This protein carries a human IgG1 Fc fragment at the C-terminus, followed by a polyhistidine tag. The Avi tag (Avitag™) is inserted in-between the Fc and his tags. The protein has a calculated MW of 54.0 kDa. The protein migrates as 66-75 kDa on a SDS-PAGE gel under reducing (R) condition due to glycosylation.
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
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:
Biotinylated Human PD-L1, Fc,Avitag,His Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.
The purity of Biotinylated Human PD-L1, Fc,Avitag,His Tag (Cat. No. PD1-H82F3) is more than 90% and the molecular weight of this protein is around 120-135 kDa verified by SEC-MALS.
Immobilized Human PD-1, Fc Tag, low endotoxin (HPLC-verified) (Cat. No. PD1-H5257) at 2 μg/mL (100 μL/well) can bind Biotinylated Human PD-L1, Fc,Avitag,His Tag (Cat. No. PD1-H82F3) with a linear range of 2-39 ng/mL (QC tested).
Flow Cytometry assay shows that Biotinylated Human PD-L1, Fc,Avitag,His Tag (Cat.No. PD1-H82F3) can bind to 293 cell overexpressing human PD-1. The concentration of PD-L1 used is 1 μg/mL (Routinely tested).
FACS analysis shows that the binding of Biotinylated Human PD-L1, Fc,Avitag,His Tag (Cat. No. PD1-H82F3) to 293 overexpressing PD-1 was inhibited by increasing concentration of neutralizing anti-PD-1 antibody. The concentration of PD-L1 used is 2 μg/mL. The IC50 is 0.64 μg/mL (Routinely tested).
Immobilized cell surface PD-1 (5x104 of cells per well) can bind Biotinylated Human PD-L1, Fc,Avitag,His Tag (Cat. No. PD1-H82F3) with an EC50 of 0.082 μg/mL (Routinely tested).
Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.
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