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Commit: 461ca8d8fe5b1efd4c01fc87e5b5eb592e2d154a
XML generation date: 2025-03-07 13:14:28.808
Product last modified at: 2025-01-01T09:00:20.003Z
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PDP - Template Name: Antibody Sampler Kit
PDP - Template ID: *******4a3ef3a

Phospho-HER2/ErbB2 Antibody Sampler Kit #9923

    Product Information

    Product Description

    The Phospho-HER2/ErbB2 Antibody Sampler Kit provides an economical means to evaluate the activation status of HER2/ErbB2, including the phosphorylation of Tyr1248 and Tyr1221/1222. The control HER2/ErbB2 antibody is also included. The kit contains enough primary antibodies to perform two Western blot experiments per primary antibody.

    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).
    For Research Use Only. Not For Use In Diagnostic Procedures.
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