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Recombinant Human IL-4 (ELISA Std.)

Recombinant Human IL-4 (ELISA Std.)

Cat no: 571809

Supplier: BioLegend
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IL-4 is a pleiotropic cytokine that is produced by activated T cells mast cells and basophils. IL-4 elicits many different biological responses, but has two dominant functions. The first is regulating differentiation of naïve CD4+ T cell to the Th2 type. Th2 cells produce IL-4, IL-5, IL-10 and IL-13, which tend to favor a humoral immune response while suppressing a cell-mediated immune response controlled by Th1 cells. The second is regulating IgE and IgG1 production by B cells. Recombinant human IL-4 is a 14.9 kD protein containing 129 amino acids.
Catalogue number: 571809
Applications: ELISA
Size: 4 pack
Gene: 3565
Dilutions: Each lot of this protein is quality control tested by ELISA assay. For use as an ELISA standard, a standard curve comprised of doubling dilutions from 500 pg/ml to 4 pg/ml is suggested. It is recommended that the reagent be titrated for optimal performance for each application.
Storage buffer: Upon receipt, store unopened vials at 4C immediately and use within 12 months from date of receipt. Prior to use, reconstitute the lyophilized powder with 0.2 ml of PBS containing a carrier protein (e.g., 1% BSA, protease free), pH7.4. Re-cap vial, vortex. Allow the reconstituted standard to sit at room temperature for 15 minutes, vortex again to mix completely. The reconstituted standard stock solution can be aliquoted into polypropylene vials and stored at -70C for up to one month. Do not re-use diluted standards. Use a manual defrost freezer and avoid repeated freeze thaw cycles.
Regulatory status: RUO
Shipping temp: Ambient RT
Storage temp: 4 C
Alternative names: Interleukin-4, IaIF, BSF-1, HCGF, MCGF-2, MFF, TCGF-2
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