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GMP IL-4 Protein, Human (HEK293)

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Based on 1 publication(s) in Google Scholar

GMP IL-4 Protein, Human (HEK293) is a recombinant GMP-grade protein produced by HEK293 cells with C-His tag. IL-4 is an anti-inflammatory cytokine acting as a pleiotropic regulator of numerous immune and inflammatory processes.

For research use only. We do not sell to patients.
  • Species: Human
  • Source: HEK293
  • Storage:
    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.
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To place orders, for customer services and technical support, please contact: MedChemExpress USA

Tel: 609-228-6898 E-mail: [email protected] [email protected]

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To place orders, for customer services and technical support, please contact:

609-228-6898
[email protected] [email protected]
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  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • References
  • Help & FAQs
Top Publications Citing

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Biological Activity

Description

GMP IL-4 Protein, Human (HEK293) is a recombinant GMP-grade protein produced by HEK293 cells with C-His tag. IL-4 is an anti-inflammatory cytokine acting as a pleiotropic regulator of numerous immune and inflammatory processes.

Background

Interleukin-4 (IL-4), also known as B cell-stimulatory factor-1, is a cytokine that plays an important role in regulating inflammation and immune responses. It is typically secreted by T helper 2 lymphocytes, mast cells, eosinophils, and basophils and plays a protective role in neurological disorders (e.g., multiple sclerosis, spinal cord injury). IL-4 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 application at injured nerves in mice shifted F4/80+ macrophages from the proinflammatory M1 to the antiinflammatory M2 phenotype, which synthesized opioid peptides (Met-enkephalin, β-endorphin, and dynorphin A 1-17)[1][2].

Verified Bioactivity

The specific activity is >1×107 U/mg.

Technical Parameters

  • Species Human
  • Source HEK293
  • Tag Tag Free
  • Accession

    P05112-1 (H25-S153)

  • Gene ID
    3565  [NCBI]
  • Molecular Construction
    • N-term
    • IL-4 (H25-S153)
      Accession # P05112-1
    • C-term
  • Protein Length

    Full Length of Isoform-1

  • Synonyms

    IL4; B_cell Stimulatory Factor 1; Interleukin 4; B-Cell Stimulatory Factor 1; IL-4; B Cell Growth Factor 1; Lymphocyte Stimulatory Factor 1; Binetrakin; Interleukin-4; Pitrakinra; BCGF-1; MGC79402; BCGF1; BSF-1; BSF1

  • AA Sequence

    HKCDITLQEIIKTLNSLTEQKTLCTELTVTDIFAASKNTTEKETFCRAATVLRQFYSHHEKDTRCLGATAQQFHRHKQLIRFLKRLDRNLWGLAGLNSCPVKEANQSTLENFLERLKTIMREKYSKCSS

  • Predicted Molecular Mass

    15 kDa

  • Molecular Weight

    Approximately 18 kDa, based on SDS-PAGE under reducing conditions.

  • Glycosylation

    Yes

  • Purity

    ≥ 95%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Lyophilized powder.

Formulation

Lyophilized from a 0.22 μm filtered solution of 20 mM PB, 150 mM NaCl, pH 7.4.

Endotoxin Level

<0.1 EU/μg, determined by LAL method.

Reconstitution

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

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.

References

[1]. Le HV, et al. Isolation and characterization of multiple variants of recombinant human interleukin 4 expressed in mammalian cells. J Biol Chem. 1988 Aug 5;263(22):10817-23. [Content Brief]

[2]. Melih Ö Celik, et al. IL-4 induces M2 macrophages to produce sustained analgesia via opioids. JCI Insight. 2020 Feb 27;5(4):e133093. [Content Brief]

Calculators

Reconstitution Calculator

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

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Dilution Calculator

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

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The Specific Activity Calculator Equation
  • Specific Activity (Unit/mg)
  • Biological Activity (ED50)

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

Specific Activity (Unit/mg) Specific Activity (Unit/mg)
Unit/mg
= 106 ÷
Biological Activity (ED50) Biological Activity (ED50)
106 ÷
ng/mL
MOQ
Minimum order quantity
100 mg

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Measured by its ability to inhibit anti-CD3-induced proliferation of stimulated CTLL-2 mouse cytotoxic T cells. The ED50 this effect is 0.8023 μg/ml, corresponding to a specific activity is 1246.42 units/mg.

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