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Recombinant Mouse IL-21 Protein

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SDS-Page: Mouse IL-21 Protein [NBP2-35121]

Product Details

Summary
Reactivity MuSpecies Glossary
Applications PAGE, Bioactivity
Format
Carrier-Free
Concentration
LYOPH

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Recombinant Mouse IL-21 Protein Summary

Description
A single non-glycosylated polypeptide chain containing 129 amino acids corresponding to IL-21 Source: E. coli

Uniprot ID: Q9ES17

Amino Acid Sequence: HKSSPQGPDR LLIRLRHLID IVEQLKIYEN DLDPELLSAP QDVKGHCEHA AFACFQKAKL KPSNPGNNKT FIIDLVAQLR RRLPARRGGK KQKHIAKCPS CDSYEKRTPK EFLERLKWLL QKMIHQHLS

Details of Functionality
IL-21 protein is fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human N1186 T cells is less than 25 ng/ml, corresponding to a specific activity of > 4.0 x 10^4 IU/mg
Source
E. coli
Protein/Peptide Type
Recombinant Protein
Gene
IL21
Purity
> 98 % pure by SDS-PAGE and HPLC
Endotoxin Note
Less than 0.1 EU/ug of IL-21 as determined by LAL method.

Applications/Dilutions

Dilutions
  • Bioactivity
  • SDS-Page
Theoretical MW
15 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

Storage
Store at -20 to -70C as supplied. After reconstitution, store at 2 to 8C for 1 month and at -20 to -70C for long term storage. Avoid repeated freeze-thaw cycles.
Buffer
Lyophilized from a 0.2 um filtered concentrated solution in 2 x PBS, pH 7.4.
Preservative
No Preservative
Concentration
LYOPH
Purity
> 98 % pure by SDS-PAGE and HPLC
Reconstitution Instructions
Recommended to centrifuge prior to opening. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0mg/mL.

Alternate Names for Recombinant Mouse IL-21 Protein

  • CVID11
  • IL21
  • IL-21
  • IL-21Za11interleukin-21
  • interleukin 21
  • interleukin-21 isoform
  • Za11

Background

IL-21 is encoded by IL-21 gene located on Chr. 4 in mouse. It is a pleiotropic cytokine produced by CD4+ T cells in response to antigenic stimulation and can regulating immune system cells, for instance cytotoxin T cells and natural killer cells. Additionally, it can induce target cells division or proliferation. IL-21 elicits its effect through binding to IL-21R, which also contains the gamma chain found in other cytokine receptors such as IL-2, IL-4, IL-7, IL-9 and IL-15. IL-21/IL-21R interaction triggers a cascade of events which includes activation of the tyrosine kinases JAK1 and JAK3, followed by activation of the transcription factors STAT1 and STAT3. IL-21 shows having much relation with clinical illnesses, including cancer immunotherapy, viral infections and allergies. The murine IL-21 precursor contains a predicted 17 amino acid (a.a.) signal sequence and a 129 a.a. mature chain. Mature murine IL-21 shares 66 %, 59 %, 58 % and 88 % a.a. sequence identity with mature canine, human, rabbit and rat IL-21, respectively.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are guaranteed for 3 months from date of receipt.

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Bioinformatics

Gene Symbol IL21
Uniprot