The epidermal growth factor receptor (EGFR) subfamily of receptor tyrosine kinases comprises four members: EGFR (also known as HER1, ErbB1 or ErbB), ErbB2 (Neu, HER2), ErbB3 (HER3), and ErbB4 (HER4). All family members are type I transmembrane glycoproteins that have an extracellular domain which contains two cysteine-rich domains separated by a spacer region that is involved in ligand binding, and a cytoplasmic domain which has a membrane-proximal tyrosine kinase domain and a C-terminal tail with multiple tyrosine autophosphorylation sites. The human EGFR gene encodes a 1210 amino acid (aa) residue precursor with a 24 aa putative signal peptide, a 621 aa extracellular domain, a 23 aa transmembrane domain, and a 542 aa cytoplasmic domain. EGFR has been shown to bind a subset of the EGF family ligands, including EGF, amphiregulin, TGF-alpha, betacellulin, epiregulin, heparin-binding EGF and neuregulin-2 alpha in the absence of a co-receptor. Ligand binding induces EGFR homodimerization as well as heterodimerization with ErbB2, resulting in kinase activation, tyrosine phosphorylation and cell signaling. EGFR can also be recruited to form heterodimers with the ligand-activated ErbB3 or ErbB4. EGFR signaling has been shown to regulate multiple biological functions including cell proliferation, differentiation, motility and apoptosis. In addition, EGFR signaling has also been shown to play a role in carcinogenesis (1 - 3).
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Label
Antibody Source
Product Specifications
Immunogen
Leu25-Ser645
Accession # CAA25240
Specificity
Clonality
Host
Isotype
Scientific Data Images for Human EGFR Antibody
Detection of Human EGFR by Western Blot.
Western blot shows lysates of HeLa human cervical epithelial carcinoma cell line and MDA-MB-231 human breast cancer cell line. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human EGFR Antigen Affinity-purified Polyclonal Antibody (Catalog # AF231) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for EGFR at approximately 175 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Detection of EGFR in A431 Human Cell Line by Flow Cytometry.
A431 human epithelial carcinoma cell line was stained with Goat Anti-Human EGFR Antigen Affinity-purified Polyclonal Antibody (Catalog # AF231, filled histogram) or isotype control antibody (Catalog # AB-108-C, open histogram), followed by Phycoerythrin-conjugated Anti-Goat IgG Secondary Antibody (Catalog # F0107). View our protocol for Staining Membrane-associated Proteins.
EGFR in A431 Human Cell Line.
EGFR was detected in immersion fixed A431 human epithelial carcinoma cell line using Goat Anti-Human EGFR Antigen Affinity-purified Polyclonal Antibody (Catalog # AF231) at 1 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Goat IgG Secondary Antibody (red; Catalog # NL001) and counterstained with DAPI (blue). Specific staining was localized to plasma membrane. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
EGFR in Human Skin.
EGFR was detected in immersion fixed frozen sections of human skin using Goat Anti-Human EGFR Antigen Affinity-purified Polyclonal Antibody (Catalog # AF231) at 1 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Goat IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC004). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to plasma membrane. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.
Detection of Mouse EGFR by Western Blot
Crizotinib combined with mutant-selective EGFR-TKI overcomes multiple resistances to EGFR-TKI invivo.(A) SCID mice-bearing H1975/Vec- or H1975/HGF- tumors were administered WZ4002 (25 mg/kg) and/or crizotinib (10, 25mg/kg) once daily for 6 to 20 days. Tumor volume was measured using calipers on the indicated days. Mean ± SE tumor volumes are shown for groups of 5 mice. *, P < 0.05 versus control; ✝, P < 0.05 versus WZ4002 by one-way ANOVA. (B) H1975/Vec- or H1975/HGF- tumors were resected from the mice 3 hours after administration of WZ4002 (25mg/kg) and/or crizotinib (10, 25 mg/kg), and the relative levels of proteins in the tumor lysates were determined by western blot analysis. (C) Representative images of H1975/Vec- and H1975/HGF- tumors immunohistochemically stained with antibodies to human Ki-67, and stained with both DAPI (nuclear stain) and TUNEL (FITC). Bar, 200 μm. (D) Quantification of proliferative cells, as determined by the Ki-67-positive proliferation index (percentage of Ki-67-positive cells). Quantification of apoptotic cells, as determined by the TUNEL assay as described in Materials and Methods. Columns, mean of five areas; bars, SD *, P < 0.05 versus of H1975/Vec-tumors; ✝, P < 0.05 versus H1975/HGF-tumors by one-way ANOVA. Image collected and cropped by CiteAb from the following publication (https://dx.plos.org/10.1371/journal.pone.0084700), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of Human EGFR by Simple WesternTM.
