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9923
Phospho-HER2/ErbB2 Antibody Sampler Kit
Primary Antibodies
Antibody Sampler Kit
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Phospho-HER2/ErbB2 Antibody Sampler Kit #9923

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Phospho-HER2/ErbB2 Antibody Sampler Kit: Image 1
Western blot analysis of extracts from cells expressing different activated tyrosine kinase proteins, using Phospho-HER2/ErbB2 (Tyr1221/1222) (6B12) Rabbit mAb (upper) or Phospho-Tyrosine mAb (P-Tyr-100) #9411 (lower). Phospho-HER2/ErbB2 (Tyr1221/1222) (6B12) Rabbit mAb specifically detects phosphorylated HER2/ErbB2 but not other phosphorylated tyrosine kinases.
Phospho-HER2/ErbB2 Antibody Sampler Kit: Image 2
Western blot analysis of activated recombinant HER2/ErbB2 and HER1/EGFR tyrosine kinase proteins, using Phospho-HER2/ErbB2 (Tyr1248) (upper), EGF Receptor (D38B1) XP® Rabbit mAb #4267 (middle) or HER2/ErbB2 (29D8) Rabbit mAb #2165 (lower). Phospho-HER2/ErbB2 (Tyr1248) specifically detects phosphorylated HER2/ErbB2 but not phosphorylated HER1/EGFR.
Phospho-HER2/ErbB2 Antibody Sampler Kit: Image 3
Western blot analysis of extracts from SK-BR-3 and MCF7 cells using HER2/ErbB2 (D8F12) XP® Rabbit mAb.
Phospho-HER2/ErbB2 Antibody Sampler Kit: Image 4
After the primary antibody is bound to the target protein, a complex with HRP-linked secondary antibody is formed. The LumiGLO® is added and emits light during enzyme catalyzed decomposition.
Phospho-HER2/ErbB2 Antibody Sampler Kit: Image 5
Immunohistochemical analysis of paraffin-embedded human breast carcinoma, showing membrane localization, using Phospho-HER2/ErbB2 (Tyr1221/1222) (6B12) Rabbit mAb.
Phospho-HER2/ErbB2 Antibody Sampler Kit: Image 6
Western blot analysis of T47D and MCF7 cells untreated or treated with Neuregulin (100 ng/ml) for 5 minutes, using Phospho-HER2/ErbB2 (Tyr1248) Antibody (upper) or HER2/ErbB2 (D8F12) XP® Rabbit mAb #4290 (lower).
Phospho-HER2/ErbB2 Antibody Sampler Kit: Image 7
Immunohistochemical analysis of paraffin-embedded human urothelial carcinoma using HER2/ErbB2 (D8F12) XP® Rabbit mAb performed on the Leica® BOND™ Rx. 
Phospho-HER2/ErbB2 Antibody Sampler Kit: Image 8
Immunohistochemical analysis of paraffin-embedded SkBr3 cell pellets untreated (left) EGF-treated (right) either untreated (top) or lambda-phosphatase-treated (bottom), using Phospho-HER2/ErbB2 (Tyr1221/1222) (6B12) Rabbit mAb.
Phospho-HER2/ErbB2 Antibody Sampler Kit: Image 9
Immunohistochemical analysis of paraffin-embedded human urothelial carcinoma using HER2/ErbB2 (D8F12) XP® Rabbit mAb performed on the Leica® BOND™ Rx. 
Phospho-HER2/ErbB2 Antibody Sampler Kit: Image 10
Immunohistochemical analysis of paraffin-embedded human renal adenocarcinoma, using Phospho-HER2/ErbB2 (Tyr1221/1222) (6B12) Rabbit mAb in the presence of control peptide (left) or Phospho-HER2/ErbB2 (Tyr1221/1222) Blocking Peptide #1254 (right).
Phospho-HER2/ErbB2 Antibody Sampler Kit: Image 11
Immunohistochemical analysis of paraffin-embedded human lung adenocarcinoma using HER2/ErbB2 (D8F12) XP® Rabbit mAb performed on the Leica® BOND™ Rx. 
Phospho-HER2/ErbB2 Antibody Sampler Kit: Image 12
Immunohistochemical analysis of paraffin-embedded human NCI-H358 xenograft, using Phospho-HER2/ErbB2 (Tyr1221/1222) (6B12) Rabbit mAb.
Phospho-HER2/ErbB2 Antibody Sampler Kit: Image 13
Immunohistochemical analysis of paraffin-embedded human prostate carcinoma using HER2/ErbB2 (D8F12) XP® Rabbit mAb performed on the Leica® BOND™ Rx. 
Phospho-HER2/ErbB2 Antibody Sampler Kit: Image 14
Immunohistochemical analysis of paraffin-embedded human breast carcinoma using HER2/ErbB2 (D8F12) XP® Rabbit mAb.
Phospho-HER2/ErbB2 Antibody Sampler Kit: Image 15
Immunohistochemical analysis of paraffin-embedded human ductal breast carcinoma using HER2/ErbB2 (D8F12) XP® Rabbit mAb.
Phospho-HER2/ErbB2 Antibody Sampler Kit: Image 16
Immunohistochemical analysis of paraffin-embedded SK-BR-3 (Her2 high, left) and MCF7 cell pellets (Her2 low, right) using HER2/ErbB2 (D8F12) XP® Rabbit mAb.
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To Purchase # 9923
Cat. # Size Qty. Price
9923T		 1 Kit  (3 x 20 microliters)
$ 278

Custom Formulation

Product Includes Quantity Applications Reactivity MW(kDa) Isotype
Phospho-HER2/ErbB2 (Tyr1248) Antibody 2247 20 µl
  • WB
 H M 185 Rabbit 
Phospho-HER2/ErbB2 (Tyr1221/1222) (6B12) Rabbit mAb 2243 20 µl
  • WB
  • IHC
 H M 185 Rabbit IgG
HER2/ErbB2 (D8F12) XP® Rabbit mAb 4290 20 µl
  • WB
  • IHC
 H M 185 Rabbit IgG
Anti-rabbit IgG, HRP-linked Antibody 7074 100 µl
  • WB
 Goat 

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.

Specificity / Sensitivity

Each phospho-HER2/ErbB2 antibody recognizes only the phosphorylated form of HER2/ErbB2 at the indicated sites. The control HER2/ErbB2 receptor antibody recognizes both phosphorylated and nonphosphorylated forms of HER2/ErbB2.

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Tyr1248. Polyclonal antibodies are purified by protein A and peptide affinity chromatography. Monoclonal antibodies are produced by immunizing animals with synthetic peptides corresponding to residues surrounding tyrosines 1221/1222 and residues near the amino terminus of human ErbB2 protein.

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).
  1. Muthuswamy, S.K. et al. (1999) Mol Cell Biol 19, 6845-57.
  2. Qian, X. et al. (1994) Proc Natl Acad Sci USA 91, 1500-4.
  3. Dittadi, R. and Gion, M. (2000) J Natl Cancer Inst 92, 1443-4.
  4. Klapper, L.N. et al. (2000) Cancer Res 60, 3384-8.
  5. Kwon, Y.K. et al. (1997) J Neurosci 17, 8293-9.

Pathways & Proteins

Explore pathways + proteins related to this product.

Limited Uses

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Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

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