膜杰作
Star Staining
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 Bevacizumab F(ab')2.
亚型（Isotype）
Mouse IgG1/kappa
特异性（Specificity）
Recognizes Bevacizumab 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）
>95% 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:
- 4-8°C for 12 months in lyophilized state;
- -70°C for 12 months under sterile conditions after reconstitution.
电泳（SDS-PAGE）
Biotinylated Anti-Bevacizumab Antibody (AY13) on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.
活性（Bioactivity）-ELISA
Detection of bevacizumab by bridging ELISA in serum. Immobilized Anti-Bevacizumab Antibody (AY10) (Cat. No. BEB-Y10) at 2 μg/mL, add increasing concentrations of bevacizumab (10% human serum) and then add Biotinylated Anti-Bevacizumab Antibody (AY13) (Cat. No. BEB-BY13) at 2 μg/mL. Detection was performed using HRP-conjugated streptavidin with a sensitivity of 0.4 μg/mL.
Protocol
Immobilized bevacizumab at 1 μg/mL (100 μL/well) can bind Biotinylated Anti-Bevacizumab Antibody (AY13) (Cat. No. BEB-BY13) with a linear range of 0.78-25.5 ng/mL.
Protocol
ELISA analysis shows that the binding of bevacizumab to Human VEGF165, premium grade (Cat. No. VE5-H4210) was inhibited by increasing concentration of Biotinylated Anti-Bevacizumab Antibody (AY13) (Cat. No. BEB-BY13). The concentration of bevacizumab used is 4 ng/mL.
Protocol
背景（Background）
A recombinant humanized monoclonal IgG1 antibody that binds to and inhibits the biologic activity of human vascular endothelial growth factor (VEGF). Bevacizumab contains human framework regions and the complementarity-determining regions of a murine antibody that binds to VEGF. Bevacizumab is produced in a Chinese Hamster Ovary mammalian cell expression system in a nutrient medium containing the antibiotic gentamicin and has a molecular weight of approximately 149 kilodaltons.