Simple Western lane view shows lysates of A431 human epithelial carcinoma cell line, loaded at 4.2 mg/mL. A specific band was detected for EGFR at approximately 229 kDa (as indicated) using 12.5 µg/mL of Goat Anti-Human EGFR Antigen Affinity-purified Polyclonal Antibody (Catalog # AF231). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.Detection of Human EGFR by Western Blot
Crizotinib reduces Met phosphorylation and combined treatment with a new generation EGFR-TKI inhibits downstream pathways even in the presence of HGF.H1975 and H1975/HGF cells were incubated with crizotinib (300 nmol/L) and/or afatinib (300 nmol/L) (A, B) or WZ4002 (300 nmol/L) (C, D), for 1 hour. After stimulation with HGF (10 ng/mL) for 10 minutes, the cell lysates were harvested and the phosphorylation of indicated proteins was determined by western blot analysis. Each sample was assayed in triplicate, with each experiment repeated at least 3 times independently. Image collected and cropped by CiteAb from the following publication (https://dx.plos.org/10.1371/journal.pone.0084700), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of Human EGFR by Western Blot
Crizotinib reduces Met phosphorylation and combined treatment with a new generation EGFR-TKI inhibits downstream pathways even in the presence of HGF.H1975 and H1975/HGF cells were incubated with crizotinib (300 nmol/L) and/or afatinib (300 nmol/L) (A, B) or WZ4002 (300 nmol/L) (C, D), for 1 hour. After stimulation with HGF (10 ng/mL) for 10 minutes, the cell lysates were harvested and the phosphorylation of indicated proteins was determined by western blot analysis. Each sample was assayed in triplicate, with each experiment repeated at least 3 times independently. Image collected and cropped by CiteAb from the following publication (https://dx.plos.org/10.1371/journal.pone.0084700), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of Human EGFR by Western Blot
Crizotinib reduces Met phosphorylation and combined treatment with a new generation EGFR-TKI inhibits downstream pathways even in the presence of HGF.H1975 and H1975/HGF cells were incubated with crizotinib (300 nmol/L) and/or afatinib (300 nmol/L) (A, B) or WZ4002 (300 nmol/L) (C, D), for 1 hour. After stimulation with HGF (10 ng/mL) for 10 minutes, the cell lysates were harvested and the phosphorylation of indicated proteins was determined by western blot analysis. Each sample was assayed in triplicate, with each experiment repeated at least 3 times independently. Image collected and cropped by CiteAb from the following publication (https://dx.plos.org/10.1371/journal.pone.0084700), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of Human EGFR by Western Blot
Crizotinib reduces Met phosphorylation and combined treatment with a new generation EGFR-TKI inhibits downstream pathways even in the presence of HGF.H1975 and H1975/HGF cells were incubated with crizotinib (300 nmol/L) and/or afatinib (300 nmol/L) (A, B) or WZ4002 (300 nmol/L) (C, D), for 1 hour. After stimulation with HGF (10 ng/mL) for 10 minutes, the cell lysates were harvested and the phosphorylation of indicated proteins was determined by western blot analysis. Each sample was assayed in triplicate, with each experiment repeated at least 3 times independently. Image collected and cropped by CiteAb from the following publication (https://dx.plos.org/10.1371/journal.pone.0084700), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of Mouse EGFR by Western Blot
Crizotinib combined with irreversible EGFR-TKI overcomes multiple resistances to EGFR-TKI in vivo.(A) SCID mice-bearing H1975/Vec- or H1975/HGF- tumors were administered afatinib (25 mg/kg) and/or crizotinib (10mg/kg) once daily for 6 to 20 days. Tumor volume was measured using calipers on the indicated days. Mean ± SE tumor volumes are shown for groups of 5 mice. *, P < 0.05 versus control; ✝, P < 0.05 versus afatinib (25 mg/kg) by one-way ANOVA. (B) H1975/Vec- or H1975/HGF- tumors were resected from the mice 3 hours after administration of afatinib (25mg/kg) and/or crizotinib (10 mg/kg), and the relative levels of proteins in the tumor lysates were determined by western blot analysis. (C) Representative images of H1975/Vec- and H1975/HGF tumors immunohistochemically stained with antibodies to human Ki-67, and stained with both DAPI (nuclear stain) and TUNEL (FITC). Bar, 200 μm. (D) Quantification of proliferative cells, as determined by their Ki-67-positive proliferation index (percentage of Ki-67-positive cells). Quantification of apoptotic cells, as determined by the TUNEL assay as described in Materials and Methods. Columns, mean of five areas; bars, SD. *, P < 0.05 versus H1975/Vec-tumors; ✝, P < 0.05 versus control of H1975/HGF-tumors by one-way ANOVA. Image collected and cropped by CiteAb from the following publication (https://dx.plos.org/10.1371/journal.pone.0084700), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of EGFR in Human Skin.
Formalin-fixed paraffin-embedded tissue sections of human skin were probed for EGFR mRNA (ACD RNAScope Probe, catalog # 310061; Fast Red chromogen, ACD catalog # 322360). Adjacent tissue section was processed for immunohistochemistry using goat anti-human EGFR polyclonal antibody (R&D Systems catalog # AF231) at 3ug/mL with overnight incubation at 4 degrees Celsius followed by incubation with anti-goat IgG VisUCyte HRP Polymer Antibody (Catalog # VC004) and DAB chromogen (yellow-brown). Tissue was counterstained with hematoxylin (blue). Specific staining was localized to keratinocytes.
Detection of Human Human EGFR Antibody by Western Blot
Crizotinib reduces Met phosphorylation and combined treatment with a new generation EGFR-TKI inhibits downstream pathways even in the presence of HGF.H1975 and H1975/HGF cells were incubated with crizotinib (300 nmol/L) and/or afatinib (300 nmol/L) (A, B) or WZ4002 (300 nmol/L) (C, D), for 1 hour. After stimulation with HGF (10 ng/mL) for 10 minutes, the cell lysates were harvested and the phosphorylation of indicated proteins was determined by western blot analysis. Each sample was assayed in triplicate, with each experiment repeated at least 3 times independently. Image collected and cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/24386407), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of Mouse Human EGFR Antibody by Western Blot
Crizotinib combined with mutant-selective EGFR-TKI overcomes multiple resistances to EGFR-TKI invivo.(A) SCID mice-bearing H1975/Vec- or H1975/HGF- tumors were administered WZ4002 (25 mg/kg) and/or crizotinib (10, 25mg/kg) once daily for 6 to 20 days. Tumor volume was measured using calipers on the indicated days. Mean ± SE tumor volumes are shown for groups of 5 mice. *, P < 0.05 versus control; ✝, P < 0.05 versus WZ4002 by one-way ANOVA. (B) H1975/Vec- or H1975/HGF- tumors were resected from the mice 3 hours after administration of WZ4002 (25mg/kg) and/or crizotinib (10, 25 mg/kg), and the relative levels of proteins in the tumor lysates were determined by western blot analysis. (C) Representative images of H1975/Vec- and H1975/HGF- tumors immunohistochemically stained with antibodies to human Ki-67, and stained with both DAPI (nuclear stain) and TUNEL (FITC). Bar, 200 μm. (D) Quantification of proliferative cells, as determined by the Ki-67-positive proliferation index (percentage of Ki-67-positive cells). Quantification of apoptotic cells, as determined by the TUNEL assay as described in Materials and Methods. Columns, mean of five areas; bars, SD *, P < 0.05 versus of H1975/Vec-tumors; ✝, P < 0.05 versus H1975/HGF-tumors by one-way ANOVA. Image collected and cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/24386407), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of Human Human EGFR Antibody by Western Blot
Crizotinib reduces Met phosphorylation and combined treatment with a new generation EGFR-TKI inhibits downstream pathways even in the presence of HGF.H1975 and H1975/HGF cells were incubated with crizotinib (300 nmol/L) and/or afatinib (300 nmol/L) (A, B) or WZ4002 (300 nmol/L) (C, D), for 1 hour. After stimulation with HGF (10 ng/mL) for 10 minutes, the cell lysates were harvested and the phosphorylation of indicated proteins was determined by western blot analysis. Each sample was assayed in triplicate, with each experiment repeated at least 3 times independently. Image collected and cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/24386407), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of EGFR by Western Blot
