- Name
- Description
- Cat#
- Pricings
- Quantity
Catalogue number
CYT-483
Synonyms
BCGF, BCDF, B cell stimulating factor, BSF-1, Lymphocyte stimulatory factor 1, IL-4, MGC79402, Binetrakin, Pitrakinra.
Introduction
Interleukin-4 is a pleiotropic cytokine produced primarily by activated T lymphocytes, basophils and mast cells. Multiple immune response-modulating functions are performed by IL-4 on a variety of cell types and it has an important role in the regulator of isotype switching, induction of IgE production in B lymphocytes and differentiation of precursor T helper cells. IL-4 binds to both membrane-bound and secreted soluble IL-4 receptors.
Description
Interleukin-4 Human Recombinant produced in E.Coli is single, a non-glycosylated, Polypeptide chain containing 150 amino acids fragment (25-153) and having a total molecular mass of 17.2kDa.
The IL-4 is fused to a 20 amino acid His-Tag at N-terminus and purified by proprietary chromatographic techniques.
The IL-4 is fused to a 20 amino acid His-Tag at N-terminus and purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Physical Appearance
Sterile Filtered clear solution.
Formulation
Interleukin-4 His-Tag is supplied in 20mM Tris-HCl and10% glycerol.
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please avoid freeze thaw cycles.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please avoid freeze thaw cycles.
Biological Activity
The ED50 for this effect is <0.5ng/ml. Measured in a cell proliferation assay using TF1 human erythroleukemic cells.
Amino acid sequence
MGSSHHHHHH SSGLVPRGSH MHKCDITLQE IIKTLNSLTE QKTLCTELTV TDIFAASKNT TEKETFCRAA TVLRQFYSHH EKDTRCLGAT AQQFHRHKQL IRFLKRLDRN LWGLAGLNSC PVKEANQSTL ENFLERLKTI MREKYSKCSS.
Purity
Greater than 95.0% as determined by SDS-PAGE.
Safety Data Sheet
Usage
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
Background
Recombinant IL-4 (Interleukin-4) is a bioengineered version of a naturally occurring cytokine, which plays a crucial role in the immune system. IL-4 is primarily produced by activated T cells, mast cells, and basophils, and it is involved in the regulation of immune responses, including the differentiation of T helper cells, B cell activation, and the production of immunoglobulins.
Recombinant IL-4 is synthesized using recombinant DNA technology, which involves inserting the gene encoding IL-4 into a suitable expression system, such as bacteria, yeast, or mammalian cells. The host cells are then cultured, allowing them to produce the desired protein, which can be purified and used for various applications.
One of the main functions of IL-4 is to promote the differentiation of naïve CD4+ T cells into T helper 2 (Th2) cells. Th2 cells are essential for coordinating immune responses against extracellular pathogens, such as parasites and allergens. They achieve this by secreting cytokines, including IL-4 itself, IL-5, and IL-13, which stimulate B cells to produce specific antibodies, eosinophils to combat parasites, and mast cells to release histamine and other inflammatory mediators.
Recombinant IL-4 has been extensively studied for its potential therapeutic applications. It has been shown to have anti-inflammatory properties, making it a potential candidate for the treatment of autoimmune and inflammatory diseases, such as rheumatoid arthritis, multiple sclerosis, and inflammatory bowel disease. Additionally, IL-4 has been found to inhibit the growth of certain cancer cells, suggesting that it may have potential as an anti-cancer agent.
However, the use of recombinant IL-4 as a therapeutic agent is not without challenges. One of the main concerns is the potential for adverse effects due to its immunomodulatory properties. For example, excessive IL-4 activity can lead to the development of allergies and asthma, as it promotes the production