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Pack Size | Price | Availability | Quantity |
---|---|---|---|
20 μg | $306 | 7-10 days | |
100 μg | $726 | 7-10 days |
Biological Information | Immobilized Recombinant Human IL4 / Interleukin-4 Protein at 2μg/mL (100μL/well) can bind Recombinant Human IL4R / CD124 Protein (His Tag), Biotinylated, the EC50 is 148-560 ng/mL. |
Description | IL-4R Protein, Human, Recombinant (His), Biotinylated is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 25.2 kDa and the accession number is P24394-1. |
Species | Human |
Expression System | HEK293 Cells |
Tag | C-His |
Accession Number | P24394-1 |
Synonyms | IL-4RA,IL4RA,CD124,interleukin 4 receptor,IL4R |
Construction | The IL4R (NP_000409.1) (Met1-His232) was expressed with a polyhistidine tag at the C-terminus. The purified protein was biotinylated in vitro. |
Protein Purity | > 95 % as determined by SDS-PAGE. |
Molecular Weight | 25.2 kDa (predicted) |
Endotoxin | < 1.0 EU/μg of the protein as determined by the LAL method. |
Formulation | Lyophilized from a solution filtered through a 0.22 μm filter, containing Sterile PBS. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization. |
Reconstitution | A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information. |
Stability & Storage | It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots. |
Shipping | In general, Lyophilized powders are shipping with blue ice. |
Research Background | The cluster of differentiation (CD) system is commonly used as cell markers in Immunophenotyping. Different kinds of cells in the immune system can be identified through the surface CD molecules associating with the immune function of the cell. There are more than 320 CD unique clusters and subclusters have been identified. Some of the CD molecules serve as receptors or ligands important to the cell through initiating a signal cascade which then alters the behavior of the cell. Some CD proteins do not take part in the cell signal process but have other functions such as cell adhesion. CD124, also known as the interleukin 4 receptor (IL4R), is a typeⅠ transmembrane protein that can regulate IgE antibody production in B cells through binding to interleukin 4 and interleukin 13 and promote differentiation of Th2 cells through binding to interleukin 4. The membrane-bound form of CD124 can be hydrolyzed to a soluble form which can inhibit IL4-mediated cell proliferation and IL5 upregulation by T-cells. |
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