer: hints from molecular divergence. Cancer metastasis reviews. https://doi.org/10.1007/s10555-019-09812-6

5. Hoffmann, H. J., Santos, A. F., Mayorga, C., Nopp, A., Eberlein, B., Ferrer, M., Rouzaire, P., Ebo, D. G., Sabato, V., Sanz, M. L., Pecaric-Petkovic, T., Patil, S. U., Hausmann, O. V., Shreffler, W. G., Korosec, P., & Knol, E. F. (2015). The clinical utility of basophil activation testing in diagnosis and monitoring of allergic disease. Allergy. https://doi.org/10.1111/all.12698

6. Dell'Angelica, E. C., Shotelersuk, V., Aguilar, R. C., Gahl, W. A., & Bonifacino, J. S. (1999). Altered trafficking of lysosomal proteins in Hermansky-Pudlak syndrome due to mutations in the beta 3A subunit of the AP-3 adaptor. Molecular cell. https://doi.org/10.1016/s1097-2765(00)80170-7

Alternate Names

CD63, Granulophysin, Lamp-3, ME491, OMA81H, Tspan30

Gene Symbol

CD63

Additional CD63 Products

Product Documents for CD63 Recombinant Protein Antigen

Product Datasheets

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Product Specific Notices for CD63 Recombinant Protein Antigen

This product is for research use only and is not approved for use in humans or in clinical diagnosis. This product is guaranteed for 1 year from date of receipt.

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