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This protein carries a human IgG1 Fc tag at the C-terminus, followed by a Avi tag (Avitag™).
The protein has a calculated MW of 41.8 kDa. The protein migrates as 48-60 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
>95% as determined by reduced SDS-PAGE.
Lyophilized from 0.22 μm filtered solution in Tris with Glycine, Arginine and NaCl, pH7.5. Normally trehalose is added as protectant before lyophilization.
Contact us for customized product form or formulation.
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
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:
-20°C to -70°C for 12 months in lyophilized state;
-70°C for 3 months under sterile conditions after reconstitution.
Biotinylated Human CTLA-4, Fc,Avitag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.
Serial dilutions of Ipilimumab neutralizing antibody (1:2 serial dilutions, from 40 μg/mL to 0.019 μg/mL) were added into Human B7-1, Fc Tag (Cat. No. B71-H5259): Biotinylated Human CTLA-4, Fc,Avitag (Cat. No. CT4-H82F3) binding reactions. The assay was performed according to the above described protocol. Background was subtracted from data points before curve fitting.
Serial dilutions of Ipilimumab neutralizing antibody (1:2 serial dilutions, from 40 μg/mL to 0.019 μg/mL) were added into Human B7-2, Fc Tag (Cat. No. CD6-H5257): Biotinylated Human CTLA-4, Fc,Avitag (Cat. No. CT4-H82F3) binding reactions. The assay was performed according to the above described protocol. Background was subtracted from data points before curve fitting.
Quantitative Analysis of CTLA-4 x OX40 Bispecific Antibody in Human Serum by Intact Assay.
Immobilized Human OX40, Fc Tag (Cat. No. OX0-H5255) at 2 μg/mL, add increasing concentrations of CTLA-4 x OX40 Bispecific Antibody in 50% Human serum and then add Biotinylated Human CTLA-4, Fc,Avitag (Cat. No. CT4-H82F3) at 0.2 μg/mL. Detection was performed using HRP-conjugated streptavidin with sensitivity of 2 ng/mL (Intact assay, Routinely tested).
Quantitative Analysis of CTLA-4 x OX40 Bispecific Antibody in Human Serum by Intact Assay.
Immobilized Human OX40 Protein, His Tag (MALS verified) (Cat. No. OX0-H5224) at 2 μg/mL, add increasing concentrations of CTLA-4 x OX40 bispecific antibody in 50% Human serum and then add Biotinylated Human CTLA-4, Fc,Avitag (Cat. No. CT4-H82F3) at 0.2 μg/mL. Detection was performed using HRP-conjugated streptavidin with sensitivity of 4 ng/mL (Intact assay, Routinely tested).
Authors: G Aravindhan, et al.
Journal: BBA-GEN SUBJECTS 2018
Application: ELISA
Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.
Price(USD) : $250.00
Price(USD) : $980.00
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