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IL-21 Recombinant Protein
Description
Research Area
Images & Validation
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Key Properties
−| Source | E. coli |
|---|---|
| Biological Activity | Assay #1: Measured by its ability to induce STAT3 signaling in U937 Stat3-Luc reporter cells. Assay #2: Determined by its ability to stimulate the proliferation of human ANBL-6 cells. The expected ED50 is ≤ 1.0 ng/ml, corresponding to a specific activity of ≥ 1 x 106 units/mg |
| Target | Il21 |
| Protein Sequence | MHKSSPQGPD RLLIRLRHLI DIVEQLKIYE NDLDPELLSA PQDVKGHCEH AAFACFQKAK LKPSNPGNNK TFIIDLVAQL RRRLPARRGG KKQKHIAKCP SCDSYEKRTP KEFLERLKWL LQKMIHQHLS |
| Purity | Greater than 98% by SDS-PAGE gel and HPLC analyses.Endotoxin level is less than 0.1 ng per μg (1EU/μg). |
Storage & Handling
−| Storage | The lyophilized IL-21 recombinant protein is stable for at least 2 years from date of receipt at -20°C. Reconstituted IL-21 is stable for at least 3 months when stored in working aliquots with a carrier protein at -20°C. As with any protein, exposing IL-21 recombinant protein to repeated freeze / thaw cycles is not recommended. When working with proteins care should be taken to keep recombinant protein at a cool and stable temperature. |
|---|---|
| Form/Appearance | Lyophilized |
| Expiration Date | 6 months from date of receipt. |
| Disclaimer | For research use only |
Alternative Names
−Similar Products
−Recombinant Human IL-21R Protein [orb2994695]
Unconjugated
SDS-PAGE: Greater than 95% as determined by reducing SDS-PAGE.
Predicted: 26 KDa. Observed: 40-55 KDa, reducing conditions
10 μg, 50 μg, 500 μg, 1 mgRecombinant Mouse IL-21R Protein [orb2994152]
Unconjugated
SDS-PAGE: Greater than 95% as determined by reducing SDS-PAGE.
Predicted: 25.7 KDa. Observed: 34-38 KDa, reducing conditions
10 μg, 50 μg, 500 μg, 1 mg

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Quick Database Links
UniProt Details
−NCBI Reference Sequences
−| Protein | NP_068554.1 |
|---|
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Protocol Information
IL-21 Recombinant Protein (orb1230688)
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