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 >  Antibody>Cetuximab >CEB-BY31

Biotinylated Anti-Cetuximab Antibody (AY31) (recommended for PK/PD)

抗体来源(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 Cetuximab F(ab')2.

亚型(Isotype)

Mouse IgG1/kappa

特异性(Specificity)

Recognizes Cetuximab specifically, no cross reactivity with other humanized antibodies.

标记(Labeling)

The primary amines in the side chains of lysine residues and the N-terminus of the protein are conjugated with biotins using standard chemical labeling method. A specially optimized long-spacer biotin reagent (13.5 angstroms) is used in this product to minimize potential steric hindrance.

蛋白标记度(Protein Ratio)

Passed as determined by the HABA assay / binding ELISA.

纯度(Purity)

>90% as determined by SDS-PAGE.

制剂(Formulation)

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

Contact us for customized product form or formulation.

重构方法(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.

存储(Storage)

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

Please avoid repeated freeze-thaw cycles.

This product is stable after storage at:

  1. 4-8°C for 12 months in lyophilized state;
  2. -70°C for 12 months under sterile conditions after reconstitution.
 

电泳(SDS-PAGE)

Cetuximab SDS-PAGE

Biotinylated Anti-Cetuximab Antibody (AY31) on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90%.

 

活性(Bioactivity)-ELISA

Cetuximab ELISA

Immobilized Anti-Cetuximab Antibody (12B1E9) (Cat. No.CEB-Y29c) at 2 μg/mL, add increasing concentrations of Cetuximab and then add Biotinylated Anti-Cetuximab Antibody (AY31) (Cat. No.CEB-BY31) at 1 μg/mL. Detection was performed using HRP-conjugated streptavidin with sensitivity of 4.84 ng/mL (QC tested).

Protocol

Cetuximab ELISA

Immobilized cetuximab at 0.1 μg/mL (100 μL/well) can bind Biotinylated Anti-Cetuximab Antibody (AY31) (Cat. No. CEB-BY31) with a linear range of 0.39-25 ng/mL.

Protocol

Cetuximab ELISA

ELISA analysis shows that the binding of cetuximab to Human EGF R, His Tag (Cat. No. EGR-H5222) was inhibited by increasing concentration of Biotinylated Anti-Cetuximab Antibody (AY31) (Cat. No. CEB-BY31). The concentration of cetuximab used is 3 ng/mL.

Protocol

 

背景(Background)

Cetuximab is an epidermal growth factor receptor binding FAB. Cetuximab is composed of the Fv (variable; antigen-binding) regions of the 225 murine EGFr monoclonal antibody specific for the N-terminal portion of human EGFr with human IgG1 heavy and kappa light chain constant (framework) regions.

 

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