Description_x000D_ General description_x000D_ The members of epidermal growth factor receptor (EGF R) or the ErbB receptor family have been identified as useful biomarkers and targets for cancer therapy. The EGFR family includes four receptor tyrosine kinases, EGF R (ErbB1), ErbB2 (neu), ErbB3, and ErbB4. EGF R binds EGF and induces tyrosine phosphorylation leading to proliferation of cells. EGF R is present on many cell types of epithelial and mesenchymal lineages. EGF R is capable of binding transforming growth factor-α and heparin-binding EGF in addition to EGF. There are numerous effector molecule activated by EGF R that result in a variety of biological processes such as morphogenesis, cell motility, apoptosis, differentiation and organ repair and maintenance. Deregulation of EGF R signaling is implicated in progression of a wide variety of tumors, invasion and metastasis. Phosphorylation of EGF R at Tyr1148 is required for the binding of protein tyrosine phosphatase, SHP-1, which results in dephosphorylation of EFG R_x000D_ Anti-phospho-EGFR [pTyr1173] specifically recognizes human EGFR phosphorylated at tyrosine 1173. Cross reactivity may be observed with mouse and rat._x000D_ Immunogen_x000D_ synthetic phosphopeptide derived from the region of EGFR that contains tyrosine 1173._x000D_ Application_x000D_ Anti-phospho-EGFR [pTyr1173] antibody may be used at a working dilution of 1:1000 for immunoblotting using A431 cells._x000D_ Physical form_x000D_ Solution in Dulbecco′s phosphate buffered saline (without Mg2+ and Ca2+), pH 7.3, with 50% glycerol, 1.0 mg/ml BSA (IgG, protease free) and 0.05% sodium azide._x000D_ Disclaimer_x000D_ Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.