 Methods & Techniques For Histologists and Immunohistochemists |
c-erbB-2/HER-2/neu Antibody Staining Protocol for Immunohistochemistry
Description: c-erbB-2, second member (c-erbB- 2/HER-2/neu) of the c-erbB family is a receptor tyrosine kinase. It exhibits extracellular domains with two cysteine-rich sequences, and a cytoplasmic tyrosine kinase domain flanked by large hydrophilic tails that carry several tyrosine autophosphorylation sites. Approximately 25% of primary breast and ovarian tumors were found to overexpress the protein.
Primary Antibody
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Name: c-erbB-2/HER-2/neu Ab-1 (21N) Antibody |
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Clone: Rabbit polyclonal |
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Supplier: Lab Vision |
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Catalog Number: RB-103-P |
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Dilution: 1:500 |
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Incubation Time/Temp: 60 minutes/room temperature |
Antigen Retrieval
| Device: Steamer |
| Buffer/pH value: Tris-EDTA/pH 9.0 |
| Heat/Cool Temperature: 95-100 ºC/room temperature |
| Heat/Cool Time: 20 minutes/20 minutes |
Detection Methods
| Standard Method: ABC Method or LSAB Method |
| Enhanced Method: Polymeric Methods |
Chromogen Substrate
| Reagent: DAB |
| Incubation Time/Temperature: 1-3 minutes/room temperature |
Counterstain
| Reagent: Gill's Hematoxylin or Mayer's Hematoxylin |
| Staining Time: 30 seconds |
Results:
| Staining Pattern: Membrane |
| Images: Search image |
Additional Information:
| Tissue Type: Breast carcinoma |
| Fixation: Formalin fixed paraffin sections |
| Positive Control: Breast carcinoma |
| Negative Control: Omit primary antibody, isotype control or absorption control |
| Blocking: 2-5% normal serum to reduce unspecific background staining; 0.5-3% H2O2 to block endogenous peroxidase activity; avidin/biotin to block endogenous biotin activity if necessary |
References: