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Your Position: Home > Antibodies > Trastuzumab > Anti-Trastuzumab Antibodies

Anti-Trastuzumab Antibodies

  • Source
    Mouse monoclonal antibody is produced from a hybridoma resulting from fusion of SP2/0 myeloma and B-lymphocytes obtained from a mouse immunized with Trastuzumab F(ab')2.
  • Isotype
  • Specificity
    Recognizes Trastuzumab specifically, no cross reactivity with other humanized antibodies.
  • Purity

    >95% as determined by SDS-PAGE.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, 25mM Arginine, 150 mM NaCl, pH7.5. Normally trehalose is added as protectant before lyophilization.

  • Reconstitution

    Please see Certificate of Analysis for specific instructions.

    For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

  • Storage

    For long term storage, the product should be stored at lyophilized state at -20°C or lower.

    Please avoid repeated freeze-thaw cycles.

    No activity loss was observed after storage at:

    1. 4-8°C for 12 months in lyophilized state;

    2. -70°C for 3 years under sterile conditions after reconstitution.

Anti-Trastuzumab Antibodies (Cat. No. TRB-Y7) SDS-PAGE gel

Anti-Trastuzumab Antibodies on SDS-PAGE  under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.

Anti-Trastuzumab AntibodiesAnti-Trastuzumab Antibodies (Cat. No. TRB-Y7) ELISA bioactivity

Anti-Trastuzumab Antibodies bridging ELISA for Anti-Drug Antibody (ADA) assay development.Immobilized trastuzumab at 1 µg/ml, added increasing concentrations of Anti-Trastuzumab Antibodies (Cat. No. TRB-Y7, 10% human serum) and then added biotinylated trastuzumab at 2 µg/ml. Detection was performed using HRP-conjugated streptavidin with a sensitivity of 19 ng/mL.

Anti-Trastuzumab AntibodiesAnti-Trastuzumab Antibodies (Cat. No. TRB-Y7) ELISA bioactivity

Demonstration of the specificity of Anti-Trastuzumab Antibodies (Cat. No. TRB-Y7) to the trastuzumab.

Anti-Trastuzumab AntibodiesAnti-Trastuzumab Antibodies (Cat. No. TRB-Y7) ELISA bioactivity

Measured by its neutralizing ability in a functional ELISA.  Immobilized trastuzumab at 0.5 μg/mL (100 μL/well) can bind pre-mixed Anti-Trastuzumab Antibodies (Cat. No. TRB-Y7) and Biotinylated Human HER2 (Cat. No. HE2-H82E2) with a inhibition rate  of 89%.


Anti-Trastuzumab Antibodies (mouse IgG1, Cat. No. TRB-Y7) captured on CM5 chip via anti-mouse antibodies surface, can bind human trastuzumab with an affinity constant of 0.452 nM.

  • Background
    Trastuzumab, is a monoclonal antibody used to treat breast cancer. Specifically it is used for breast cancer that is HER2 receptor positive. Trastuzumab works by binding to the HER2 receptor and slowing down cell duplication. Trastuzumab is a recombinant IgG1 kappa, humanized monoclonal antibody that selectively binds with high affinity in a cell-based assay (Kd = 5 nM) to the extracellular domain of the human epidermal growth factor receptor protein.
  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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Price(USD) : $300.00

Price(USD) : $1980.00

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