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Key Specifications Table
| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| H | IP, NEUT | M | Purified | Monoclonal Antibody |
| Description | |
|---|---|
| Catalogue Number | MABF120 |
| Replaces | 04-338 |
| Description | Anti-EGFR Antibody, clone 225 (Azide-free) |
| Alternate Names |
|
| Background Information | The epidermal growth factor receptor (EGFR; Proto-oncogene c-ErbB-1) is a ubiquitously receptor tyrosine kinase that is activated by a variety of ligands including EGF, EPGN, TGFA, and EREG. Ligand-bound EGFR undergoes dimerization and autophosphorylation exposing cytoplasmic domains which allow interaction with adaptor proteins and induction of several signaling pathways including PI3-AKT; PLCγ-PKC; Notch1; and Ras-Raf. EGFR therefore contributes to a diverse range of cellular processes inlcuding cell proliferation. Several studies have reported that EGFR signaling plays an important role in the development of various tumors. EGFR is regulated by PTPRJ and PTPRK phosphatases, and by the endocytic machinery including EPS15 that mediates internalization and degradation of the receptor. |
| Product Information | |
|---|---|
| Format | Purified |
| Control |
|
| Presentation | Purified mouse monoclonal IgG1κ in buffer containing PBS without preservatives. |
| Quality Level | MQ100 |
| Applications | |
|---|---|
| Application | Anti-EGFR Antibody, clone 225 (Azide-free) is an antibody against EGFR for use in Immunoprecipitation, Neutralizing. |
| Key Applications |
|
| Application Notes | Neutralizing Assay Analysis: A representative lot was used by an independent laboratory in A431 cells. (Kawamoto, T., et al. (1984). Journal of Biological Chemistry. 259(12):7761-7766.) |
| Biological Information | |
|---|---|
| Immunogen | Partially purified human EGFR from A431 cells |
| Clone | 225 |
| Concentration | Please refer to the Certificate of Analysis for the lot-specific concentration. |
| Host | Mouse |
| Isotype | IgG1κ |
| Species Reactivity |
|
| Antibody Type | Monoclonal Antibody |
| Entrez Gene Number |
|
| Entrez Gene Summary | The protein encoded by this gene is a transmembrane glycoprotein that is a member of the protein kinase superfamily. This protein is a receptor for members of the epidermal growth factor family. EGFR is a cell surface protein that binds to epidermal growth factor. Binding of the protein to a ligand induces receptor dimerization and tyrosine autophosphorylation and leads to cell proliferation. Mutations in this gene are associated with lung cancer. Multiple alternatively spliced transcript variants that encode different protein isoforms have been found for this gene. [provided by RefSeq, Jul 2010]. |
| Gene Symbol |
|
| Purification Method | Protein G Purified |
| UniProt Number |
|
| UniProt Summary | FUNCTION: Isoform 2/truncated isoform may act as an antagonist. SIZE: 1210 amino acids; 134277 Da SUBUNIT: Binds RIPK1. CBL interacts with the autophosphorylated C- terminal tail of the EGF receptor. Part of a complex with ERBB2 and either PIK3C2A or PIK3C2B. The autophosphorylated form interacts with PIK3C2B, maybe indirectly. Interacts with PELP1. SUBCELLULAR LOCATION: Cell membrane; Single-pass type I membrane protein. & Isoform 2: Secreted. TISSUE SPECIFICITY: Expressed in placenta. Isoform 2 is also expressed in ovarian cancers. PTM: Phosphorylation of Ser-695 is partial and occurs only if Thr- 693 is phosphorylated. & Monoubiquitinated and polyubiquitinated upon EGF stimulation; which does not affect tyrosine kinase activity or signaling capacity but may play a role in lysosomal targeting. Polyubiquitin linkage is mainly through Lys-63, but linkage through Lys-48, Lys-11 and Lys-29 also occur.DISEASE: Defects in EGFR are associated with lung cancer [MIM:211980]. SIMILARITY: Belongs to the protein kinase superfamily. Tyr protein kinase family. EGF receptor subfamily. & Contains 1 protein kinase domain. MISCELLANEOUS: Binding of EGF to the receptor leads to dimerization, internalization of the EGF-receptor complex, induction of the tyrosine kinase activity, stimulation of cell DNA synthesis, and cell proliferation. |
| Molecular Weight | ~170 kDa observed. Uniprot gives a calculated molecular weight of 135 but can be observed at ~170 kDa due to phosphorylation. (Konishi, A., et al. (2003). The Journal of Biological Chemistry. 278(37):35049–35056.) |
| Product Usage Statements | |
|---|---|
| Quality Assurance | Evaluated by Immunoprecipitation in A431 cell lysate. Immunoprecipitation Analysis: 10 µg of this antibody immunoprecipitated EGFR from A431 cell lysate. |
| Usage Statement |
|
| Storage and Shipping Information | |
|---|---|
| Storage Conditions | Stable for 1 year at -20°C from date of receipt. Handling Recommendations: Upon receipt and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance. |
| Packaging Information | |
|---|---|
| Material Size | 100 µg |