Recombinant Human ErbB2/Her2 Fc His Alexa Fluor® 647 Protein
R&D Systems, part of Bio-Techne | Catalog # AFR1129
Key Product Details
Learn more about FluorokinesTM Fluorescent-Labeled Proteins
Source
NS0
Accession #
Structure / Form
Disulfide-linked homodimer
Labeled with Alexa Fluor® 467
Excitation Wavelength: 650 nm
Emission Wavelength: 668 nm
Labeled with Alexa Fluor® 467
Excitation Wavelength: 650 nm
Emission Wavelength: 668 nm
Conjugate
Alexa Fluor 647 (Excitation= 650 nm, Emission= 668 nm)
Applications
Bioactivity
Product Specifications
Source
Mouse myeloma cell line, NS0-derived human ErbB2/Her2 protein
| Human Erb B2 (Thr23-Thr652) Accession # NP_004439.2 |
IEGRMD | Human IgG1 (Pro100-Lys330) |
6-His tag |
| N-terminus | C-terminus | ||
Purity
>90%, 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
Thr23
Predicted Molecular Mass
97 kDa (monomer)
SDS-PAGE
115-130 kDa, under reducing conditions.
Activity
Measured by flow cytometry for its ability to bind anti-Human ErbB2/Her2 Monoclonal Antibody conjugated beads.The concentration of Recombinant Human ErbB2/Her2 Fc Chimera Alexa Fluor® 647 (Catalog # AFR1129) that produces 50% of the binding response is 0.50‑10.0 ng/mL
Scientific Data Images for Recombinant Human ErbB2/Her2 Fc His Alexa Fluor® 647 Protein
Flow cytometry analysis for Recombinant Human ErbB2/Her2 Fc Chimera His-tag Alexa Fluor® 647 staining on anti-human ErbB2/Her2 Monoclonal Antibody conjugated beads.
Streptavidin coated beads conjugated to biotinylated anti-human ErbB2/Her2 Monoclonal Antibody were stained with the indicated concentrations of Recombinant Human ErbB2/Her2 Fc Chimera His-tag Alexa Fluor® 647 (Catalog # AFR1129).
Recombinant Human ErbB2/Her2 Fc His Alexa Fluor® 647 Protein SDS-PAGE.
2 μg/lane of Recombinant Human ErbB2/Her2 Fc His Alexa Fluor® 647 Protein (Catalog # AFR1129) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 115-130 kDa and 230-260 kDa, respectively.Formulation, Preparation and Storage
AFR1129
| 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.
|
Background: ErbB2/Her2
ErbB2, also called Neu and Her2 (human epidermal growth factor receptor 2), is a type I membrane glycoprotein that is a member of the ErbB family of tyrosine kinase receptors. ErbB family members serve as receptors for the epidermal growth factor (EGF) family of growth factors. ErbB2 is widely expressed in epithelial cells and has also been found to be over-expressed in a large number of breast carcinomas. Among ErbB family members, ErbB2 is unique in that it has no identified ligands. Rather, ErbB2 heterodimerizes with the other members of the ErbB family (ErbB1 (EGFR), ErbB3, ErbB4) to form higher affinity signaling complexes. Because ErbB3 contains a defective kinase domain, the kinase domain of ErbB2 is responsible for initiating the tyrosine phosphorylation signal through the heterodimeric receptor. It has been found that a discrete three amino acid signal in the ErbB3 cytoplasmic domain is critical for transactivation of ErbB2. Interestingly, this same three amino acid signal has also been found in ErbB1 and ErbB4. Phosphoinositide 3-kinase has been shown to play a role in ErbB2 signal transduction. The cytoplasmic domain of ErbB2 has been shown to associate with beta-catenin and plakoglobin. Human ErbB2 consists of 1255 amino acids (aa) with a 21 aa signal sequence, a 631 aa extracellular domain, a 23 aa transmembrane region, and a 580 aa cytoplasmic domain. ErbB2 can be shed from the cell surface by proteolytic cleavage by an unidentified protease. ErbB2 appears to play roles in development, cancer, communication at the neuromuscular junction and regulation of cell growth and differentiation (1-10).
References
- Coussens, L. et. al. (1985) Science 230:1132.
- Yamamoto, T. et. al. (1986) Nature 319:230.
- Kanai, Y. et. al. (1995) Biochem. Biophys. Res. Commun. 208:1067.
- Codony-Servat, J. et. al. (1999) Cancer Res. 59:1196.
- Carraway, K.L. 3rd et. al. (1994) J. Biol. Chem. 269:14303.
- Emkey, R. and C.R. Kahn (1997) J. Biol. Chem. 272:31172.
- Schaefer, G. et. al. (1999) J. Biol. Chem. 274:859.
- Schlessinger, J. (2000) Cell 103:211.
- Hellyer, N.J. et. al. (2001) J. Biol. Chem. 276:42153.
- Daly, R.J. (1999) Growth Factors 16:255.
Long Name
Receptor Tyrosine Protein Kinase ErbB2
Alternate Names
CD340, HER2, Neu Oncogene, NGL, TKR1
Gene Symbol
ERBB2
UniProt
Additional ErbB2/Her2 Products
Product Documents for Recombinant Human ErbB2/Her2 Fc His Alexa Fluor® 647 Protein
Product Specific Notices for Recombinant Human ErbB2/Her2 Fc His Alexa Fluor® 647 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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