IL-4 human
SIGMA/SRP3093 - Animal-component free, recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture
Synonym: B cell stimulating factor (BSF-1); BCDF; BCGF
Product Type: Chemical
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| assay | ≥98% (HPLC) |
| ≥98% (SDS-PAGE) | |
| biological source | human |
| color | off-white to yellow |
| form | lyophilized |
| impurities | <0.1 EU/μg endotoxin, tested |
| mol wt | 14.9 kDa |
| packaging | pkg of 20 μg |
| potency | ≤0.2 ng/mL ED50 |
| recombinant | expressed in E. coli |
| shipped in | wet ice |
| storage temp. | −20°C |
| technique(s) | cell culture | mammalian: suitable |
| UniProt accession no. | P05112   |
| Application: | Interleukin-4 (IL-4) has been used as a stimulant of M2 state of microglia that is associated with wound healing and debris clearance. |
| Biochem/physiol Actions: | IL-4 is a pleiotropic cytokine that regulates diverse T and B cell responses including cell proliferation, survival and gene expression. Recombinant human IL-4 is a 14.9 kDa globular protein containing 129 amino acid residues. |
| General description: | IL-4 is a pleiotropic cytokine that regulates diverse T and B cell responses including cell proliferation, survival and gene expression. Produced by mast cells, T cells and bone marrow stromal cells, IL-4 regulates the differentiation of naive CD4+ T cells into helper Th2 cells, characterized by their cytokine-secretion profile that includes secretion of IL-4, IL-5, IL-6, IL-10, and IL-13, which favor a humoral immune response. Another dominant function of IL-4 is the regulation of immunoglobulin class switching to the IgG1 and IgE isotypes. Excessive IL-4 production by Th2 cells has been associated with elevated IgE production and allergy. Recombinant human IL-4 is a 14.9 kDa globular protein containing 129 amino acid residues. |
| Other Notes: | MHKCDITLQE IIKTLNSLTE QKTLCTELTV TDIFAASKNT TEKETFCRAA TVLRQFYSHH EKDTRCLGAT AQQFHRHKQL IRFLKRLDRN LWGLAGLNSC PVKEANQSTL ENFLERLKTI MREKYSKCSS |
| Physical form: | Lyophilized with no additives. |
| Preparation Note: | Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a stabilizer (example 5% Trehalose) and store in working aliquots at -20°C to -80°C. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥98% (HPLC); ≥98% (SDS-PAGE) |
| Storage Temp. | −20°C |
| UNSPSC | 12352202 |