1. Recombinant Proteins
  2. Cytokines and Growth Factors CD Antigens Receptor Proteins
  3. Interleukin & Receptors B Cell CD Proteins NK Cell CD Proteins Cytokine Receptors
  4. IL-21R IL-21R
  5. IL-21R Protein, Human (HEK293, Fc)

IL-21R protein, a receptor for interleukin-21, forms a heterodimer with the common gamma subunit and associates with Janus kinase 1 (JAK1). These interactions are pivotal for transducing the cellular responses initiated by interleukin-21, regulating immune processes and inflammatory pathways. IL-21R Protein, Human (HEK293, Fc) is the recombinant human-derived IL-21R protein, expressed by HEK293 , with C-hFc labeled tag.

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

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Size Price Stock Quantity
20 μg USD 140 In-stock
50 μg USD 308 In-stock
100 μg USD 525 Get quote
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  • Biological Activity

  • Technical Parameters

  • Properties

  • Documentation

Description

IL-21R protein, a receptor for interleukin-21, forms a heterodimer with the common gamma subunit and associates with Janus kinase 1 (JAK1). These interactions are pivotal for transducing the cellular responses initiated by interleukin-21, regulating immune processes and inflammatory pathways. IL-21R Protein, Human (HEK293, Fc) is the recombinant human-derived IL-21R protein, expressed by HEK293 , with C-hFc labeled tag.

Background

The IL-21R protein serves as a receptor for interleukin-21. It forms a heterodimer with the common gamma subunit and associates with Janus kinase 1 (JAK1). Through this interaction, the receptor facilitates the signaling cascade initiated by interleukin-21, a cytokine with diverse immunoregulatory functions. The formation of the IL-21R heterodimer and its association with JAK1 are pivotal steps in transducing the cellular responses triggered by interleukin-21, contributing to the regulation of immune processes and inflammatory pathways.

Biological Activity

Measured by its binding ability in a functional ELISA. When immobilized Human IL-21 at 2 μg/mL (100μL/Well), can bind Human IL-21R with the EC50 of <62.4 ng/mL.

Species

Human

Source

HEK293

Tag

C-hFc

Accession

Q9HBE5 (C20-P236)

Gene ID
Synonyms
IL-21 receptor; IL-21R; CD360; NILR
Molecular Weight

60-70 kDa

Purity

Greater than 95% as determined by Tris-Bis PAGE.

Appearance

Lyophilized powder.

Formulation

Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4. Normally 5% trehalose is added as protectant before lyophilization.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

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

Storage & Stability

Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation

IL-21R Protein, Human (HEK293, Fc) Related Classifications

Help & FAQs
  • How should lyophilized recombinant proteins be reconstituted and stored?

    1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss. 2. Taking 10 μg as an example, first add 20 μL of reconstituted solution provided by MCE and use a pipette to gently resuspend the lyophilized protein until it is fully dissolved.. (For most proteins, the reconstitution solution we provide is sterile water. If a diluent other than water is required, it will be indicated in the product's Certificate of Analysis (COA).). 3. Add an additional 80 μL of buffer/culture medium containing carrier protein (either 0.1% BSA, 5% HSA, 10% FBS, or 5% trehalose), and then use a pipette to gently mix until uniform. The final concentration is should not be lower than 100 μg/mL. 4. Aliquot at least 20 μL per tube. 5. After aliquoting, store it frozen at a temperature ranging from -20ºC to -80ºC, and it can be preserved for 3 to 6 months.

  • How should solution-form recombinant proteins be stored?

    1. The product can be stored in its original form and diluted as needed upon use. 2. Alternatively, dilute with a buffer/culture medium containing a carrier protein (either 0.1% BSA, 5% HSA, 10% FBS, or 5% alginate), mix well by pipetting, and ensure that

  • Why is it necessary to add carrier proteins?

    Carrier proteins are commonly added to enhance the stability of recombinant proteins, preventing them from adhering to the walls of the container during freezing or thawing processes. Plastic tubes have a certain adsorptive capacity for proteins, which may lead to difficulty in separating the protein from the tube walls, resulting in a decrease in the actual concentration of the protein in the solution and thus affecting its activity. To minimize such losses, it is recommended to add a commonly used carrier protein solution prior to the long-term storage of recombinant protein products.

  • Carrier protein types and options?

    In cases where the carrier protein is not expected to influence the experimental outcomes, an appropriate carrier protein, such as 0.1% BSA (Bovine Serum Albumin), 5% HSA (Human Serum Albumin), 10% FBS (Fetal Bovine Serum), or 5% trehalose, can be incorpo

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

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

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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Inquiry Information

Product Name:
IL-21R Protein, Human (HEK293, Fc)
Cat. No.:
HY-P77714
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