EGFR Antibody (528) [Biotin]

Novus Biologicals | Catalog # NBP2-52699B

Recombinant Monoclonal Antibody
Novus Biologicals
100% Guarantee

Key Product Details

Species Reactivity

Human

Applications

Immunohistochemistry, Immunohistochemistry-Paraffin, Western Blot, Neutralization, Flow Cytometry, Immunocytochemistry/ Immunofluorescence, Immunoprecipitation, Functional, CyTOF-ready

Label

Biotin

Antibody Source

Recombinant Monoclonal Mouse IgG2a Kappa Clone # 528
View all EGFR Primary Antibodies »

Product Specifications

Immunogen

Partially purified EGFR from A431 cells.

Reactivity Notes

Human

Specificity

Recognizes the extracellular domain of EGFR.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG2a Kappa

Applications for EGFR Antibody (528) [Biotin]

Application
Recommended Usage

CyTOF-ready

Optimal dilutions of this antibody should be experimentally determined.

Flow Cytometry

Optimal dilutions of this antibody should be experimentally determined.

Functional

Optimal dilutions of this antibody should be experimentally determined.

Immunocytochemistry/ Immunofluorescence

Optimal dilutions of this antibody should be experimentally determined.

Immunohistochemistry

Optimal dilutions of this antibody should be experimentally determined.

Immunohistochemistry-Paraffin

Optimal dilutions of this antibody should be experimentally determined.

Immunoprecipitation

Optimal dilutions of this antibody should be experimentally determined.

Western Blot

Optimal dilutions of this antibody should be experimentally determined.

Neutralization

Optimal dilutions of this antibody should be experimentally determined.
Application Notes
Optimal dilution of this antibody should be experimentally determined.

Flow Cytometry Panel Builder

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Advanced Features

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Flow Cytometry

Formulation, Preparation, and Storage

Purification

Protein A purified

Formulation

PBS

Preservative

0.05% Sodium Azide

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 4C in the dark.

Background: EGFR

Epidermal growth factor receptor (EGFR), also known as ErbB1 and HER1, is a type I glycoprotein that belongs the ErbB subfamily of receptor tyrosine kinases (RTKs), which includes ErbB2/HER2, ErbB3/HER3, and ErbB4/HER4 (1,2). EGFR plays an important role in epithelial cell development and homeostasis and as a driver of tumorigenesis in cancer (1,2). The human EGFR is protein 1210 amino acids (aa) in length with a theoretical molecular weight (MW) of 134 kDa (1). The protein consists of a short signal peptide, an extracellular domain (ECD) divided into four subdomains (I-IV), a transmembrane region, an intracellular juxtamembrane segment, a tyrosine kinase domain, and C-terminal tail (1-3). Within the ECD, human EGFR has 88-90% aa sequence identity with mouse and rat EGFR. EGFR has four known specific ligands: EGF, amphiregulin, epigen, and transforming growth factor alpha (TGF-alpha). EGFR ligands betacellulin, epiregulin, and herapin binding (HB)-EGF have dual specificity with ErbB4 (1,3). Ligand binding to the extracellular domain of EFGR leads to receptor homodimerization, or heterodimerization with other ErbB family members, and EGFR activation. This results in subsequent phosphorylation and activation of intracellular signaling pathways, such as MAPK and PI3K/Akt (2,3). EGFR signaling is essential for many cellular processes including proliferation, differentiation, migration, and apoptosis (1,3,5).

In addition to its role in normal development, EGFR mutations or overexpression is observed in many tumors, including breast cancer, non-small cell lung carcinoma (NSCLC), colon cancer, and more (3-6). Small molecule tyrosine kinase inhibitors (TKIs), like gefitinib, erlotinib, and afatinib, have shown great efficacy in treating patients with EGFR activating mutations, especially for NSCLC (4-6). However, most patients eventually develop acquired resistance to TKIs and thus combination and alternative therapies are in development (4-6). A third-generation TKI, osimertinib, is approved for NSCLC patients with resistance to first-line EGFR TKI treatment (6). Additionally, combination therapies of EGFR TKIs with monoclonal antibody immunotherapies, like anti-PD-L1, are being further investigated in clinical trials (6).

References

1. Roskoski R Jr. Small molecule inhibitors targeting the EGFR/ErbB family of protein-tyrosine kinases in human cancers. Pharmacol Res. 2019; 139:395-411. https://doi.org/10.1016/j.phrs.2018.11.014

2. Sigismund S, Avanzato D, Lanzetti L. Emerging functions of the EGFR in cancer. Mol Oncol. 2018; 12(1):3-20. https://doi.org/10.1002/1878-0261.12155

3. Normanno N, De Luca A, Bianco C, et al. Epidermal growth factor receptor (EGFR) signaling in cancer. Gene. 2006; 366(1):2-16. https://doi.org/10.1016/j.gene.2005.10.018

4. Liu Q, Yu S, Zhao W, Qin S, Chu Q, Wu K. EGFR-TKIs resistance via EGFR-independent signaling pathways. Mol Cancer. 2018; 17(1):53. https://doi.org/10.1186/s12943-018-0793-1

5. Harrison PT, Vyse S, Huang PH. Rare epidermal growth factor receptor (EGFR) mutations in non-small cell lung cancer. Semin Cancer Biol. 2020; 61:167-179. https://doi.org/10.1016/j.semcancer.2019.09.015

6. Wu SG, Shih JY. Management of acquired resistance to EGFR TKI-targeted therapy in advanced non-small cell lung cancer. Mol Cancer. 2018; 17(1):38. https://doi.org/10.1186/s12943-018-0777-1

Long Name

Epidermal Growth Factor Receptor

Alternate Names

EGF R, ErbB, ErbB1, HER-1

Gene Symbol

EGFR

Additional EGFR Products

Product Documents for EGFR Antibody (528) [Biotin]

Certificate of Analysis

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Product Specific Notices for EGFR Antibody (528) [Biotin]

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

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Protocols

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FAQs

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