IL-4 Protein, Canine

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The IL-4 protein actively participates in the B cell activation process, acting as a costimulator for DNA synthesis. It induces the expression of class II MHC molecules on resting B cells, enhances IgE and IgG1 secretion and cell surface expression, and modulates CD23 expression on lymphocytes and monocytes. IL-4 Protein, Canine is the recombinant canine-derived IL-4 protein, expressed by E. coli , with no tag.

For research use only. We do not sell to patients.
  • Species: Canine
  • Source: E. coli
  • 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.
  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • Help & FAQs

Biological Activity

Description

The IL-4 protein actively participates in the B cell activation process, acting as a costimulator for DNA synthesis. It induces the expression of class II MHC molecules on resting B cells, enhances IgE and IgG1 secretion and cell surface expression, and modulates CD23 expression on lymphocytes and monocytes. IL-4 Protein, Canine is the recombinant canine-derived IL-4 protein, expressed by E. coli , with no tag.

Background

IL-4 protein actively participates in multiple B-cell activation processes and various cell types, serving as a costimulator of DNA synthesis. It induces the expression of class II MHC molecules on resting B-cells, enhances the secretion and cell surface expression of IgE and IgG1, and regulates the expression of the low affinity Fc receptor for IgE (CD23) on lymphocytes and monocytes. Furthermore, IL-4 positively regulates IL31RA expression in macrophages and stimulates autophagy in dendritic cells by interfering with mTORC1 signaling and inducing RUFY4.

Verified Bioactivity

Measured in a cell proliferation assay using TF-1 human erythroleukemic cells and the ED50 is typically 5-30 ng/mL.

Technical Parameters

  • Species Canine
  • Source E. coli
  • Tag Tag Free
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • IL-4 (H25-H132)
      Accession # O77762
    • C-term
  • Protein Length

    Full Length of Mature Protein

  • 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

    HNFNITIKEIIKMLNILTARNDSCMELTVKDVFTAPKNTSDKEIFCRAATVLRQIYTHNCSNRYLRGLYRNLSSMANKTCSMNEIKKSTLKDFLERLKVIMQKKYYRH

  • Predicted Molecular Mass

    13 kDa

  • Molecular Weight

    Approximately 12-14 kDa, based on SDS-PAGE under reducing conditions.

  • Purity

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

Product Properties

Appearance

Lyophilized powder.

Formulation

1.Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4, 5% trehalose, 5% mannitol and 0.01% Tween 80.
2.Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4, 8% trehalose.
Please refer to the lot-specific COA for specific buffer information.

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.

Calculators

Reconstitution Calculator

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

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

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

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