Product Pathways - Tyrosine Kinase / Adaptors
HER2/ErbB2 (D8F12) XP® Rabbit mAb (Biotinylated) #8609
|8609S||100 µl (10 western blots)||---||In Stock||---|
|8609||carrier free and custom formulation / quantity||email request|
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Applications Key: W=Western Blotting
Species predicted to react based on 100% sequence homology: Mouse, Rat.
Specificity / Sensitivity
HER2/ErbB2 (D8F12) XP® Rabbit mAb (Biotinylated) detects endogenous levels of total HER2/ErbB2 protein.
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues near the amino terminus of human HER2/ErbB2 protein.
This Cell Signaling Technology antibody is conjugated to biotin under optimal conditions. The biotinylated antibody is expected to exhibit the same species cross-reactivity as the unconjugated HER2/ErbB2 (D8F12) XP® Rabbit mAb #4290.
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).
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For Research Use Only. Not For Use In Diagnostic Procedures.
XP® is a trademark of Cell Signaling Technology, Inc.
Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.