The EGFR expression upon cell stimulation with EGF.(A) Representative Western blot images showing expression of phosphorylated- and total-EGFR (Phospho-EGFR and Total-EGFR), upon EGF stimulation at different time points. GAPDH served as an internal control for protein loading. The average expression values of the indicated protein were determined via densitometry (Fiji software) from three independent experiments and presented as a fold change over the negative controls. Increased expression is marked in green and decreased in red. Full Western blot images including the corresponding controls for each time point and weight marker are shown in Supplementary Figure S2. (B) Localization of EGFR upon cell stimulation with EGF assessed via confocal microscopy. Receptor internalization was observed 5 min after A549 stimulation with EGF, followed by receptor recycling back to the membrane staring at 15 min. Magenta: EGFR;Cyan: nuclei. Scale bar: 10 μm. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/37954478), licensed under a CC-BY license. Not internally tested by R&D Systems.Applications for Human EGFR Antibody
CyTOF-ready
Dual RNAscope ISH-IHC Compatible
Sample: Immersion fixed paraffin-embedded sections of human skin
Flow Cytometry
Sample: A431 human epithelial carcinoma cell line
Immunocytochemistry
Sample: Immersion fixed A431 human epithelial carcinoma cell line
Immunohistochemistry
Sample: Immersion fixed frozen sections of human skin
Immunoprecipitation
Sample: A431 human epithelial carcinoma cell line, see our available Western blot detection antibodies
Simple Western
Sample: A431 human epithelial carcinoma cell line
Western Blot
Sample: HeLa human cervical epithelial carcinoma cell line and MDA‑MB‑231 human breast cancer cell line
Human EGFR Sandwich Immunoassay
Reviewed Applications
Read 1 review rated 5 using AF231 in the following applications:
Flow Cytometry Panel Builder
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Advanced Features
- Spectra Viewer - Custom analysis of spectra from multiple fluorochromes
- Spillover Popups - Visualize the spectra of individual fluorochromes
- Antigen Density Selector - Match fluorochrome brightness with antigen density
Formulation, Preparation, and Storage
Purification
Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.
Formulation
*Small pack size (-SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Shipping
Stability & Storage
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Calculators
Background: EGFR
References
- Daly, R.J. (1999) Growth Factors, 16:255.
- Schlessinger, J. (2000) Cell. 103:211.
- Maihle, N.J. et al. (2002) Cancer Treat. Res. 107:247.
Long Name
Alternate Names
Gene Symbol
UniProt
Additional EGFR Products
Product Documents for Human EGFR Antibody
Certificate of Analysis
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Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Human EGFR Antibody
For research use only
Related Research Areas
Citations for Human EGFR Antibody
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- 7-Amino Actinomycin D (7-AAD) Cell Viability Flow Cytometry Protocol
- Antigen Retrieval Protocol (PIER)
- Antigen Retrieval for Frozen Sections Protocol
- Appropriate Fixation of IHC/ICC Samples
- Cellular Response to Hypoxia Protocols
- Chromogenic IHC Staining of Formalin-Fixed Paraffin-Embedded (FFPE) Tissue Protocol
- Chromogenic Immunohistochemistry Staining of Frozen Tissue
- Detection & Visualization of Antibody Binding
- Extracellular Membrane Flow Cytometry Protocol
- Flow Cytometry Protocol for Cell Surface Markers
- Flow Cytometry Protocol for Staining Membrane Associated Proteins
- Flow Cytometry Staining Protocols
- Flow Cytometry Troubleshooting Guide
- Fluorescent IHC Staining of Frozen Tissue Protocol
- Graphic Protocol for Heat-induced Epitope Retrieval
