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Limited Edition Golden Llama is here! Check out how you can get one. 
Limited Edition Golden Llama is here! Check out how you can get one.
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This protein carries a polyhistidine tag at the C-terminus
The protein has a calculated MW of 25.4 kDa. The protein migrates as 35-45 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
>90% as determined by SDS-PAGE.
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 IL-2 R beta Protein, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90%.
Human IL-2 R beta Protein, His Tag (Cat. No. CD2-H5221) captured on CM5 chip via anti-His antibody, can bind Human IL-2, premium grade (Cat. No. IL2-H5215) with an affinity constant of 1.62 μM as determined in a SPR assay (Biacore T200) (QC tested).
Human IL-2 R beta Protein, His Tag (Cat. No. CD2-H5221) captured on CM5 chip via anti-His antibody, can bind Human IL-15, premium grade (Cat. No. IL5-H4117) with an affinity constant of 21.7 nM as determined in a SPR assay (Biacore T200) (Routinely tested).
Loaded Human IL-2 R beta Protein, His Tag (Cat. No. CD2-H5221) on HIS1K Biosensor, can bind Human IL-2, Tag Free with an affinity constant of 0.46 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Human IL-2 R beta Protein, His Tag (Cat. No. CD2-H5221) inhibits the IL-15-dependent proliferation of Mo7e cells. The EC50 for this effect is 0.38-0.45 µg/mL (Routinely tested).
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