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IL4R / CD124 is the alpha chain of the interleukin-4 receptor, a type I transmembrane protein that can bind interleukin 4 and interleukin 13 to regulate IgE production. The encoded protein also can bind interleukin 4 to promote differentiation of Th2 cells. A soluble form of the encoded protein can be produced by proteolysis of the membrane-bound protein, and this soluble form can inhibit IL4-mediated cell proliferation and IL5 upregulation by T-cells. Allelic variations in this gene have been associated with atopy, a condition that can manifest itself as allergic rhinitis, sinusitus, asthma, or eczema. Polymorphisms in this gene are also associated with resistance to human immunodeficiency virus type-1 infection. Alternate splicing results in multiple transcript variants.
Gene Name: | interleukin 4 receptor |
Family/Subfamily: | Interleukin |
Synonyms: | IL4R, CD124, CD124 antigen, IL-4RA, IL4R nirs variant 1, IL4RA, Interleukin 4 receptor, IL-4 receptor subunit alpha, IL-4R subunit alpha, IL-4R-alpha |
Target Sequences: | NM_000418 NP_000409.1 P24394 |
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