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Key Specifications Table
| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| H, R | ICC, WB | Rb | Affinity Purified | Polyclonal Antibody |
| Description | |
|---|---|
| Catalogue Number | 06-229-25UL |
| Brand Family | Upstate |
| Trade Name |
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| Description | Anti-phospho-erbB-2/HER-2 (Tyr1248) |
| Alternate Names |
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| Background Information | The ErbB-2 proto-oncogene, also called Neu, EGFR-2 or HER-2, is a member of the transmembrane receptor tyrosine kinase family, which also includes EGF receptor and EGFR-3 (HER-3 or ErbB-3). Although, ErbB-2 does not have any known high-affinity ligands, its kinase activity can be activated without ligand by either overexpression or heteroassociation with other members of the ErbB family. Amplification of the ErbB-2 gene and overexpression of its product has been detected in almost 40% of primary human breast tumors, which correlates with poor prognosis in node positive breast cancer. ErbB-2 overexpression is also observed in ovarian, gastric, salivary and non-small cell lung carcinomas. Because of this, ErbB-2 is one of the major drug targets for breast cancer and other cancer treatments. |
| Product Information | |
|---|---|
| Format | Affinity Purified |
| Control |
|
| Presentation | Double immunoaffinity purified rabbit polyclonal IgG in buffer containing 0.1M Tris-Glycine, 0.15M NaCl, 0.05% Sodium Azide, pH7.4 |
| Quality Level | MQ100 |
| Applications | |
|---|---|
| Application | This Anti-phospho-erbB-2/HER-2 (Tyr1248) Antibody is validated for use in IC, WB for the detection of phospho-erbB-2/HER-2 (Tyr1248). |
| Key Applications |
|
| Application Notes | Immunohistochemistry: IHC was performed by an independent laboratory. Immunocytochemistry: 2 µg/mL of a previous lot showed positive immunostaining for phospho-erbB2/HER-2 in EGF treated A431 cells. |
| Biological Information | |
|---|---|
| Immunogen | Synthetic phosphopeptide, residues 1243-1255, corresponding to a major auto-phosphorylation (Tyr1248) site of human erbB-2/HER-2 (C-AENPEpYLGLDVPV). |
| Epitope | Tyr1248 |
| Concentration | Please refer to lot specific datasheet. |
| Host | Rabbit |
| Specificity | Recognizes and is specific for the activated form of erbB-2/HER-2 oncoprotein, MW ~138 kDa. |
| Isotype | IgG |
| Species Reactivity |
|
| Species Reactivity Note | Human. Predicted to cross react with rat based on conservation of immunogenic sequence. |
| Antibody Type | Polyclonal Antibody |
| Entrez Gene Number |
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| Entrez Gene Summary | This gene encodes a member of the epidermal growth factor (EGF) receptor family of receptor tyrosine kinases. This protein has no ligand binding domain of its own and therefore cannot bind growth factors. However, it does bind tightly to other ligand-bound EGF receptor family members to form a heterodimer, stabilizing ligand binding and enhancing kinase-mediated activation of downstream signalling pathways, such as those involving mitogen-activated protein kinase and phosphatidylinositol-3 kinase. Allelic variations at amino acid positions 654 and 655 of isoform a (positions 624 and 625 of isoform b) have been reported, with the most common allele, Ile654/Ile655, shown here. Amplification and/or overexpression of this gene has been reported in numerous cancers, including breast and ovarian tumors. Alternative splicing results in several additional transcript variants, some encoding different isoforms and others that have not been fully characterized. |
| Gene Symbol |
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| Modifications |
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| Purification Method | ImmunoAffinity Purified |
| UniProt Number |
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| UniProt Summary | FUNCTION:SwissProt: P04626 # Essential component of a neuregulin-receptor complex, although neuregulins do not interact with it alone. GP30 is a potential ligand for this receptor. Not activated by EGF, TGF- alpha and amphiregulin. SIZE: 1255 amino acids; 137910 Da SUBUNIT: Heterodimer with each of the other ERBB receptors (Potential). Interacts with PRKCABP and PLXNB1. Part of a complex with EGFR and either PIK3C2A or PIK3C2B. May interact with PIK3C2B when phosphorylated on Tyr-1196. Interacts with MEMO when phosphorylated on Tyr-1248. SUBCELLULAR LOCATION: Membrane; Single-pass type I membrane protein. PTM: Ligand-binding increases phosphorylation on tyrosine residues (By similarity). SIMILARITY: SwissProt: P04626 ## Belongs to the protein kinase superfamily. Tyr protein kinase family. EGF receptor subfamily. & Contains 1 protein kinase domain. |
| Molecular Weight | 185 kDa |
| Product Usage Statements | |
|---|---|
| Quality Assurance | Evaluated by Western Blot on A431+/-EGF lysates. Western Blotting Analysis: 1:1000 dilution of this antibody detected phospho-erbB2/Her2 on 10 µg of A431+EGF lysates. |
| Usage Statement |
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| Storage and Shipping Information | |
|---|---|
| Storage Conditions | Stable for 1 year at -20ºC 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 | 25 µL |