The plasma membrane receptor for interleukin-1 (IL-1) has been characterized from mouse EL4-6.1 thymoma cells. Following binding of IL-1 to surface labeled EL4-6.1 cells, the IL-1 binding molecule was immuno-precipitated using a rabbit antiserum against the hormone. The putative IL-1 receptor is a membrane-associated glycopeptide of Mr = 82,000 containing probably two or three N-linked glycan units as indicated by its conversion into a Mr = 60,000 polypeptide upon deglycosylation with endo-beta-N-glycosidase F.
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Bron et al. (1987) studied this question.
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