IL-4 Porcine
目录号 : GP20505Interleukin-4 Porcine Recombinant
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| Purity | Greater than 95.0% as determined by SDS-PAGE. | Source | Escherichia Coli. |
| Phycical Appearance | Sterile Filtered White lyophilized (freeze-dried) powder. | Shipping Condition | Shipped at Room temp. |
| Synonyms | BCGF; BCDF; B cell stimulating factor; BSF-1; Lymphocyte stimulatory factor 1; IL-4; MGC79402; Binetrakin; Pitrakinra. | ||
| Amino Acid Sequence | MHKCDITLQE IIKTLNILTA RKNSCMELPV TDVFAAPENT TEKETFCRAS TVLRHIYRHH TCMKSLLSGL DRNLSSMANM TCSVHEAKKS TLKDFLERLK TIMKEKYSKC. | ||
| Solubility | It is recommended to reconstitute the lyophilized IL-4 in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions. | ||
| Stability | Lyophilized IL-4 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C . Upon reconstitution IL-4 should be stored at 4°C between 2-7 days and for future use below -18°C .Please prevent freeze-thaw cycles. | ||
| Biological Activity | The ED50, as determined by TF-1 cell proliferation is <2ng/ml corresponding to a specific activity which is ≥ 5.0 x 10^5 units/mg. | ||
| Formulation | The protein was lyophilized from a sterile (0.2µm) filtered solution containing 10 mM sodium phosphate, pH 7.5. | ||
IL4 is a pleiotropic cytokine produced by activated T cells. IL4 is a ligand for interleukin 4 receptor. The interleukin 4 receptor also binds to IL13, which contributes to various overlapping roles of this cytokine and IL13. STAT6, a signal transducer and activator of transcription plays a main role in mediating the immune regulatory signal of this cytokine. IL4, IL3, IL5, IL13, and CSF2 form a cytokine gene cluster on chromosome 5q, with this gene particularly close to IL13. IL4, IL13 and IL5 are regulated co-ordinately by several long-range regulatory elements in an over 120 kilobase range on the chromosome.
The ED50, as determined by TF-1 cell proliferation is <2ng/ml corresponding to a specific activity which is ≥ 5.0 x 10^5 units/mg.
Lyophilized IL-4 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C . Upon reconstitution IL-4 should be stored at 4°C between 2-7 days and for future use below -18°C .Please prevent freeze-thaw cycles.