Human IL-2RB&IL-2RG Heterodimer Protein, Fc Tag&Fc Tag is produced by co-expression of IL-2RB and IL-2RG, has a calculated MW of 51.1 kDa (IL-2RB) and 53.6 kDa (IL-2RG). Subunit IL-2RB is fused with a human IgG1 Fc tag at the C-terminus and subunit IL-2RG is fused with a human IgG1 Fc tag at the C-terminus. The reducing (R) protein migrates as 65-80 kDa and 90-100 kDa respectively 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. Normally Trehalose is added as protectant before lyophilization.
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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 IL-2RB&IL-2RG Heterodimer Protein, Fc Tag&Fc Tag (MALS verified) 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 Human IL-2RB&IL-2RG Heterodimer Protein, Fc Tag&Fc Tag (MALS verified)(Cat. No. ILG-H5254) was more than 90% and the molecular weight of this protein is around 145-165 kDa verified by SEC-MALS.
Immobilized Human IL-2, Tag Free (Cat. No. IL2-H4113) at 5 μg/mL (100 μL/well) can bind Human IL-2RB&IL-2RG Heterodimer Protein, Fc Tag&Fc Tag (MALS verified) (Cat. No. ILG-H5254) with a linear range of 5-78 ng/mL (QC tested).
Human IL-2RB&IL-2RG Heterodimer Protein, Fc Tag&Fc Tag (Cat. No. ILG-H5254) captured on CM5 chip via anti-human IgG Fc antibody can bind IL-2, Tag Free (Cat. No. IL2-H4113) with an affinity constant of 0.123 nM as determined in a SPR assay (Biacore T200) (Routinely tested).
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