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This protein carries a human IgG1 Fc tag at the C-terminus
The protein has a calculated MW of 51.5 kDa. The protein migrates as 66-100 kDa under reducing (R) condition, and 120-140 kDa under non-reducing (NR) condition (SDS-PAGE) due to glycosylation.
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, 25 mM Arginine, 10 mM 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:
Human B7-2, Fc Tag, premium grade on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.
The purity of Human B7-2, Fc Tag, premium grade (Cat. No. CD6-H5257) is more than 90% and the molecular weight of this protein is around 120-150 kDa verified by SEC-MALS.
Immobilized Human B7-2, Fc Tag, premium grade (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 Biotinylated Mouse CD28, His,Avitag (Cat. No. CD8-M82E3) at 1 μg/mL (100 μL/well) on Streptavidin (Cat. No. STN-N5116) precoated (0.5 μg/well) plate, can bind Human B7-2, Fc Tag, premium grade (Cat. No. CD6-H5257) with a linear range of 5-78 ng/mL (Routinely tested).
Immobilized Biotinylated Human / Cynomolgus / Rhesus macaque CD28, His,Avitag (Cat. No. CD8-H82E5) at 1 μg/mL (100 μL/well) on Streptavidin (Cat. No. STN-N5116) precoated (0.5 μg/well) plate, can bind Human B7-2, Fc Tag, premium grade (Cat. No. CD6-H5257) with a linear range of 2-78 ng/mL (Routinely tested).
Loaded Human B7-2, Fc Tag, premium grade (Cat. No. CD6-H5257) on Protein A Biosensor, can bind Human / Cynomolgus / Rhesus macaque CD28, His Tag (Cat. No. CD8-H52Hc) with an affinity constant of 4.5 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Loaded Human B7-2, Fc Tag, premium grade (Cat. No. CD6-H5257) on Protein A Biosensor, can bind Human CTLA-4, His Tag (Cat. No. CT4-H52H9) with an affinity constant of 1.03 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Flow Cytometry assay shows that recombinant Human B7-2, Fc Tag, premium grade (Cat.No. CD6-H5257) can bind to CD28 expressed on Jurkat E6.1. The concentration of B7-2 used is 2 μg/ml (Routinely tested).
FACS analysis shows that the binding of Human B7-2, Fc Tag, premium grade (Cat. No. CD6-H5257) to CD28 expressed on Jurkat E6.1 was inhibited by increasing concentration of neutralizing anti-CD28 antibody. The concentration of B7-2 used is 2 μg/ml. The IC50 is 0.022 μg/ml (Routinely tested).
FACS assay shows that Human B7-2, Fc Tag, premium grade (Cat. No. CD6-H5257) can bind to 293T cells overexpressing human CTLA4 protein. The concentration of Human B7-2 is 3 μg/ml (Routinely tested).
Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.
Price(USD) : $340.00
Price(USD) : $1440.00
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