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IL-4, Recombinant, Human, aa25-153 (Growth Factors-Interleukin, IL-4 GMP, BCDF, BSF1)

Cat no: 145707

IL-4, Recombinant, Human, aa25-153 (Growth Factors-Interleukin, IL-4 GMP, BCDF, BSF1)

Interleukin 4 (IL-4) is a pleiotropic cytokine produced by activated T cells, mast cells, and basophils. It was initially identified as a B cell differentiation factor (BCDF), as well as a B cell stimulatory factor (BSF1). IL-4 has since been shown to have multiple biological effects on hematopoietic and non-hematopoietic cells, including B and T cells, monocytes, macrophages, mast cells, myeloid and erythroid progenitors, fibroblasts, and endothelial cells. Rat, mouse and human IL-4 are species-specific in their activities.\n\nSource:\nRecombinant protein corresponding to aa25-153 from human IL-4 GMP, expressed in E. coli.\n\nMolecular Weight:\n~14kD\n\nEndotoxin:\n<0.10EU/1ug (LAL method)\n\nStorage and Stability:\nLyophilized powder may be stored at -20 degrees C. Stable for 12 months at -20 degrees C. Reconstitute in sterile ddH2O or PBS. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Reconstituted product is stable for 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

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SPECIFICATIONS

Catalog Number

145707

Size

10ug

Form

Supplied as a lyophilized powder in PBS. BSA free. Reconstitute in 100-200ug/ml PBS.

Purity

~97% (SDS

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