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This protein carries a human IgG1 Fc tag at the C-terminus, followed by an 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 SDS-PAGE.
Lyophilized from 0.22 μm filtered solution in Tris with Glycine, Arginine and NaCl, pH7.5 with trehalose as protectant.
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:
Biotinylated Human CTLA-4, Fc,Avitag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.
Immobilized Human B7-2, Fc Tag (Cat. No. CD6-H5257) at 5 μg/mL (100 μL/well) can bind Biotinylated Human CTLA-4, Fc,Avitag (Cat. No. CT4-H82F3) with a linear range of 0.6-10 ng/mL (QC tested).
Immobilized Human B7-1, Fc Tag (Cat. No. B71-H5259) at 5 μg/mL (100 μL/well) can bind Biotinylated Human CTLA-4, Fc,Avitag (Cat. No. CT4-H82F3) with a linear range of 0.6-10 ng/mL (Routinely tested).
Immobilized Cynomolgus / Rhesus macaque B7-2, His Tag (Cat. No. CD6-C52H5) at 5 μg/mL (100 μL/well) can bind Biotinylated Human CTLA-4, Fc,Avitag (Cat. No. CT4-H82F3) with a linear range of 0.02-0.625 μg/mL (Routinely tested).
Immobilized Biotinylated Human CTLA-4, Fc,Avitag (Cat. No. CT4-H82F3) at 1 μg/mL (100 μL/well) on Streptavidin (Cat. No. STN-N5116) precoated (0.5 μg/well) plate, can bind Ipilimumab with a linear range of 0.2-2 ng/mL (Routinely tested).
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.
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