protein

IL-4R alpha/CD124 Protein, Rat (HEK293, Fc)

HY-P74801

50 μg

500 USD

IL-4R alpha/CD124 Protein, Rat (HEK293, Fc)

proteins

HEK293

50 μg

500 USD

IL-4R alpha is a subunit alpha shared by IL-4 and IL-13 receptors, found in leukocytes originally. IL-4R alpha couples to the JAK1/2/3-STAT6 pathway and involves in promoting Th2 differentiation [1] . IL-4R alpha/CD124, Rat consists of 801 amino acids (M1-S801), exerts IL-4 binding function and results the phosphorylation of C-terminal tyrosine residues. IL-4R alpha/CD124, Rat has an immunoreceptor tyrosine inhibitor motif (ITIM) (698-703 a.a), which can bind to the SH2 domain of some phosphatases by phosphorylating ITIM. IL-4R alpha/CD124, Rat has a a soluble form (1-229 a.a) and a transmembrane domain (233-256 a.a). The soluble IL-4R (sIL4R) inhibits IL4-induced spleen cell proliferation. IL-4R alpha/CD124, Rat is produced in HEK293 cells, including a Fibronectin typr III domain (125-223 a.a) and a C-Terminal hFc-tag.

Rat

Interleukin-4R alpha (IL-4Rα), also known as CD124 and B cell stimulatory factor (BSF) receptor, is one of the anti-inflammatory cytokines, and highly expressed in activated T-cells [1] . IL-4R alpha participates in forming two interleukin receptors in different cell types. For the type I receptor, depends on IL-4R alpha binding IL-4 to recruit IL-2R gamma chain in immune cells. IL-2R gamma is the common subunit for a variety of interleukin receptors, involved in the stimulation of neutrophil phagocytosis by IL-15. For the type II receptor, depends on IL-4R alpha binding IL-4 to recruit IL-13R alpha 1 chain. IL-13R alpha 1 is an alternat accessory protein to the common cytokine receptor gamma chain in non-immune cells [2] [3] . The sequence of amino acids in IL-4R alpha proteins in rat shows low homology with human (52.82%) and mouse (79.53%). IL-4 R alpha generates a soluble form by alternate splicing or proteolysis, maintaining ligand binding properties and inhibiting IL-4 bioactivity. IL-4 R alpha soluble isoform 1 can be produced by proteolytic cleavage at the cell surface (shedding) by a metalloproteinase [4] . IL-4 R alpha plays an important role in Th2-biased immune responses, alternative macrophage activation, mucosal immunity, allergic inflammation, tumor progression, and atherogenesis [5] .

Interleukin-4 receptor subunit alpha; IL4R alpha; IL4R

Greater than 90% as determined by reducing SDS-PAGE

Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.

Room temperature in continental US; may vary elsewhere.