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Cell Signaling Phospho-Her2/Erbb2 (Tyr877) Antibody
List Price
$360.57
Your Price
$360.57
Cell Signaling Phospho-Her2/Erbb2 (Tyr877) Antibody - CSIG (Additional S&H or Hazmat Fees May Apply)
NETA PART:
CSIG-2241S
MFG.PART:
2241S
UNSPSC:
12352203
Manufacturer:
Cell Signaling
| Size | 100 µl |
| Reactivity | H M |
| Sensitivity | Endogenous |
| Molecular Weight (kDa) | 185 |
| Source/Isotype | Rabbit |
| Application/Dilution | {Western Blotting: 1:1000} |
| Storage | Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody. |
| Specificity/Sensitivity | Phospho-HER2/ErbB2 (Tyr877) Antibody detects endogenous levels of ErbB2 only when phosphorylated at tyrosine 877. The antibody may cross-react with other ErbB family members (e.g., EGF receptor) when phosphorylated at their tyrosine residues. |
| Species Reactivity | Human, Mouse |
| Source/Purification | Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Tyr877 of human ErbB2. Antibodies are purified by protein A and peptide affinity chromatography. |
| Background | The ErbB2 (HER2) proto-oncogene encodes a 185 kDa transmembrane, receptor-like glycoprotein with intrinsic tyrosine kinase activity (1). While ErbB2 lacks an identified ligand, ErbB2 kinase activity can be activated in the absence of a ligand when overexpressed and through heteromeric associations with other ErbB family members (2). Amplification of the ErbB2 gene and overexpression of its product are detected in almost 40% of human breast cancers (3). Binding of the c-Cbl ubiquitin ligase to ErbB2 at Tyr1112 leads to ErbB2 poly-ubiquitination and enhances degradation of this kinase (4). ErbB2 is a key therapeutic target in the treatment of breast cancer and other carcinomas and targeting the regulation of ErbB2 degradation by the c-Cbl-regulated proteolytic pathway is one potential therapeutic strategy. Phosphorylation of the kinase domain residue Tyr877 of ErbB2 (homologous to Tyr416 of pp60c-Src) may be involved in regulating ErbB2 biological activity. The major autophosphorylation sites in ErbB2 are Tyr1248 and Tyr1221/1222; phosphorylation of these sites couples ErbB2 to the Ras-Raf-MAP kinase signal transduction pathway (1,5). |
| SKU | CSIG-2241S |
|---|---|
| Featured | No |
| Supplier Part Number | 2241S |
| UM | EA |
| UNSPSC | 12352203 |
| Manufacturer Name | Cell Signaling |
| MSDS URL | Click here |
| Temperature | -20C |
| CountryOfOrigin | United States |
| ProductLine | CSIG |
| Qty | 1 |
| MinOrderQty | 1 |
| Weight | 7.000000 |
| Lead Time | 5 |
| Hazardous | N |
| ACT Ecolabel | No |