1. Recombinant Proteins
  2. Cytokines and Growth Factors
  3. Interleukin & Receptors
  4. IL-4
  5. IL-4 Protein, Human (CHO)

IL-4 Protein, Human (CHO)

Cat. No.: HY-P7042
Handling Instructions

IL-4 Protein, Human (CHO) is a CHO cell derived, potent lymphoid cell growth factor, which stimulates the growth and survivability of B-cells and T-cells.

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

Protein Expression Service

Size Price Stock Quantity
10 μg $140 In-stock
Estimated Time of Arrival: December 31
50 μg $440 In-stock
Estimated Time of Arrival: December 31
100 μg $640 Get quote
250 μg   Get quote  

* Please select Quantity before adding items.

Top Publications Citing Use of Products
  • Biological Activity

  • Technical Parameters

  • Properties

  • Documentation

  • References

Description

IL-4 Protein, Human (CHO) is a CHO cell derived, potent lymphoid cell growth factor, which stimulates the growth and survivability of B-cells and T-cells.

Background

Interleukin-4 (IL-4) is a cytokine that plays an important role in regulating inflammation and immune responses. It induces the differentiation of naïve helper T cells to Th2 cells. This cytokine binds the IL-4 receptor that also binds another cytokine interleukin 13 (IL-13), which may explain the overlapping functions of IL-4 and IL-13. IL-4, originally designated as B-cell growth factor-1 (BSFl), is described in the supernatant of activated EL-4 thymoma cells as a factor that can co-stimulate B-cells activated with submitogenic concentrations of anti-IgM[1].

Biological Activity
The ED50 is <0.25 ng/mL as measured by TF-1 human erythroleukemic cells, corresponding to a specific activity of >4 × 106 units/mg.
Species

Human

Source

CHO

Accession

P05112 (H25-S153)

Gene ID
Synonyms
rHuIL-4; BSF-1; Binetrakin; Lymphocyte stimulatory factor 1; Pitrakinra
AA Sequence

HKCDITLQEIIKTLNSLTEQKTLCTELTVTDIFAASKNTTEKETFCRAATVLRQFYSHHEKDTRCLGATAQQFHRHKQLIRFLKRLDRNLWGLAGLNSCPVKEANQSTLENFLERLKTIMREKYSKCSS

Molecular Weight

Approximately 15 kDa

Appearance

Lyophilized powder.

Formulation

Lyophilized after extensive dialysis against PBS.

Endotoxin Level

<0.2 EU/μg, determined by LAL method.

Reconstitution

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.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation
References

IL-4 Protein, Human (CHO) Related Classifications

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Active 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 active calculator equation

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

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

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Product Name:
IL-4 Protein, Human (CHO)
Cat. No.:
HY-P7042
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