Name: Human Interleukin-4
Price: Inquiry

- Overview
  - Predicted MW: Monomer, 15.1 kDa (130 aa). Interleukin 4 (IL-4) is an immunomodulatory cytokine that functions to induce naïve helper T cells to differentiate into type 2 T helper (Th2) cells. Th2 cells subsequently produce more IL-4 in a positive feedback loop. IL-4 also promotes immunoglobulin IgG to IgE isotype switching on B cells. IL-4 binds the IL-4Ralpha receptor to activate STAT6 signaling.
    
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- Properties
  - Protein Name
    
    B-cell stimulatory factor 1, Binetrakin, Lymphocyte stimulatory factor 1, Pitrakinra
    
    Source
    
    Genetically modified E.coli
    
    Type
    
    Recombinant Proteins
    
    Purification
    
    Reducing and Non-Reducing SDS PAGE at >= 95%
    
    Formulation
    
    Lyophilized from a sterile (0.2 micron) filtered aqueous solution containing 0.1% Trifluoroacetic Acid (TFA)
    Sterile water at 0.1 mg/mL
    
    Storage
    
    Store at -20°C
    
    Endotoxin
    
    Less than 0.1 ng/µg (1 IEU/µg) as determined by LAL test.
    
    Activity
    
    Biological Activity was determined by TF-1 cell proliferationat = 4.0 x 10^6 units/mg . Centrifuge vial before opening, Suspend the product by gently pipetting the above recommended solution down the sides of the vial. DO NOT VORTEX. Allow several minutes for complete reconstitution. For prolonged storage, dilute to working aliquots in a 0.1% BSA solution, store at -80°C and avoid repeat freeze thaws. Upon reconstitution, a small amount of visible precipitate can be expected. A 10% overfill has been added to the total material vialed to compensate for this loss.
    
    More Information
    
    UniProt
    
    P05112
    
    Gene ID
    
    3565
    
    * For Research Use Only. Not for use in diagnostic/therapeutics procedures.

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