- Graphic Protocol for the Preparation and Fluorescent IHC Staining of Frozen Tissue Sections
- Graphic Protocol for the Preparation and Fluorescent IHC Staining of Paraffin-embedded Tissue Sections
- Graphic Protocol for the Preparation of Gelatin-coated Slides for Histological Tissue Sections
- ICC Cell Smear Protocol for Suspension Cells
- ICC Immunocytochemistry Protocol Videos
- ICC for Adherent Cells
- IHC Sample Preparation (Frozen sections vs Paraffin)
- ISH-IHC Protocol for Chromogenic Detection on Formalin Fixed Paraffin Embedded (FFPE) Tissue
- Immunocytochemistry (ICC) Protocol
- Immunocytochemistry Troubleshooting
- Immunofluorescence of Organoids Embedded in Cultrex Basement Membrane Extract
- Immunofluorescent IHC Staining of Formalin-Fixed Paraffin-Embedded (FFPE) Tissue Protocol
- Immunohistochemistry (IHC) and Immunocytochemistry (ICC) Protocols
- Immunohistochemistry Frozen Troubleshooting
- Immunohistochemistry Paraffin Troubleshooting
- Immunoprecipitation Protocol
- Intracellular Flow Cytometry Protocol Using Alcohol (Methanol)
- Intracellular Flow Cytometry Protocol Using Detergents
- Intracellular Nuclear Staining Flow Cytometry Protocol Using Detergents
- Intracellular Staining Flow Cytometry Protocol Using Alcohol Permeabilization
- Intracellular Staining Flow Cytometry Protocol Using Detergents to Permeabilize Cells
- Preparing Samples for IHC/ICC Experiments
- Preventing Non-Specific Staining (Non-Specific Binding)
- Primary Antibody Selection & Optimization
- Propidium Iodide Cell Viability Flow Cytometry Protocol
- Protocol for Heat-Induced Epitope Retrieval (HIER)
- Protocol for Making a 4% Formaldehyde Solution in PBS
- Protocol for VisUCyte™ HRP Polymer Detection Reagent
- Protocol for the Characterization of Human Th22 Cells
- Protocol for the Characterization of Human Th9 Cells
- Protocol for the Fluorescent ICC Staining of Cell Smears - Graphic
- Protocol for the Fluorescent ICC Staining of Cultured Cells on Coverslips - Graphic
- Protocol for the Preparation & Fixation of Cells on Coverslips
- Protocol for the Preparation and Chromogenic IHC Staining of Frozen Tissue Sections
- Protocol for the Preparation and Chromogenic IHC Staining of Frozen Tissue Sections - Graphic
- Protocol for the Preparation and Chromogenic IHC Staining of Paraffin-embedded Tissue Sections
- Protocol for the Preparation and Chromogenic IHC Staining of Paraffin-embedded Tissue Sections - Graphic
- Protocol for the Preparation and Fluorescent ICC Staining of Cells on Coverslips
- Protocol for the Preparation and Fluorescent ICC Staining of Non-adherent Cells
- Protocol for the Preparation and Fluorescent ICC Staining of Stem Cells on Coverslips
- Protocol for the Preparation and Fluorescent IHC Staining of Frozen Tissue Sections
- Protocol for the Preparation and Fluorescent IHC Staining of Paraffin-embedded Tissue Sections
- Protocol for the Preparation of Gelatin-coated Slides for Histological Tissue Sections
- Protocol for the Preparation of a Cell Smear for Non-adherent Cell ICC - Graphic
- Protocol: Annexin V and PI Staining by Flow Cytometry
- Protocol: Annexin V and PI Staining for Apoptosis by Flow Cytometry
- R&D Systems Quality Control Western Blot Protocol
- TUNEL and Active Caspase-3 Detection by IHC/ICC Protocol
- The Importance of IHC/ICC Controls
- Troubleshooting Guide: Fluorokine Flow Cytometry Kits
- Troubleshooting Guide: Immunohistochemistry
- Troubleshooting Guide: Western Blot Figures
- Western Blot Conditions
- Western Blot Protocol
- Western Blot Protocol for Cell Lysates
- Western Blot Troubleshooting
- Western Blot Troubleshooting Guide
- View all Protocols, Troubleshooting, Illustrated assays and Webinars