Human CellExp™ IL-4, Human Recombinant

IL4 is a pleiotropic cytokine and a potent lymphoid cell growth factor that stimulates the growth and survivability of certain B cells and T cells. It is produced by activated T cells and 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. Two alternatively spliced transcript variants of this gene encoding distinct isoforms have been reported.

N/A

14 and 19 kDa, monomer

Human Cellexp Human Recombinant IL-4

BCGF, BCDF, B cell stimulating factor, BSF-1, Lymphocyte stimulatory factor 1, IL-4, MGC79402, Binetrakin, Pitrakinra.

3565

IL4

Human

P05112

Yes

Human 293 cell expressed

≥95%

SDS-PAGE, N/A

< 1.0 EU per 1 μg of protein

N/A

ED₅₀ is typically 0.1 to 0.5 ng/mL. The specific activity was determined by the dose-dependent simulation of the proliferation of human TF-1 cells (human erythroleukemic indicator cell line).

0.1 to 0.5 ng/ml

N/A

N/A

-80°C

gel pack

Lyophilized

Lyophilized from a solution of 20 mM Tris-HCl, pH 7.4, with 300 mM NaCl.

Reconstitute in sterile PBS containing 0.1% endotoxin-free recombinant human serum albumin.

N/A

Centrifuge the vial prior to opening.

For Research Use Only! Not to be used in humans

Human proteins, cDNA and human recombinants are used in human reactive ELISA kits and to produce anti-human mono and polyclonal antibodies. Modern humans (Homo sapiens, primarily ssp. Homo sapiens sapiens). Depending on the epitopes used human ELISA kits can be cross reactive to many other species. Mainly analyzed are human serum, plasma, urine, saliva, human cell culture supernatants and biological samples.

Recombinants or rec. proteins

recombinants