This protein carries no "tag"
The protein has a calculated MW of 15.4 kDa. The protein migrates as 14 kDa and 16-17 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
>95% 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, premium grade on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.
Human IL-2, premium grade (Cat. No. IL2-H5215) stimulates proliferation of CTLL-2 cells. The EC50 for this effect is 1.996 ng/mL, corresponding to a specific activity of 5 ⅹ10^6 IU/mg, which is calibrated against Interleukin-2 (Human, rDNA derived) (2nd International Standard) (NIBSC code: 86/500) (QC tested).
The activity of Human IL-2, premium grade (Cat. No.IL2-H5215) was higher than other competing products.
Human IL-2, premium grade (Cat. No. IL2-H5215) has higher bioactivity than imported competitors when activates T cell proliferation with CD3/CD28 Activation Magnetic Beads.
Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.
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