Analysis Note

ControlEGF treated A431 cells

Application

Research CategorySignaling

Research Sub CategoryGrowth Factors & ReceptorsKinases & Phosphatases

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).

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.

Disclaimer

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.

General description

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.

Immunogen

Synthetic phosphopeptide, residues 1243-1255, corresponding to a major auto-phosphorylation (Tyr1248) site of human erbB-2/HER-2 (C-AENPEpYLGLDVPV).

Epitope: Tyr1248

Legal Information

UPSTATE is a registered trademark of Merck KGaA, Darmstadt, Germany

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Physical form

ImmunoAffinity Purified

Double immunoaffinity purified rabbit polyclonal IgG in buffer containing 0.1M Tris-Glycine, 0.15M NaCl, 0.05% Sodium Azide, pH7.4

Quality

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.

Specificity

Recognizes and is specific for the activated form of erbB-2/HER-2 oncoprotein, MW ~138 kDa.

Predicted to cross react with rat based on conservation of immunogenic sequence.

Storage and Stability

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.

Target description

185 kDa