1. Recombinant Proteins
  2. IL-21 Protein, Mouse (129a.a)

IL-21 Protein, Mouse (129a.a)

Cat. No.: HY-P7078
Handling Instructions

IL-21 Protein, Mouse (129a.a) is a regulatory cytokine thought to play a role in the transition between innate and adaptive immunity.

For research use only. We do not sell to patients.

Protein Expression Service

Recombinant Proteins-MedChemExpress
Size Price Stock Quantity
10 μg $190 In-stock
Estimated Time of Arrival: December 31
50 μg $620 In-stock
Estimated Time of Arrival: December 31
100 μg   Get quote  
250 μg   Get quote  

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  • Technical Parameters

  • Properties

  • Documentation

rMuIL-21; Za11; IL21



E. coli


Q9ES17 (H18-S146)

Gene ID


Molecular Weight

Approximately 15.1 kDa

AA Sequence


Biological Activity
The ED50 is <1 ng/mL as measured by human ANBL-6 cells, corresponding to a specific activity of >1.0 × 106 units/mg.

Lyophilized powder.


Lyophilized after extensive dialysis against PBS.

Endotoxin Level

<0.2 EU/μg, determined by LAL method.


It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O or PBS.

Storage & Stability

Stored at -20°C. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer. It is recommended to freeze aliquots at -20°C or -80°C for extended storage.


Room temperature in continental US; may vary elsewhere.


Interleukin 21 (IL-21) is a novel type I cytokine that is significantly homologous to IL-2, IL-4 and IL-15. Its receptor complex contains gammac chain which is also a component of receptors for IL-2, IL-4, IL-7, IL-9 and IL-15, so there may be overlapping or relevancies in their biological functions. IL-21 is capable of co-stimulating mature T cells, B cells, NK cells, and of stimulating CD16 expression on the surface of NK cells to induce ADCC in innate immune response. It can also strengthen the anti-tumor effect of the cellular immunity, especially via enhancing the activities of NK and antigen specific CTL cells. Thus, IL-21 is a potential useful therapeutic molecule for immunotherapy of malignancies, by eliciting innate and adaptive anti-tumor responses in tumor-bearing hosts[1]

  • Molarity Calculator

  • Dilution Calculator

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass   Concentration   Volume   Molecular Weight *
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The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

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IL-21 Protein, Mouse (129a.a)
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