Identification of interleukin 4 receptor-associated proteins and expression of both high- and low-affinity binding on human lymphoid cells.


Interleukin 4 (IL4) produced by activated T cells expresses its biological effects on T and B lymphocytes by binding to specific membrane receptors. Cross-linking of human recombinant 125I-IL4 to peripheral blood mononuclear cells identifies a trimolecular complex consisting of a 65/70-kDa doublet and a 110-kDa protein. Scatchard analysis reveals about 300… (More)


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