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Sino Biological™ IL21R Recombinant Human Protein, His Tag DFS Item

This recombinant protein was expressed from a DNA sequence encoding the human IL21R (Q9HBE5-1) extracellular domain (Met 1-Pro 236), with a polyhistidine tag at the C-terminus

Manufacturer: life technologies  LS11483H08H50

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For Research Use Only. Not for use in diagnostic procedures.

Catalog No. 11483H08H50


Description & Specifications


For Use With (Application) Proteins, Expression, Isolation & Analysis; Enzyme & Protein Activity Assays; Protein Assay Controls, Reference Standards & Accessories
Format Lyophilized
Gene ID (Entrez) 50615
Molecular Weight 26.5kDa
Purity ≥90% by SDS-PAGE
Quantity 50μg
Storage Requirements Store at -20° to -70°C. Store aliquots under sterile conditions at -20°C. Avoid repeated freeze-thaw cycles. Expires one year from date of receipt when stored as instructed.
Structural Form Truncated/Recombinant
Protein Subtype Interleukins|Cytokine Receptors
Endotoxin Concentration <1 EU/μg
Gene Alias UNQ3121/PRO10273, mgC10967, NILR
Common Name Interleukin 21 receptor
Gene Symbol IL21R
Protein Tag His Tag
Validated Application Assay Standard
Protein Family Cytokines & Receptors
Expression System Mammalian

Interleukin 21 receptor (IL21R), recombinant human protein is supplied as a lyophilized powder. It is suitable for use in analysis of protein structure. In general, recombinant proteins can also be used as an immunogen, as a protein standard, or in cell biology research applications.

  • Activity: 1. Measured by its ability to bind human IL21 in a functional ELISA; 2. Measured by its ability to inhibit IL21-induced Interferon gamma secretion by human natural killer lymphoma NK-92 cells, the ED50 for this effect is typically 1-5ng/mL in the presence of 100ng/mLof recombinant human IL21; 3. Measured by its ability to inhibit IL21 induced Interferon gamma secretion by human natural killer lymphoma NK-92 cells, the ED50 for this effect is typically 50-200pg/mL in the presence of 10ng/mL of recombinant human IL21
  • Formulation: Lyophilized in PBS, pH 7.4, 5% Mannitol, 5% Trehalose, and 0.02% Tween 80
  • Reconstitution: Dissolve the protein in sterile double distilled water to a concentration of 0.2mg/mL or lower; aliquot and use as soon as possible

Shipping Condition: Room Temperature. This protein is manufactured by Sino Biological Inc.