Product Type > Proteins

Recombinant Mouse IL-4 Protein (RP01161)



Product name Recombinant Mouse IL-4 Protein
Catalog No. RP01161
Description Recombinant Mouse IL-4 Protein is produced by HEK293 cells expression system. The target protein is expressed with sequence (His23-Ser140) of mouse IL-4 (Accession #NP_067258.1) fused with a 6×His tag at the C-terminus.
Bio-Activity 1.Measured in a cell proliferation assay using MC/9 2 mouse mast cells. The ED50 for this effect is 2.8-11.3 pg/mL, corresponding to a specific activity of 8.85×107~3.57×108 units/mg.
2.Measured in a cell proliferation assay using HT-2 mouse T cells. The ED50 for this effect is 0.21-0.85 ng/mL, corresponding to a specific activity of 1.18×106~4.76×106 units/mg.
Purity > 95% by SDS-PAGE.
Endotoxin < 0.1 EU/μg of the protein by LAL method.
Formulation Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.Contact us for customized product form or formulation.
Species Mouse
Interleukin-4, also known as IL4, is a secreted protein that belongs to the IL-4 / IL-13 family. Interleukin-4 / IL4 has many biological roles, including the stimulation of activated B-cell and T-cell proliferation. It enhances both secretion and cell surface expression of IgE and IgG1. Interleukin-4 / IL4 also regulates the expression of the low-affinity Fc receptor for IgE (CD23) on both lymphocytes and monocytes. Interleukin-4 is essential for the switching of B cells to IgE antibody production and the maturation of T helper (Th) cells toward the Th2 phenotype.
Synonym Il-4; BSF-1; IL4
Expressed Host HEK293 cells
Tag C-His
Swiss-Prot P07750
Gene ID 16189
Storage Store the lyophilized protein at -20°C to -80 °C for long term.
After reconstitution, the protein solution is stable at -20 °C for 3 months, at 2-8 °C for up to 1 week.
Reconstitution Centrifuge the vial before opening. Reconstitute to a concentration of 0.1-0.5 mg/mL in sterile distilled water. Avoid votex or vigorously pipetting the protein. For long term storage, it is recommended to add a carrier protein or stablizer (e.g. 0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose), and aliquot the reconstituted protein solution to minimize free-thaw cycles.

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