Recombinant Rat EGFR mFc Chimera Protein, CF

R&D Systems | Catalog # 11522-ER

Analyzed by SEC-MALS
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Key Product Details

  • R&D Systems NS0-derived Recombinant Rat EGFR mFc Chimera Protein (11522-ER)
  • Quality control testing to verify active proteins with lot specific assays by in-house scientists
  • All R&D Systems proteins are covered with a 100% guarantee

Source

NS0

Accession Number

NP_113695.1

Structure / Form

Disulfide-linked homodimer

Applications

Bioactivity
View all EGFR Proteins and Enzymes »

Product Specifications

Source

Mouse myeloma cell line, NS0-derived rat EGFR protein
Rat EGFR
(Leu25-Ile647)
Accession # NP_113695.1		 IEGRMDP Mouse IgG2a
(Glu98-Lys330)
N-terminus C-terminus

Purity

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

Endotoxin Level

<0.10 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Leu25

Predicted Molecular Mass

97 kDa

SDS-PAGE

110-130 kDa, under reducing conditions.

Activity

Measured by its binding ability in a functional ELISA.
Recombinant Rat EGFR mFc Chimera binds to Recombinant Rat EGF Protein (Catalog # 3214-EG) with an ED50 of 0.250-2.50 μg/mL.

Scientific Data Images for Recombinant Rat EGFR mFc Chimera Protein, CF

Recombinant Rat EGFR mFc Chimera Protein SEC-MALS.

Recombinant Rat EGFR mFc Chimera Protein (Catalog # 11522-ER) has a molecular weight (MW) of 233.0 kDa as analyzed by SEC-MALS, suggesting that this protein is a homodimer. MW may differ from predicted MW due to post-translational modifications (PTMs) present (e.g. Glycosylation).

Recombinant Rat EGFR mFc Chimera Protein Binding Activity.

Measured by its binding ability in a functional ELISA. Recombinant Rat EGFR mFc Chimera Protein (Catalog # 11522-ER) binds to Recombinant Rat EGF Protein (3214-EG) with an ED50 of 0.250‑2.50 μg/mL.

Recombinant Rat EGFR mFc Chimera Protein SDS-PAGE.

2 μg/lane of Recombinant Rat EGFR mFc Chimera Protein (Catalog # 11522-ER) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 110 - 130 kDa and 220-260 kDa, respectively.

Formulation, Preparation, and Storage

11522-ER
Formulation Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
Reconstitution Reconstitute at 500 μg/mL in PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Calculators

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: EGFR

Epidermal growth factor receptor (EGFR) is a member of a subfamily of receptor tyrosine kinases comprised of four members: EGFR (also known as HER-1, ErbB1, or ErbB), ErbB2 (Neu, HER-2), ErbB3 (HER-3), and ErbB4 (HER-4). All family members are type I transmembrane glycoproteins with an extracellular domain (ECD) containing two cysteine-rich domains separated by a spacer region and a cytoplasmic domain containing a tyrosine kinase domain followed by multiple tyrosine autophosphorylation sites (1, 2). Several soluble isoforms lacking the intracellular domain are generated by alternate splicing (3, 4). The mature ECD of rat EGFR shares 89% and 95% amino acid sequence identity with human and mouse EGFR, respectively. EGFR binds a subset of the EGF family ligands, including EGF, amphiregulin, TGF-alpha, betacellulin, epiregulin, HB-EGF, and epigen (1, 2). Ligand binding induces EGFR homodimerization as well as heterodimerization with ErbB2, resulting in kinase activation, heterodimerization tyrosine phosphorylation and cell signaling (5‑7). EGFR can also be recruited to form heterodimers with the ligand‑activated ErbB3 or ErbB4. EGFR signaling regulates multiple biological functions including cell proliferation, differentiation, motility, and apoptosis (5-7). EGFR is overexpressed in a wide variety of tumors and is the target of several anti-cancer drugs (8).

References

  1. Singh, A.B. and R.C. Harris (2005) Cell. Signal. 17:1183.
  2. Shilo, B.Z. (2005) Development 132:4017.
  3. Guillaudeau, A. et al. (2012) PLoS One. 7:1.
  4. Reiter J.L. et al. (2001) Genomics 71:1.
  5. Freed, D.M. et al. (2017) Cell. 171:683.
  6. Burgess, A.W. et al. (2003) Mol. Cell 12:541.
  7. Faria, J.A. et al. (2016) BBRC. 478:39.
  8. Lee, C.K. et al. (2017) J. Thoracic Oncology. 12:403.

Long Name

Epidermal Growth Factor Receptor

Alternate Names

EGF R, ErbB, ErbB1, HER-1

Entrez Gene IDs

1956 (Human); 13649 (Mouse); 24329 (Rat); 102138724 (Cynomolgus Monkey)

Gene Symbol

EGFR

UniProt

NP_113695.1

Additional EGFR Products

Product Documents for Recombinant Rat EGFR mFc Chimera Protein, CF

Certificate of Analysis

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Product Specific Notices for Recombinant Rat EGFR mFc Chimera Protein, CF

For research use only

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