EGFR Antibody (CL0815) - Azide and BSA Free

Novus Biologicals | Catalog # NBP3-43911

Novus Biologicals
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Key Product Details

Species Reactivity

Human

Applications

Immunohistochemistry-Paraffin, Western Blot

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG1 Clone # CL0815

Format

Azide and BSA Free
View all EGFR Primary Antibodies »

Product Specifications

Immunogen

This antibody was generated using a recombinant protein sequence of P00533, with the exact immunogen sequence remaining proprietary.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Scientific Data Images for EGFR Antibody (CL0815) - Azide and BSA Free

EGFR Antibody (CL0815) - Azide and BSA Free Western Blot: EGFR Antibody [NBP3-43911]

Western Blot: EGFR Antibody [NBP3-43911]

Lane 1: Marker [kDa]
Lane 2: Human cell line A-431
EGFR Antibody (CL0815) - Azide and BSA Free Immunohistochemistry-Paraffin: EGFR Antibody [NBP3-43911]

Immunohistochemistry-Paraffin: EGFR Antibody [NBP3-43911]

Staining of human placenta shows strong membranous positivity in trophoblast.
EGFR Antibody (CL0815) - Azide and BSA Free Immunohistochemistry-Paraffin: EGFR Antibody [NBP3-43911]

Immunohistochemistry-Paraffin: EGFR Antibody [NBP3-43911]

Staining of human ventricular cancer shows moderate membranous immunoreactivity in tumor cells.
EGFR Antibody (CL0815) - Azide and BSA Free Immunohistochemistry-Paraffin: EGFR Antibody [NBP3-43911]

Immunohistochemistry-Paraffin: EGFR Antibody [NBP3-43911]

Staining of human tonsil shows moderate membranous immunoreactivity in squamous epithelial cells.

Applications for EGFR Antibody (CL0815) - Azide and BSA Free

Application
Recommended Usage

Immunohistochemistry-Paraffin

1:200 - 1:500

Western Blot

1 ug/ml
Application Notes
For IHC-Paraffin, HIER pH 6 retrieval is recommended.

Formulation, Preparation, and Storage

Purification

Protein A purified

Reconstitution

Centrifuge the vial of lyophilized antibody at 12,000 x g for 20 seconds. Reconstitute by adding sterile, distilled water to achieve a final antibody concentration of 1mg/ml.

Formulation

Lyophilized from a 0.2 um filtered solution in PBS with Trehalose

Format

Azide and BSA Free

Preservative

No Preservative

Concentration

LYOPH mg/ml

Shipping

The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

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), 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 (CL0815) - Azide and BSA Free

Certificate of Analysis

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Product Specific Notices for EGFR Antibody (CL0815) - Azide and BSA Free

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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