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Catalog Number | orb594805 |
---|---|
Category | Proteins |
Description | Recombinant Human Interleukin-4(IL4) (Active) |
Tag | C-terminal 6xHis-tagged |
Form/Appearance | Lyophilized powder |
Purity | Greater than 95% as determined by SDS-PAGE. |
MW | 16 kDa |
UniProt ID | P05112 |
Protein Sequence | HKCDITLQEIIKTLNSLTEQKTLCTELTVTDIFAASKNTTEKETFCRAATVLRQFYSHHEKDTRCLGATAQQFHRHKQLIRFLKRLDRNLWGLAGLNSCPVKEANQSTLENFLERLKTIMREKYSKCSS |
Protein Length | Full Length of Mature Protein |
Source | Mammalian cell |
Biological Origin | Homo sapiens (Human) |
Biological Activity | The ED50 as determined in a cell proliferation assay using TF‑1 human erythroleukemic cells is less than 0.2 ng/ml. |
Expression Region | 25-153aa |
Endotoxins | Less than 1.0 EU/µg as determined by LAL method. |
Storage | The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20℃/-80℃. The shelf life of lyophilized form is 12 months at -20℃/-80℃. |
Buffer/Preservatives | Lyophilized from a 0.2 μm filtered 1xPBS, pH 7.4 |
Alternative names | Interleukin-4; IL-4; B-Cell Stimulatory Factor 1; Read more... |
Background | Interleukin-4 (IL-4) is a pleiotropic cytokine that regulates diverse T and B cell responses including cell proliferation, survival and gene expression. IL-4 is 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 allergic response. |
Note | For research use only |
Application notes | Full Length of Mature Protein |
Expiration Date | 6 months from date of receipt. |
(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
> 98% as determined by SDS-PAGE and HPLC. | |
15.0 kDa | |
E.Coli |
Unconjugated | |
90% | |
15.0 kDa | |
Human IL-4, premium grade (orb257598) is expressed from human 293 cells (HEK293). It contains AA His 25 - Ser 153 (Accession # P05112-1). |
Greater than 95% as determined by SDS-PAGE. | |
15.1 kDa | |
E.coli |
Greater than 95% as determined by SDS-PAGE. | |
14.97 kDa | |
Mammalian cell |
Unconjugated | |
90% | |
16.9 kDa | |
Human IL-4, His Tag (orb1149283) is expressed from human 293 cells (HEK293). It contains AA His 25 - Ser 153 (Accession # P05112-1). |
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