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This protein carries no "tag".
The protein has a calculated MW of 15.5 kDa. The protein migrates as 16 kDa±3 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
>95% as determined by SDS-PAGE.
>95% as determined by SEC-HPLC.
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-21, premium grade on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).
The purity of Human IL-21, premium grade (Cat. No. IL1-H5213) was greater than 95% as determined by SEC-HPLC.
Human IL-21, premium grade (Cat. No. IL1-H5213) stimulates secretion of IFN-γ by NK-92 human natural killer lymphoma cells stimulated with 10 ng/mL Human IL-15, premium grade (Cat. No. IL5-H4117). The specific activity of Human IL-21, premium grade (Cat. No. IL1-H5213) is > 1.00×10^5 U/mg (QC tested).
The Cell based assay shows that Human IL-21 Protein, premium grade (Cat. No. IL1-H5213) is stable at 37°C for 48 hours.
The Cell based assay shows that Human IL-21 Protein, premium grade (Cat. No. IL1-H5213) is stable after freezing and thawing 3 times.
Price(EUR) : €200.00
Price(EUR) : €450.00
Price(EUR) : €3310.00
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