SRP4137
IL-4 human
recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC)
Synonym(s):
B cell stimulating factor, BCDF, BCGF, BSF-1, IL-4, Lymphocyte stimulatory factor 1
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General description
The gene IL-4 (interleukin 4) is mapped to human chromosome 5q31.1. Human IL-4 is a 15kDa globular protein containing 130 amino acid residues. It is a cytokine which is mainly secreted by activated Th2 (T helper) cells.
Application
IL-4 (interleukin 4) has been used to polarize the human monocytic leukemia (THP-1) cells to M2-like phenotype.
In inflamed porcine endometrium, IL-4 (interleukin 4)-human has been used to study effects of IL-4 on the leukotriene B4 and leukotriene C4 synthesis as well as secretion. It has been used to study the effect of IL-4 on synthesis and secretion of leukotrienes from endometrial epithelial cells of pigs.
Biochem/physiol Actions
IL-4 (Interleukin 4) is a potent lymphoid cell growth factor that stimulates the growth and survivability of certain B cells and T cells. It exhibits anti-inflammatory responses and participates in immune processes by providing protection from intracellular pathogens. IL-4 also plays an important role in Th2 (T helper cells) differentiation. Additionally, it can suppress pro-inflammatory cytokines. IL-4 is associated with pemphigus. Also, mutation in the gene is linked with risk of dental implant loss. In children, IL-4 might be involved with risk of asthma and Mycoplasma pneumoniae infection.
Physical form
Sterile filtered and lyophilized with no additives.
Reconstitution
Centrifuge the vial prior to opening. Avoid freeze-thaw cycles.
Reconstitute in water to a concentration of 0.1-1.0 mg/mL. The solution can then be diluted into other aqueous buffers.
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
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Linkage analysis of IL4 and other chromosome 5q31.1 markers and total serum immunoglobulin E concentrations.
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Interleukin 4 inhibition as a potential therapeutic in pemphigus.
Tavakolpour S and Tavakolpour V
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Association of interleukin 4 gene polymorphisms with dental implant loss.
Pigossi SC, et al.
Implant Dentistry, 23, 723-731 (2014)
Purification of a 130-kDa T cell glycoprotein that binds human interleukin 4 with high affinity.
Galizzi JP, et al.
The Journal of Biological Chemistry, 265, 439-444 (1990)
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