Name : IL-4, Mouse
Product Concentration :
Background :
Interleukin-4 (IL-4) is a pleiotropic cytokine regulates diverse T and B cell responses including cell proliferation, survival, and gene expression. It has important effects on the growth and differentiation of different immunologically competent cells. Interleukin-4 is produced by mast cells, T cells, and bone marrow stromal cells. IL-4 regulates the differentiation of native CD4+ T cells (Th0 cells) into helper Th2 cells, and regulates the immunoglobulin class switching to the IgG1 and IgE isotypes. IL-4 has numerous important biological functions including stimulating B-cells activation, T-cell proliferation and CD4+ T-cells differentiation to Th2 cells. It is a key regulator in hormone control and adaptive immunity. IL-4 also plays a major role in inflammation response and wound repair via activation of macrophage into M2 cells. IL-4 is stabilized by three disulphide bonds forming a compact globular protein structure. Four alpha-helix bundle with left-handed twist is dominated half of the protein structure with 2 overhand connections and fall into a 2-stranded anti-parallel beta sheet.
Biological Activity :
ED50 5.0 × 105 units/mg.
expression system :
CHO
Tag :
IL-4 (His21-Ser140)Accession # P07750
Protein Accession No. :
P07750
Synonyms :
IL4; B cell growth factor-1; BCGF-1; B cell stimulatory factor-1; BSF-1; B cell differentiation factor; BCDF; T cell growth factor-2; TCGF-2; Mast-cell growth factor-2; MCGF-2
Molecular Weight :
~15 kDa, on SDS-PAGE under reducing conditions.
Purity :
> 95% as analyzed by SDS-PAGE> 95% as analyzed by HPLC
Product Concentration :
Lyophilized after extensive dialysis against PBS.
Storage and Stability :
Upon receiving, this product remains stable for up to 6 months at lower than -70°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. For long term storage it is recommended that a carrier protein (example 0.1% BSA) be added. Avoid repeated freeze-thaw cycles.
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