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|Tested species reactivity||Not Applicable|
|Host / Isotype||E.coli|
|Storage Conditions||-20° C, Avoid Freeze/Thaw Cycles|
|Tested Applications||Dilution *|
|Control (Ctrl)||Assay Dependent|
|ELISA (ELISA)||Assay Dependent|
|Immunoprecipitation (IP)||Assay Dependent|
|Western Blot (WB)||Assay Dependent|
* Suggested working dilutions are given as a guide only. It is recommended that the user titrate the product for use in their own experiment using appropriate negative and positive controls.
RRIL410 contains 121 amino acid residues. Endotoxin level is <1 EU/ug.
Purity: >98% pure by SDS-PAGE analyses.
Activity: The ED50 is <1.5 ng/ml, as determined in a stimulation of proliferation of rat spleen cells, corresponding to a specific activity of 6.6 x 10^6 units/mg.
Use: Rat IL-4 exerts activity in the range of 0.1 to 10 ng/ml for most in vitro applications.
Reconstitution and Dilution: Reconstitute in distilled water to a concentration of 1 mg/ml. After reconstitution, dilute cytokine in a neutral buffer containing carrier protein such as 5-10% FBS or 1-4% high purity BSA (fatty acid free fraction V).
Lyophilized product is stable until expiration if stored desiccated below 0°C. Cytokines diluted as indicated above should be divided into aliquots and stored at -70°C. Recombinant proteins should be stored at concentrations >500 ng/ml to reduce loss of activity.
The protein encoded by this gene is a pleiotropic cytokine produced by activated T cells. This cytokine is a ligand for interleukin 4 receptor. The interleukin 4 receptor also binds to IL13, which may contribute to many overlapping functions of this cytokine and IL13. STAT6, a signal transducer and activator of transcription, has been shown to play a central role in mediating the immune regulatory signal of this cytokine. This gene, IL3, IL5, IL13, and CSF2 form a cytokine gene cluster on chromosome 5q, with this gene particularly close to IL13. This gene, IL13 and IL5 are found to be regulated coordinately by several long-range regulatory elements in an over 120 kilobase range on the chromosome. Two alternatively spliced transcript variants of this gene encoding distinct isoforms have been reported.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
B cell growth factor 1; B-cell growth factor 1; B-cell IGG differentiation factor; B-cell stimulatory factor 1; B_cell stimulatory factor 1; binetrakin; BSF-1; IL-4; Interleukin-4; Lymphocyte stimulatory factor 1; pitrakinra
Il-4; Il4; Il4e12