Description
Specifications
|
Synonyms |
Za11; IL-21;Interleukin-21; |
|
Source |
Biotinylated Human IL-21 Protein is expressed from E.coli with His tag and Avi tag at the N-Terminus. It contains Gln32-Ser162.[Accession | Q9HBE4-1] |
|
Molecular Weight |
The protein has a predicted MW of 18.30 kDa same as SDS-PAGE result. |
|
Endotoxin |
Less than 1EU per μg by the LAL method. |
|
Purity |
> 95% as determined by SDS-PAGE |
|
Activity |
ELISA Data: Immobilized Human IL-21R, hFc Tag at 0.5μg/ml (100μl/Well) on the plate. Dose response curve for Biotinylated Human IL-21, His Tag with the EC50 of 2.5ng/ml determined by ELISA. |
|
Formulation |
Lyophilized from 0.22 μm filtered solution in 20mM NaAc, 500mM NaCl (pH 5.5). Normally 8% trehalose is added as protectant before lyophilization. |
|
Reconstitution |
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in 20mM NaAc, 500mM NaCl (pH 5.5). |
Storage
The product should be stored at -25~-15℃ for 1 year from date of receipt.
2-7 days, 2 ~ 8 °C under sterile conditions after reconstitution.
3 -6 months, -85~-65℃ under sterile conditions after reconstitution.
Recommend to aliquot the protein into smaller quantities when first used and avoid repeated freeze-thaw cycles.
Note
1.Please operate with lab coats and disposable gloves for your safety.
2.This product is for research use only.
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The product is for research purposes only and is not intended for therapeutic or diagnostic use in humans or animals. Products and content are protected by patents, trademarks, and copyrights owned by Yeasen Biotechnology. Trademark symbols indicate the country of origin, not necessarily registration in all regions.
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