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Limited Edition Golden Llama is here! Check out how you can get one. 
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This protein carries a human IgG1 Fc tag at the C-terminus.
The protein has a calculated MW of 45.7 kDa. The protein migrates as 47-55 kDa under reducing (R) 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 PBS, pH7.4 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 IFN-alpha 2b, Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.
The purity of Human IFN-alpha 2b, Fc Tag (Cat. No. IFB-H5253) is more than 90% and the molecular weight of this protein is around 95-105 kDa verified by SEC-MALS.
Immobilized Human IFNAR2, His Tag (Cat. No. IF2-H5224) at 5 μg/mL (100 μL/well) can bind Human IFN-alpha 2b (K46R), Fc Tag (Cat. No. IFB-H5253) with a linear range of 2.4-10 ng/mL (QC tested).
Human IFN-alpha 2b (K46R), Fc Tag (Cat. No. IFB-H5253) immobilized on CM5 Chip can bind Human IFNAR2, His Tag (Cat. No. IF2-H5224) with an affinity constant of 0.257 μM as determined in SPR assay (Biacore T200) (Routinely tested).
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